Intel 850 ATX Motherboard

USERS MANUAL

USER'S NOTICE
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (ASUS). ASUS PROVIDES THIS MANUAL AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners benefit, without intent to infringe. Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated. Intel, LANDesk, and Pentium are registered trademarks of Intel Corporation. Trend and ChipAwayVirus are trademarks of Trend Micro, Inc. Windows and MS-DOS are registered trademarks of Microsoft Corporation. ADI and SoundMAX are trademarks of Analog Devices, Inc. The product name and revision number are both printed on the product itself. Manual revisions are released for each product design represented by the digit before and after the period of the manual revision number. Manual updates are represented by the third digit in the manual revision number. For previous or updated manuals, BIOS, drivers, or product release information, contact ASUS at http://www.asus.com.tw or through any of the means indicated on the following page. SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT. Copyright 2001 ASUSTeK COMPUTER INC. All Rights Reserved.
Product Name: ASUS P4T Manual Revision: 1.07 E820 Release Date: July ASUS P4T Users Manual

ASUS CONTACT INFORMATION

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2.1.1Specifications

Latest Intel Processor Support Intel Socket 423 Pentium 4 processors Intel 850 Chipset: Features the Intel 850 chipset (Memory Controller Hub, I/O Controller Hub, and Firmware Hub) with support for AGP 4X mode; 400MHz Front Side Bus (FSB); and dual channel RDRAM. Intel ICH2: The Intel I/O Controller Hub 2 (ICH2) features support for UltraDMA/100, which allows burst mode data transfer rates of up to 100MB/ sec; and two USB controllers for a total of 4 USB ports. PC800 Memory Support: Equipped with four Rambus Inline Memory Module (RIMM) sockets to support Intel PC800/PC600-compliant Rambus DRAMs (RDRAMs) (available in 64, 96, 128, 192, 256, 512MB densities) up to 2GB. These RDRAMs are necessary to meet the increase in processor performance and multimedia and 3D functions, especially where high bandwidth is required. Intel Accelerated Hub Architecture: Features a dedicated high speed hub link between the ICH2 and MCH with a bandwidth of 266MB/sec twice the maximum bandwidth of the PCI bus. AGP Pro Slot: Comes with an Accelerated Graphics Port Pro slot that supports AGP cards for high performance, component level interconnect targeted at 3D graphical applications using a 1X, 2X, or 4X mode bus. Backward compatible to support AGP 2X and AGP 1X. UltraDMA/100 Support: Comes with an onboard PCI Bus Master IDE controller with two connectors that support four IDE devices on two channels. Supports UltraDMA/100, UltraDMA/66, UltraDMA/33, PIO Modes 3 & 4 and Bus Master IDE DMA Mode 2, and Enhanced IDE devices, such as DVD-ROM, CD-ROM, CD-R/RW, LS-120, and Tape Backup drives. More USB Ports: Supports a total of 4 USB ports for more peripheral connectivity options. Wake-Up Support: Supports Wake-On-LAN, Wake-On-Ring, Keyboard WakeUp, and BIOS Wake-Up. JumperFree Mode: Allows processor settings and easy overclocking of frequency and Vcore voltage all through BIOS setup when JumperFree mode is enabled. Easy-to-use DIP switches instead of jumpers are included to allow manual adjustment of the processors external frequency. Around-the-Clock Intrusion Detection: Chassis intrusion circuitry can log chassis open events into LDCM. The onboard battery supports detection even when normal power is removed and through a new design, battery drain is even lower than the RTC used for keeping time!

2. FEATURES Performance

2.1.3 Intelligence
Auto CPU Throttling Function: Incorporated into this motherboard is a new technology to enable Pentium 4 processors auto throttling function. When auto throttling is enabled, the CPU with throttle down to 50% of its duty cycle when the CPU temperature reaches the threshold and return to 100% of its duty cycle when temperature lowers to normal level. This function ensures the best performance and reliability. Fan Status Monitoring and Alarm: To prevent system overheat and system damage, the CPU, PCI, and MAIN fans can be monitored for RPM and failure. All the fans are set for its normal RPM range and alarm thresholds. Temperature Monitoring and Alert: To prevent system overheat and system damage, this motherboard supports processor thermal sensing and auto-protection. Voltage Monitoring and Alert: System voltage levels are monitored to ensure stable current to critical motherboard components. Voltage specifications are more critical for future processors, so monitoring is necessary to ensure proper system configuration and management. System Resources Alert: Todays operating systems, such as Windows 98/ Millenium, and Windows NT/2000, require much more memory and hard drive space to present enormous user interfaces and run large applications. The onboard hardware ASUS ASIC in conjunction with either the bundled ASUS PC Probe or Intel LDCM will warn the user before the system resources are used up to prevent possible application crashes. Suggestions will give the user information on managing their limited resources more efficiently. Dual Function Power Button: Through BIOS, the power button can be defined as the Stand by (a.k.a. Suspend or Sleep) button or as the Soft-Off (see ATX Power / Soft-Off Switch Lead in 3.8 Connectors for more information) button. Regardless of the setting, pushing the power button for more than 4 seconds will enter the Soft-Off mode. Remote Ring On (requires modem): This allows a computer to be turned on remotely through an internal or external modem. With this benefit on-hand, users can access any information from their computers from anywhere in the world. Message LED (requires ACPI OS support): Message LEDs now act as information providers. Through the way a particular LED illuminates, the user can determine if a message has been received from a fax/modem. A simple glimpse provides useful information to the user. This function requires ACPI OS and driver support. Peripheral Power Up: Keyboard or Mouse power up can be enabled or disabled through BIOS setup to allow the computer to be powered ON using your keyboard or mouse click.

2. FEATURES Intelligence

2.2 P4T Motherboard Components
See opposite page for locations.
Location Processor Support Socket 423 for Pentium 4 Processors.. 1 Feature Setting DIP Switches... 8 Chipsets Intel 850 Memory Controller Hub (MCH). 2 Intel I/O Controller Hub 2 (ICH2)... 12 4Mbit Firmware Hub (FWH).. 14 Low Pin Count (LPC) Multi-I/O Chipset. 16 Main Memory Maximum 2GB support 4 RIMM Sockets... 3 Dual Channel PC800/PC600 RDRAM support Expansion Slots 5 PCI Slots... Accelerated Graphics Port (AGP) Pro Slot.. 19 System I/O 2 IDE Connectors (UltraDMA33/66/100 support). Floppy Disk Drive Connector.. USB Header (supports 2 USB ports).. USB Port Connectors... Parallel Port Connector.. (Top) Serial COM1/COM2 Port Connectors.. (Bottom) 21, PS/2 Mouse Connector... (Top) PS/2 Keyboard Connector.. (Bottom) 24 Network Features LAN (RJ-45) Connector (optional).. (Top) 20 Wake-On-LAN Connector.. 15 Wake-On-Ring Connector.. 17 Hardware Monitoring System Voltage Monitoring (integrated in ASUS ASIC). 10 Power ATX Power Supply Connector.. 6 ATX 12V Power Supply Connector... 9 Auxiliary Power Supply Connector... 5 Special Feature Onboard LED... 13 Form Factor ATX
2. FEATURES MB Components
2.2.1 Component Locations
2. FEATURES Component Locations

3. HARDWARE SETUP

3.1 P4T Motherboard Layout

24.4cm (9.60in)

PS/2KBMS
RIMMB1 (16/18 bit, 184-pin module)

PARALLEL PORT

RIMMA2 (16/18 bit, 184-pin module)
RIMMA1 (16/18 bit, 184-pin module)

MAIN_FAN

AUX Power Connector

COM2 USBPWR

CPU_FAN

Intel 850

Memory Controller Hub (MCH)

ATX Power Connector

T: Mouse B: Keyboard
RIMMB2 (16/18 bit, 184-pin module)

FLOPPY

Socket 423

T: Port1 RJ-45 B: Port2

ATX12V

SECONDARY IDE

Accelerated Graphics Port (AGP Pro)

PCI1 PCI2 PCI3 PCI4

CR2032 3V Lithium Cell CMOS Power
Intel I/O Controller Hub (ICH2) CLRTC

SCSILED

PCI_FAN

CHASSIS

IR SMB

Multi I/O

HDDLED
Grayed components are available only on certain models at the time of purchase.

2) PS/2 Keyboard Connector (Purple 6-pin PS2KBMS) This connection is for a standard keyboard using an PS/2 plug (mini DIN). This connector will not allow standard AT size (large DIN) keyboard plugs. You may use a DIN to mini DIN adapter on standard AT keyboards.
PS/2 Keyboard (6-pin Female)
3) Parallel Port Connector (Burgundy 25-pin PRINTER) You can enable the parallel port and choose the IRQ through Onboard Parallel Port (see 4.4.2 I/O Device Configuration). NOTE: Serial printers must be connected to the serial port.
Parallel Port (25-pin Female)
COM1 COM2 Serial Ports (9-pin Male)
5) Universal Serial Bus Ports (Black two 4-pin USB) Two USB ports are available for connecting USB devices. For additional USB ports, you can use the USB headers (see USB Headers later in this section). NOTE: USB Function (see 4.4.3 PCI Configuration) must be Enabled to use these ports.
4) Serial Port Connectors (Teal/Turquoise 9-pin COM1, 10-1 pin COM2) Two serial ports are ready for a mouse or other serial devices. See Onboard Serial Port 1/2 in 4.4.2 I/O Device Configuration for settings.
6) Fast-Ethernet Port Connector (RJ45) (optional) The RJ45 connector is optional at the time of purchase and is located on top of the USB connectors. The connector allows the motherboard to connect to a Local Area Network (LAN) through a network hub.

RJ-45 Port

7) Primary (Blue) / Secondary IDE Connectors (Two 40-1pin IDE) These connectors support the provided IDE hard disk ribbon cable. Connect the cables blue connector to the motherboards primary (recommended) or secondary IDE connector, and then connect the gray connector to your UltraDMA/100 slave device (hard disk drive) and the black connector to your UltraDMA/100 master device. It is recommended that non-UltraDMA/100 devices be connected to the secondary IDE connector. If you install two hard disks, you must configure the second drive to Slave mode by setting its jumper accordingly. Please refer to your hard disk documentation for the jumper settings. BIOS now supports specific device bootup (see 4.6 Boot Menu). (Pin 20 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 20 plugged). TIP: You may configure two hard disks to be both Masters with two ribbon cables one for the primary IDE connector and another for the secondary IDE connector. You may install one operating system on an IDE drive and another on a SCSI drive and select the boot disk through 4.6 Boot Menu. IMPORTANT: UltraDMA/100 IDE devices must use a 40-pin 80-conductor IDE cable for 100MByte/sec transfer rates.
Secondary IDE Connector Primary IDE Connector

3. H/W SETUP Connectors

NOTE: Orient the red markings (usually zigzag) on the IDE ribbon cable to PIN 1.

+5V (NC) IRRX GND IRTX

Front View

Back View

IRTX GND IRRX

+5V (NC)

P4T Infrared Module Connector
18) Device Thermal Sensor Connector (2-pin TR2) If you have a device (e.g. power supply) with thermal monitoring, connect its thermal sensor cable to this connector.

Thermal Sensor Connector

P4T Thermal Sensor Connector
19) Power Supply Connectors (20-pin block ATXPWR) (6-pin AUXPWR) (4-pin ATX12V) These connectors connect to an ATX 12V power supply. Each plug from the power supply will only insert in one orientation because of the different hole sizes. Find the proper orientation and push down firmly making sure that the pins are aligned. An auxiliary power supply may be needed depending on your system configuration.
IMPORTANT: Make sure that your ATX 12V power supply (minimum recommended wattage: 230 watts; 300W for a fully-configured system) can supply at least 20 amperes on the +5-volt lead and at least 720mA on the +5-volt standby lead (+5VSB). Your system may become unstable/unreliable and may experience difficulty in powering up if your power supply is inadequate. For WakeOn-LAN support, your ATX power supply (minimum recommended wattage: 230watts) must supply at least 720mA +5VSB.
P4T ATX & Auxiliary Power Connectors

AUXPWR

ATXPWR
+12.0VDC +5VSB PWR_OK COM +5.0VDC COM +5.0VDC COM +3.3VDC +3.3VDC +5.0VDC +5.0VDC -5.0VDC COM COM COM PS_ON# COM -12.0VDC +3.3VDC

COM +12V DC

Pin 1 COM +12V DC
The following is for items 2026

Keyboard Lock Power LED

PLED Keylock Ground +5 V

Speaker Connector

+5V Ground Ground Speaker
+5 V MLED ExtSMI# Ground PWR Ground

Message LED

Reset SW ATX Power Switch*

SMI Lead

* Requires an ATX power supply.
P4T System Panel Connectors
20) System Power LED Lead (3-1 pin PWRLED) This 3-1 pin connector connects the system power LED, which lights when the system is powered on and blinks when it is in sleep mode. 21) Keyboard Lock Switch Lead (2-pin KEYLOCK) This 2-pin connector connects to the case-mounted key switch to allow keyboard locking. 22) System Warning Speaker Connector (4-pin SPEAKER) This 4-pin connector connects to the case-mounted speaker. Two sources (LINE_OUT and SPEAKER) will allow you to hear system beeps and warnings. Only SPEAKER will allow you to hear system beeps before the integrated audio has been properly initialized. 23) System Message LED Lead (2-pin MSG.LED) This indicates whether a message has been received from a fax/modem. The LED will remain lit when there is no signal and blink when there is data received. This function requires an ACPI OS and driver support. 24) System Management Interrupt Lead (2-pin SMI) This allows the user to manually place the system into a suspend mode or Green mode, where system activity is decreased to save electricity and expand the life of certain components when the system is not in use. This 2-pin connector connects to the case-mounted suspend switch. 25) ATX Power Switch Lead (2-pin PWRSW) The system power is controlled by a momentary switch connected to this lead. Pressing the button once will switch the system between ON and SOFT OFF. Pushing the switch while in the ON mode for more than 4 seconds will turn the system off. The system power LED shows the status of the systems power. 26) Reset Switch Lead (2-pin RESET) This 2-pin connector connects to the case-mounted reset switch for rebooting your computer without having to turn off your power switch. This is a preferred method of rebooting to prolong the life of the systems power supply. ASUS P4T Users Manual 39

Manually enter the number of cylinders, heads and sectors per track for your drive. Refer to your drive documentation or look on the drive for this information. If no drive is installed or if you are removing a drive and not replacing it, select [None]. Translation Method [LBA] Select the hard disk drive type in this field. When Logical Block Addressing is enabled, 28-bit addressing of the hard drive is used without regard for cylinders, heads, or sectors. Note that LBA Mode is necessary for drives with greater than 504MB in storage capacity. Configuration options: [LBA] [LARGE] [Normal] [Match Partition Table] [Manual] Cylinders This field configures the number of cylinders. Refer to your drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, the Type field must be set to [User Type HDD] and the Translation Method field must be set to [Manual].
Head This field configures the number of read/write heads. Refer to your drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, the Type field must be set to [User Type HDD] and the Translation Method field must be set to [Manual]. Sector This field configures the number of sectors per track. Refer to your drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, the Type field must be set to [User Type HDD] and the Translation Method field must be set to [Manual]. CHS Capacity This field shows the drives maximum CHS capacity calculated automatically by the BIOS from the drive information you entered. Maximum LBA Capacity This field shows the drives maximum LBA capacity calculated automatically by the BIOS from the drive information you entered. Multi-Sector Transfers [Maximum] This option automatically sets the number of sectors per block to the highest number supported by the drive. This field can also be configured manually. Note that when this field is automatically configured, the set value may not always be the fastest value for the drive. Refer to the documentation that came with your hard drive to determine the optimal value and set it manually. NOTE: To make changes to this field, the Type field must be set to [User Type HDD]. Configuration options: [Disabled] [2 Sectors] [4 Sectors] [8 Sectors] [16 Sectors] [32 Sectors] [Maximum] SMART Monitoring [Disabled] This allows the enabling or disabling of the S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) system which utilizes internal hard disk drive monitoring technology. This feature is normally disabled because system resources used in this feature may decrease system performance. Configuration options: [Disabled] [Enabled] PIO Mode [4] This option lets you set a PIO (Programmed Input/Output) mode for the IDE device. Modes 0 through 4 provide successively increased performance. Configuration options: [0] [1] [2] [3] [4] Ultra DMA Mode [Disabled] Ultra DMA capability allows improved transfer speeds and data integrity for compatible IDE devices. Set to [Disabled] to suppress Ultra DMA capability. NOTE: To make changes to this field, the Type field must be set to [User Type HDD]. Configuration options: [0] [1] [2] [3] [4] [Disabled] ASUS P4T Users Manual 53

4. BIOS SETUP Chip Configuration
PCI 2.1 Support [Enabled] This function allows you to enable or disable PCI 2.1 features including passive release and delayed transaction. Configuration options: [Disabled] [Enabled] High Priority PCI Mode [Enabled] This field allows you to give PCI slot 1 a higher priority. You may want to leave on the default setting if you are using an IEEE-1394 PCI card. Configuration options: [Disabled] [Enabled] Onboard PCI IDE Enable [Both] You can select to enable the primary IDE channel, secondary IDE channel, both, or disable both channels. Configuration options: [Both] [Primary] [Secondary] [Disabled]
4.4.2 I/O Device Configuration
Onboard Lan Controller [Enabled] (only on model with LAN) This motherboard features an integrated LAN controller. If you want to use it, leave it on the default setting. If you want to use an add-on LAN card, select [Disabled]. Configuration options; [Disabled] [Enabled]
4. BIOS SETUP I/O Device Config
NOTE: To disable the integrated LAN controller, you must first set this field to [Disable], shut down your system, and then restart. Floppy Disk Access Control [R/W] When set to [Read Only], this field protects files from being copied to floppy disks by allowing reads from the floppy disk drive but not writes. The setup default [R/W] allows both reads and writes. Configuration options: [R/W] [Read Only] Onboard Serial Port 1 [3F8H/IRQ4], Onboard Serial Port 2 [2F8H/IRQ3] These fields allow you to set the addresses for the onboard serial connectors. Serial Port 1 and Serial Port 2 must have different addresses. Configuration options: [3F8H/ IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/IRQ10] [Disabled]
UART2 Use Standard Infrared [Disabled] When enabled, this field activates the onboard standard infrared feature and sets the second serial UART to support the infrared module connector on the motherboard. If your system already has a second serial port connected to the onboard COM2 connector, it will no longer work if you enable the infrared feature. See IrDA-Compliant Infrared Module Connector in 3.8 External Connectors. Configuration options: [Disabled] [Enabled] Onboard Parallel Port [378H/IRQ7] This field sets the address of the onboard parallel port connector. If you disable this feature, Parallel Port Mode and ECP DMA Select configurations will not be available. Configuration options: [Disabled] [378H/IRQ7] [278H/IRQ5] Parallel Port Mode [ECP+EPP] This field allows you to set the operation mode of the parallel port. [Normal] allows normal-speed operation but in one direction only; [EPP] allows bidirectional parallel port operation; [ECP] allows the parallel port to operate in bidirectional DMA mode; [ECP+EPP] allows normal speed operation in a two-way mode. Configuration options: [Normal] [EPP] [ECP] [ECP+EPP] ECP DMA Select [3] This field allows you to configure the parallel port DMA channel for the selected ECP mode. This selection is available only if you select [ECP] or [ECP+EPP] in Parallel Port Mode above. Configuration options: [1] [3]

4. BIOS SETUP Power Menu

Video Off Option [Suspend -> Off ] This field determines when to activate the video off feature for monitor power management. Configuration options: [Always On] [Suspend -> Off] Video Off Method [DPMS OFF] This field defines the video off features. The DPMS (Display Power Management System) feature allows the BIOS to control the video display card if it supports the DPMS feature. [Blank Screen] only blanks the screen (use this for monitors without power management or green features. If set up in your system, your screen saver will not display with [Blank Screen] selected). [V/H SYNC+Blank] blanks the screen and turns off vertical and horizontal scanning. Configuration options: [Blank Screen] [V/H SYNC+Blank] [DPMS Standby] [DPMS Suspend] [DPMS OFF] [DPMS Reduce ON] HDD Power Down [Disabled] Shuts down any IDE hard disk drives in the system after a period of inactivity as set in this user-configurable field. This feature does not affect SCSI hard drives. Configuration options: [Disabled] [1 Min] [2 Min] [3 Min].[15 Min] Suspend-to-RAM Capability [Disabled] Suspend-to-RAM (STR) is an energy-saving feature. In Suspend-to-RAM state, all devices on the computer are turned off, except for the system RAM. Thus, the PC consumes less than 5 Watts of power. Select [Enabled] if your power supply can supply at least 720mA on the +5VSB lead to support the STR function. If the expansion cards you use on the motherboard do not support the STR function, you must leave this field on the default setting [Disabled]. NOTE: This field is only effective for Windows 98. Configuration options: [Disabled] [Enabled] Suspend Mode [Disabled] Sets the time period before the system goes into suspend mode. NOTE: This field is effective for DOS, Windows 9x, and Windows NT 4.0 environments. Configuration options: [Disabled] [1~2 Min] [2~3 Min].[1 Hour] PWR Button < 4 Secs [Soft Off] When set to [Soft off], the ATX switch can be used as a normal system power-off button when pressed for less than 4 seconds. [Suspend] allows the button to have a dual function where pressing less than 4 seconds will place the system in sleep mode. Regardless of the setting, holding the ATX switch for more than 4 seconds will power off the system. Configuration options: [Soft off] [Suspend]

4.5.1 Power Up Control

AC PWR Loss Restart [Disabled] This allows you to set whether you want your system to reboot after the power has been interrupted. [Disabled] leaves your system off and [Enabled] reboots your system. [Previous State] sets your system back to the state it is before the power interruption. Configuration options: [Disabled] [Enabled] [Previous State] PWR Up On external Modem Act [Disabled] This allows either settings of [Enabled] or [Disabled] for powering up the computer when the external modem receives a call while the computer is in Soft-off mode. NOTE: The computer cannot receive or transmit data until the computer and applications are fully running. Thus connection cannot be made on the first try. Turning an external modem off and then back on while the computer is off causes an initialization string that will also cause the system to power on. Configuration options: [Disabled] [Enabled] Wake On LAN or PCI Modem card [Disabled] Wake-On-LAN or a PCI modem card allows your computer to be booted from another computer via a network by sending a wake-up frame or signal. Configuration options: [Disabled] [Enabled] IMPORTANT: This feature requires an optional network interface with Wake-OnLAN and an ATX power supply with at least 720mA +5V standby power.

4. BIOS SETUP Boot Menu

Plug & Play O/S [No] This field allows you to use a Plug-and-Play (PnP) operating system to configure the PCI bus slots instead of using the BIOS. When [Yes] is selected, interrupts may be reassigned by the OS. When a non-PnP OS is installed or you want to prevent reassigning of interrupt settings, select the default setting of [No]. Configuration options: [No] [Yes] Boot Virus Detection [Enabled] This field allows you to set boot virus detection, ensuring a virus-free boot sector. The system halts and displays a warning message when it detects a virus. If this occurs, you can either allow the operation to continue or use a virus-free bootable floppy disk to restart and investigate your system. Configuration options: [Disabled] [Enabled] Quick Power On Self Test [Enabled] This field speeds up the Power-On-Self Test (POST) routine by skipping retesting a second, third, and fourth time. Configuration options: [Disabled] [Enabled] Boot Up Floppy Seek [Enabled] When enabled, the BIOS will seek the floppy disk drive to determine whether the drive has 40 or 80 tracks. Configuration options: [Disabled] [Enabled]

72 ASUS P4T Users Manual

4.7 Exit Menu
Once you have made all of your selections from the various menus in the Setup program, you should save your changes and exit Setup. Select Exit from the menu bar to display the following menu:

Exit Saving Changes

Once you are finished making your selections, choose this option from the Exit menu to ensure the values you selected are saved to the CMOS RAM. The CMOS RAM is sustained by an onboard backup battery and stays on even when the PC is turned off. Once this option is selected, a confirmation is asked. Select [Yes] to save changes and exit. NOTE: If you attempt to exit the Setup program without saving your changes, the program will prompt you with a message asking if you want to save your changes before exiting. Pressing <Enter> will then save changes while exiting.

Exit Discarding Changes

This option should only be used if you do not want to save the changes you have made to the Setup program. If you have made changes to fields other than system date, system time, and password, the system will ask for confirmation before exiting.

4. BIOS SETUP Exit Menu

NOTE: Pressing <Esc> does not exit this menu. You must select one of the options from this menu or <F10> from the legend bar to exit this menu.

Load Setup Defaults

This option allows you to load the default values for each of the parameters on the Setup menus. When this option is selected or if <F5> is pressed, a confirmation is requested. Select [Yes] to load default values. You can now select Exit Saving Changes or make other changes before saving the values to the non-volatile RAM.

Discard Changes

It will not start.

The sound cannot be heard, or is not output.
6.3.4 YAMAHA XGplayer Minimize Panel
The performance tempo is distorted, or the sound is choppy. Mouse reaction becomes slow.
This will happen if you put an extra load on the CPU during a performance by starting another application, accessing a floppy disk, or CD-ROM driver, etc. Processing requirements may exceed the performance capabilities of your CPU. Please reduce the number of sounds generated to reduce the load on the CPU and/or lower the sound quality setting in the SoftSynthesizer setting screen under Control.
No sound can be heard in MIDI compatible games, or there does not seem to be any sound output.
S-YXG 50 cannot be used in DOS mode or at the MS-DOS prompt. The generated sounds in MIDI compatible games are generated late. Certain games that are not compatible with DirectSound, delays in the voice (Wave) data may be detectable. Noise will be mixed in with the playback sound if you are using a computer with DirectX2 installed. In this case, the sound quality is set on 11K and DirectSound is ON when a MIDI file is played. Please install DirectX3 or 5 or use the current setup with the DirectSound feature turned OFF. If the CPUs load is increased, there will be deviations in the timing of data transfer to the CODEC. As a result, noise may be generated. In such a case, open the SoftSynthesizer setting screen and click OK. The timing discrepancy will be reset.
Noise gets mixed in with the playback sound.
CyberLink PowerPlayer SE is an intelligent software player that can automatically detect and playback all kinds of video/audio files, CD and MP3 files as well. This is the only software you need for all types of video and audio files. No need to waste time identifying your file types.
6.4.1 Starting CyberLink PowerPlayer SE
To start CyberLink Power Player, click the Windows Start button, point to Programs, and then CyberLink PowerPlayer SE, and then click PowerPlayer.
6.4.2 CyberLink PowerPlayer Control Panel
Minimize Zoom About Eject Help Power Off
Stop Backward Scan Backstep Frame Previous Stop Forward Scan Step Frame Next Play
Configuration i-Power! CD Mode Shuffle
Increase Volume Mute Decrease Volume

Karaoke

Next angle
Next audio stream Next subtitle

Add bookmark

Capture frame

Repeat

Go to bookmark
6. S/W REFERENCE Windows 98
6.4 CyberLink PowerPlayer SE
6.5 CyberLink VideoLive Mail
CyberLinks VideoLive Mail Plus Ver 3.0 (a.k.a. VLM 3) is a convenient and excellent way to create professional quality video mails from PC video/audio input devices and to send the mails to any recipients via VLM 3s built-in e-mail system through the Internet. VLM 3s mails comprise video, sound, or snapshot information; and thus may convey the most profound information to target audiences. It is very convenient for mail recipients who do not need to install additional software component in order to view VLM 3 mails. VLM 3 works as a very applicant sales tool. It efficiently delivers profound and live product information to your target customers without costing a fortune. VLM 3 also helps corporate managers easily give vivid speeches and broadcast through corporate E-mail system. For personal or home users, VLM 3 easily records live video clips allowing users to send them to friends or family members across the Internet. VLM 3 loads video messages from PC cameras, digital camcorders, analog camcorder via video capture cards, or from an existing AVI video clips, and captures audio messages from PC microphones. Video and audio messages are encoded at a very high compressed rate in a real-time mode. From data input, data conversion, to sending video mails via Internet, or saving data to disks, the whole procedure is done in an easy and continuous process. VLM 3s video clip compression rate is up to 1:900, and its playback rate is up to 30 frame per second. VLM 3 provides CIF (352 x 288 pixel) display resolution, and support true color configuration. A one-minute video mail with QCIF (176 x 144) resolution takes up less than 500KB of memory, making it easy to transmit and save mail. Users may always adjust resolution and recording parameters for different purpose. VLM 3 supports all the hardware devices that are compliant with Video for Windows standard. Video for Windows is a well-accepted and well-tested standard. Thus, users do not have to worry about compatibility issues.

ROM (Read Only Memory) ROM is nonvolatile memory used to store permanent programs (called firmware) used in certain computer components. Flash ROM (or EEPROM) can be reprogrammed with new programs (or BIOS). SCSI (Small Computer System Interface) High speed multi-threaded I/O interface defined by the X3T9.2 committee of the American National Standards Institute (ANSI) for connecting many peripheral devices. The standard started from 10MBytes/sec to 160MBytes/sec available today. SDRAM (Synchronous DRAM) The SDRAM features a fully synchronous operation referenced to a positive edge clock whereby all operations are synchronized at a clock input which enables the coexistence of high performance and a simple user interface. SDRAM takes memory access away from the CPU's control; internal registers in the chips accept the request, and let the CPU do something else while the data requested is assembled for the next time the CPU talks to the memory. As they work on their own clock cycle, the rest of the system can be clocked faster. There is a version optimized for video cards, and main memory for motherboards. SPD for SDRAM module Serial Presence Detect (SPD) is most like an ID detect for SDRAM module, it using a EEPROM component on DIMM module for storing module configuration information inside. The Serial Presence Detect function is implemented using a 2048 bit EEPROM component. This nonvolatile storage device contains data programmed by the DIMM manufacturer that identifies the module type and various SDRAM organization and timing parameters. SSE (Streaming SIMD Extensions) A set of new instructions added to existing architectures that enables a better visual experience with an accelerated 3D geometry pipeline and support for new applications, such as real-time video encoding and speech recognition. System Disk A system disk contains the core file of an operating system and is used to boot up the operating system. UltraDMA Ultra DMA/33 is a "synchronous DMA" protocol designed by Intel. This function is included into Intel's PIIX4 chipset. The traditional IDE transfer only uses one edge of the data stroke as the data transfer. Ultra DMA/33 uses both edges of data strobe when the data is transferred. Hence, the data transfer rate is double of the PIO mode 4 or DMA mode 2 (16.6MB/s x2 = 33MB/s) on ATA-2 devices. Ultra ATA/66, also known as Ultra DMA/66, is an extension of current Ultra ATA/ 33 interface. This new high-speed interface has doubled the Ultra ATA/33 burst data transfer rate to 66.6 Mbytes/sec and maximized disk performance under current PCI local bus environment USB (Universal Serial Bus) A 4-pin serial cable bus that allows up to 127 plug and play computer peripherals such as keyboard, mouse, joystick, scanner, printer, modem, and monitor to share a bandwidth through a host scheduled token based protocol. This allows attaching or detaching while the host and other peripherals are in operation. Supports synchronous and asynchronous transfer types over the same set of wires up to 12Mbit/sec. USB 2.0 provides twice the transfer rate compared to USB 1.0 and competes with the 1394 standard. Wake-On-LAN Computer will automatically wake-up upon receiving a wake-up packet through a Network interface when it is under power soft-off, suspend or sleep mode.

2. FEATURES Specifications
Low Pin Count (LPC) Multi-I/O: Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART2 can also be directed from COM2 to the Infrared Module for wireless connections. Enhanced ACPI & Anti-Boot Virus Protection: Programmable BIOS (Flash EEPROM), offering enhanced ACPI for Windows 98/2000/Millenium compatibility, built-in firmware-based virus protection, and autodetection of most devices for virtually automatic setup. Smart BIOS: 4Mbit firmware gives a new easy-to-use interface which provides more control and protection over the motherboard. Provides Vcore and CPU/ RDRAM frequency adjustments, boot block write protection, and HD/SCSI/MO/ ZIP/CD/Floppy boot selection. IrDA: Supports an optional infrared port module for a wireless interface. Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI master bus to the memory and processor.
2.1.2 Optional Components
Realtek RTL8139C Ethernet: (optional) Single chip fast ethernet controller for 100/10 Mbps data transfer capacity. (See 4.4.2: I/O Device Configuration in BIOS setup). IEEE 1394 Controller Interface: (optional) Integrated 3 Port TI 400Mbps capable link-layer controller and 400Mbps physical layer controller provides the fastest available digital interface for throughput intensive consumer electronics devices like: DV camcorders, digital cameras, scanners, and printers. The IEEE-1394 supports traditional asynchronous data transfer as well as isochronous (real-time) data transfer. Up to 63 peripheral devices may be connected simultaneously. The IEEE 1394 is the fastest available interface for the latest consumer electronics devices.
2. FEATURES Optional Components
2.1.3 Performance Features
High-Speed Data Transfer Interface: Onboard IDE Bus Master controller with two connectors that support four IDE devices in two channels. Supports UltraDMA/100/66, UltraDMA/33 (IDE DMA Mode 2), PIO Modes 3 & 4, and supports Enhanced IDE devices, such as DVD-ROM, CD-ROM, CD-R/RW, LS-120, and Tape Backup drives. UltraDMA/100 is backward compatible with DMA/66, DMA/33, and DMA and with existing DMA devices and systems so there is no need to upgrade current EIDE/IDE drives and host systems. (UltraDMA/66/100 requires a 40-pin 80-conductor cable to be enabled.) RDRAM Optimized Performance: This motherboard supports the new generation memory, Rambus Dynamic Random Access Memory (RDRAM). While PC100 SDRAM modules operate at 100MHz with a peak bandwidth of 0.8GB/s, MCH dual channel Rambus DRAMs can operate at up to 400MHz with a peak bandwidth of 3.2GB/s. ACPI Ready: ACPI (Advanced Configuration and Power Interface) is also implemented on all ASUS smart series motherboards. ACPI provides more Energy Saving Features for future operating systems (OS) supporting OS Direct Power Management (OSPM) functionality. With these features implemented in the OS, PCs can be ready around the clock, yet satisfy all the energy saving standards. To realize the benefits of ACPI, an ACPI-supported OS, such as Windows 98/ 2000/Millenium, must be used. Suspend and Go: Suspend-to-RAM (STR) provides maximum power savings as an alternative to leaving the computer ON and QuickStart so that you do not have to wait for a long time for system bootup. New Compliancy: Both the BIOS and hardware levels of the motherboard meet the stringent requirements for PC 99 certification. The new PC 99 requirements for systems and components are based on the following high-level goals: support for Plug and Play compatibility and power management for configuring and managing all system components, and 32-bit device drivers and installation procedures for Windows 95/NT and later. Color-coded connectors and descriptive icons make identification easy as required by PC 99.

Secondary IDE Connector Primary IDE Connector
NOTE: Orient the red markings (usually zigzag) on the IDE ribbon cable to PIN 1.

P4T-M IDE Connectors

12) USB Headers (10-1 pin USB2) If the USB Ports on the back panels are inadequate, a USB header is available for two additional USB ports. Connect the 10-1 pin ribbon cable from the provided 2-port USB connector set to the midboard 10-1 pin USB header and mount the USB connector set to an open slot on your chassis.
1: USB Power 2: USBP2 3: USBP2+ 4: GND 5: NC
6: USB Power 7: USBP3 8: USBP3+ 9: GND

P4T-M USB Headers

13) Internal Audio Connectors (4-pin VIDEO, CD_IN, AUX) These connectors allow you to receive stereo audio input from such audio-visual sources as a VIDEO or CD-ROM input, or MPEG card.

VIDEO AUX_CON

Left Audio Channel Ground Ground Right Audio Channel
P4T-M Internal Audio Connectors
14) IEEE-1394 Headers (8-pin 1394HEAD2/1394HEAD3) (optional) These headers support an IEEE-1394 serial connector cable set that mounts to a standard expansion slot in the computer case. 1394-compliant internal fixed disk drives may also be connected to these headers.
+12V Ground TPB2TPB2+ TPA2TPA2+ Ground Ground

1394HEAD2 1394HEAD3

P4T-M IEEE-1394 Headers
15) Chassis (CHA_FAN), CPU (CPU_FAN), Power Supply (PWR_FAN) Fan Connectors (3 pins) These connectors support cooling fans of 350mA (4.2 Watts) or less. Orientate the fans so that the heat sink fins allow airflow to go across the onboard heat sink(s) instead of the expansion slots. Depending on the fan manufacturer, the wiring and plug may be different. The red wire should be positive, while the black should be ground. Connect the fans plug to the board taking into consideration the polarity of the connector. NOTE: The Rotation signal is to be used only by a specially designed fan with rotation signal. The Rotations per Minute (RPM) can monitored using a utility such as ASUS PC Probe or Intel LDCM. WARNING! The CPU and/or motherboard will overheat if there is no airflow across the CPU and onboard heatsinks. Damage may occur to the motherboard and/or the CPU fan if these pins are incorrectly used. These are not jumpers, do not place jumper caps over these pins.

Rotation +12V GND

GND +12V Rotation

CHA_FAN

P4T-M 12-Volt Cooling Fan Power
16) Digital Audio Interface Connector (3-pin SPDIFOUT) This connector is used to send audio signal outputs to amplifiers and speakers and to digital recording devices like mini CD player/recorders.

+5V SPDIFOUT Ground

P4T-M Digital Audio Interface
17) Wake-On-LAN Connector (3-pin WOL) This connector supports a LAN card with a Wake-On-LAN output, such as the ASUS PCI-L101 Ethernet card (see 7. Appendix). The connector powers up the system when a wakeup packet or signal is received through the LAN card. IMPORTANT: This feature requires that Wake On LAN or PCI Modem is enabled (see BIOS 4.5.1 Power Up Control) and that your system has an ATX power supply with at least 720mA +5V standby power.

3.8 Starting Up the First Time
1. After all connections are made, close the system case cover. 2. Be sure that all switches are off (in some systems, marked with ). 3. Connect the power supply cord into the power supply located on the back of your system case according to your system users manual. 4. Connect the power cord into a power outlet that is equipped with a surge protector. 5. You may then turn on your devices in the following order: a. Your monitor b. External SCSI devices (starting with the last device on the chain) c. Your system power. For ATX power supplies, you need to switch on the power supply as well as press the ATX power switch on the front of the case. 6. The power LED on the front panel of the system case will light. For ATX power supplies, the system LED will light when the ATX power switch is pressed. The LED on the monitor may light up or switch between orange and green after the systems if it complies with green standards or if it has a power standby feature. The system will then run power-on tests. While the tests are running, the BIOS will alarm beeps or additional messages will appear on the screen. If you do not see anything within 30 seconds from the time you turn on the power, the system may have failed a power-on test. Recheck your jumper settings and connections or call your retailer for assistance.

Award BIOS Beep Codes

Beep One short beep when displaying logo Long beeps in an endless loop One long beep followed by three short beeps High frequency beeps when system is working Meaning No error during POST No DRAM installed or detected Video card not found or video card memory bad CPU overheated System running at a lower frequency

3. H/W SETUP Powering Up

7. During power-on, hold down <Delete> to enter BIOS setup. Follow the instructions in 4. BIOS SETUP. * Powering Off your computer: You must first exit or shut down your operating system before switching off the power switch. For ATX power supplies, you can press the ATX power switch after exiting or shutting down your operating system. If you use Windows 9X, click the Start button, click Shut Down, and then click Shut down the computer? The power supply should turn off after Windows shuts down. NOTE: The message You can now safely turn off your computer will not appear when shutting down with ATX power supplies.
38 ASUS P4T-M Users Manual

4. BIOS SETUP

4.1 Managing and Updating Your BIOS
4.1.1 Upon First Use of the Computer System
It is recommended that you save a copy of the original motherboard BIOS along with a Flash Memory Writer utility (AFLASH.EXE) to a bootable floppy disk in case you need to reinstall the BIOS later. AFLASH.EXE is a Flash Memory Writer utility that updates the BIOS by uploading a new BIOS file to the programmable flash ROM on the motherboard. This file works only in DOS mode. To determine the BIOS version of your motherboard, check the last four numbers of the code displayed on the upper left-hand corner of your screen during bootup. Larger numbers represent a newer BIOS file. 1. Type FORMAT A:/S at the DOS prompt to create a bootable system floppy disk. DO NOT copy AUTOEXEC.BAT & CONFIG.SYS to the disk. 2. Type COPY E:\AFLASH\AFLASH.EXE A:\ (assuming E is your CD-ROM drive) to copy AFLASH.EXE to the just created boot disk. NOTE: AFLASH works only in DOS mode. It will not work with DOS prompt in Windows and will not work with certain memory drivers that may be loaded when you boot from your hard drive. It is recommended that you reboot using a floppy. 3. Reboot your computer from the floppy disk. NOTE: BIOS setup must specify Floppy as the first item in the boot sequence. 4. In DOS mode, type A:\AFLASH <Enter> to run AFLASH.

IMPORTANT! If unknown is displayed after Flash Memory:, the memory chip is either not programmable or is not supported by the Flash utility and therefore, cannot be programmed by the Flash Memory Writer utility.
4. BIOS SETUP Updating BIOS
5. Select 1. Save Current BIOS to File from the Main menu and press <Enter>. The Save Current BIOS To File screen appears.
6. Type a filename and the path, for example, A:\XXX-XX.XXX and then press <Enter>.
4.1.2 Updating BIOS Procedures
WARNING! Only update your BIOS if you have problems with your motherboard and you know that the new BIOS revision will solve your problems. Careless updating can result in your motherboard having more problems! 1. Download an updated ASUS BIOS file from the Internet (WWW or FTP) (see ASUS CONTACT INFORMATION on page 3 for details) and save to the disk you created earlier. 2. Boot from the disk you created earlier. 3. At the A:\ prompt, type AFLASH and then press <Enter>. 4. At the Main Menu, type 2 and then press <Enter>. The Update BIOS Including Boot Block and ESCD screen appears. 5. Type the filename of your new BIOS and the path, for example, A:\XXXXX.XXX, and then press <Enter>. NOTE: To cancel this operation, press <Enter>.
6. When prompted to confirm the BIOS update, press Y to start the update.
7. The utility starts to program the new BIOS information into the flash ROM. The boot block will be updated automatically only when necessary. This will minimize the chance that a failed update will prevent your system from booting up. When the programming is finished, Flashed Successfully will be displayed.
8. Follow the onscreen instructions to continue:
WARNING! If you encounter problems while updating the new BIOS, DO NOT turn off your system since this might prevent your system from booting up. Just repeat the process, and if the problem still persists, update the original BIOS file you saved to disk above. If the Flash Memory Writer utility was not able to successfully update a complete BIOS file, your system may not be able to boot up. If this happens, your system will need servicing.

4.2 BIOS Setup Program

This motherboard supports a programmable EEPROM that can be updated using the provided utility as described in 4.1 Managing and Updating Your BIOS. The utility is used if you are installing a motherboard, reconfiguring your system, or prompted to Run Setup. This section describes how to configure your system using this utility. Even if you are not prompted to use the Setup program, at some time in the future you may want to change the configuration of your computer. For example, you may want to enable the Security Password Feature or make changes to the power management settings. It will then be necessary to reconfigure your system using the BIOS Setup program so that the computer can recognize these changes and record them in the CMOS RAM of the EEPROM. The EEPROM on the motherboard stores the Setup utility. When you start up the computer, the system provides you with the opportunity to run this program. This appears during the Power-On Self Test (POST). Press <Delete> to call up the Setup utility. If you are a little bit late in pressing the mentioned key, POST will continue with its test routines, thus preventing you from calling up Setup. If you still need to call Setup, restart the system by pressing <Ctrl> + <Alt> + <Delete>, or by pressing the Reset button on the system chassis. You can also restart by turning the system off and then back on again. But do so only if the first two methods fail. The Setup program has been designed to make it as easy to use as possible. It is a menu-driven program, which means you can scroll through the various sub-menus and make your selections among the predetermined choices. To access the BIOS Setup program, press the <Delete> key after the computer has run through its POST. NOTE: Because the BIOS software is constantly being updated, the following BIOS screens and descriptions are for reference purposes only and may not reflect your BIOS screens exactly.

Program Information

3. H/W SETUP Program Information

4.2.1 BIOS Menu Bar

The top of the screen has a menu bar with the following selections: MAIN Use this menu to make changes to the basic system configuration. ADVANCED Use this menu to enable and make changes to the advanced features. POWER Use this menu to configure and enable Power Management features. BOOT Use this menu to configure the default system device used to locate and load the Operating System. EXIT Use this menu to exit the current menu or specify how to exit the Setup program. To access the menu bar items, press the right or left arrow key on the keyboard until the desired item is highlighted.

4.2.2 Legend Bar

At the bottom of the Setup screen you will notice a legend bar. The keys in the legend bar allow you to navigate through the various setup menus. The following table lists the keys found in the legend bar with their corresponding alternates and functions.
<Esc> or (keypad arrow) or (keypad arrow) - (minus key) + (plus key) or spacebar <Enter> <Home> or <PgUp> <End> or <PgDn> <F5> <F10>
Moves the cursor to the first field Moves the cursor to the last field Resets the current screen to its Setup Defaults Saves changes and exits Setup
4. BIOS SETUP Menu Introduction
Navigation Key(s) <F1> or <Alt + H>
Function Description Displays the General Help screen from anywhere in the BIOS Setup Jumps to the Exit menu or returns to the main menu from a sub-menu Selects the menu item to the left or right Moves the highlight up or down between fields Scrolls backward through the values for the highlighted field Scrolls forward through the values for the highlighted field Brings up a selection menu for the highlighted field

Menu Introduction

General Help
In addition to the Item Specific Help window, the BIOS setup program also provides a General Help screen. This screen can be called up from any menu by simply pressing <F1> or the <Alt> + <H> combination. The General Help screen lists the legend keys with their corresponding alternates and functions.
Saving Changes and Exiting the Setup Program
See 4.7 Exit Menu for detailed information on saving changes and exiting the setup program.

Scroll Bar

When a scroll bar appears to the right of a help window, it indicates that there is more information to be displayed that will not fit in the window. Use <PgUp> and <PgDn> or the up and down arrow keys to scroll through the entire help document. Press <Home> to display the first page, press <End> to go to the last page. To exit the help window, press <Enter> or <Esc>.

Sub-Menu

Note that a right pointer symbol (as shown in the left view) appears to the left of certain fields. This pointer indicates that a sub-menu can be launched from this field. A sub-menu contains additional options for a field parameter. To call up a submenu, simply move the highlight to the field and press <Enter>. The sub-menu will then immediately appear. Use the legend keys to enter values and move from field to field within a sub-menu just as you would within a menu. Use the <Esc> key to return to the main menu. Take some time to familiarize yourself with each of the legend keys and their corresponding functions. Practice navigating through the various menus and sub-menus. If you accidentally make unwanted changes to any of the fields, use the set default hot key <F5>. While moving around through the Setup program, note that explanations appear in the Item Specific Help window located to the right of each menu. This window displays the help text for the currently highlighted field. NOTE: The item heading in square brackets represents the default setting for that field.

4.3 Main Menu

When the Setup program is accessed, the following screen appears:
System Date [XX/XX/XXXX] Sets your system to the date that you specify (usually the current date). The format is month, day, year. Valid values for month, day, and year are Month: (1 to 12), Day: (1 to 31), Year: (100 year range). Use the <Tab> or <Shift> + <Tab> keys to move between the month, day, and year fields. Legacy Diskette A [1.44M, 3.5 in.], Legacy Diskette B [None] Sets the type of floppy drives installed. Configuration options: [None] [360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.] Floppy 3 Mode Support [Disabled] This is required to support older Japanese floppy drives. Floppy 3 Mode support will allow reading and writing of 1.2MB (as opposed to 1.44MB) on a 3.5inch diskette. Configuration options: [Disabled] [Enabled]

4. BIOS SETUP Main Menu

System Time [XX:XX:XX] Sets your system to the time that you specify (usually the current time). The format is hour, minute, second. Valid values for hour, minute and second are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use the <Tab> or <Shift> + <Tab> keys to move between the hour, minute, and second fields.

Main Menu

4.3.1 Primary & Secondary Master/Slave
NOTE: Before attempting to configure a hard disk drive, make sure you have the configuration information supplied by the manufacturer of the drive. Incorrect settings may cause your system to not recognize the installed hard disk. To allow the BIOS to detect the drive type automatically, select [Auto].
NOTE: After the IDE hard disk drive information has been entered into BIOS, new IDE hard disk drives must be partitioned (such as with FDISK) and then formatted before data can be read from and write on. Primary IDE hard disk drives must have its partition set to active (also possible with FDISK). Other options for the Type field are: [None] - to disable IDE devices

System Hangup If your system crashes or hangs due to improper frequency settings, power OFF your system and restart. The system will start up in safe mode running and enter BIOS setup.
4. BIOS SETUP System Hangup

JumperFree Mode

4.4.1 Chip Configuration
RDRAM Pool B State [Standby] This sets the operating state of the RDRAM devices in Pool B. Selecting [Nap] allows the RDRAM in Pool B to enter power-saving mode. [Standby] allows the RDRAM in Pool B to return to the working state quickly. Configuration options: [Standby] [Nap]
4. BIOS SETUP Chip Configuration
AGP Fast-Write [Enabled] This controls the AGP fast-write function. Configuration options: [Enabled] [Disabled] Graphics Window Size [64MB] This feature allows you to select the size of mapped memory for AGP graphic data. Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB] [128MB] [256MB] Video Memory Cache Mode [UC] USWC (uncacheable, speculative write combining) is a new cache technology for the video memory of the processor. It can greatly improve the display speed by caching the display data. You must set this to UC (uncacheable) if your display card cannot support this feature; otherwise your system may not boot. Configuration options: [UC] [USWC]
Memory Hole At 15M-16M [Disabled] This field allows you to reserve an address space for ISA expansion cards that require it. Setting the address space to a particular setting will make that memory space unavailable to the system. Expansion cards can only access memory up to 16MB. Configuration options: [Disabled] [Enabled] PCI 2.1 Support [Enabled] This function allows you to enable or disable PCI 2.1 features including passive release and delayed transaction. Configuration options: [Disabled] [Enabled] Onboard PCI IDE Enable [Both] You can select to enable the primary IDE channel, secondary IDE channel, both, or disable both channels. Configuration options: [Both] [Primary] [Secondary] [Disabled]
4.4.2 I/O Device Configuration
Onboard AC97 Controller [Auto] The motherboard offers an AC97 Audio Controller chip. BIOS will automatically activate the Audio Controller if it is available. Configuration options; [Auto] [Disabled] Onboard Lan Controller [Enabled] (only on model with LAN) This motherboard features an integrated LAN controller. If you want to use it, leave it on the default setting. If you want to use an add-on LAN card, select [Disabled]. Configuration options; [Disabled] [Enabled] NOTE: To disable the integrated LAN controller, you must first set this field to [Disable], shut down your system, and then restart. Onboard FDC Swap A&B [No Swap] This option selects drive letter assignments. Configuration options; [No Swap] [Swap AB] Floppy Disk Access Control [R/W] When set to [Read Only], this field protects files from being copied to floppy disks by allowing reads from the floppy disk drive but not writes. The setup default [R/W] allows both reads and writes. Configuration options: [R/W] [Read Only] Onboard Serial Port 1 [3F8H/IRQ4], Onboard Serial Port 2 [2F8H/IRQ3] These fields allow you to set the addresses for the onboard serial connectors. Serial Port 1 and Serial Port 2 must have different addresses. Configuration options: [3F8H/ IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/IRQ10] [Disabled]

4. BIOS SETUP I/O Device Config
UART2 Use Standard Infrared [Disabled] When enabled, this field activates the onboard standard infrared feature and sets the second serial UART to support the infrared module connector on the motherboard. If your system already has a second serial port connected to the onboard COM2 connector, it will no longer work if you enable the infrared feature. See IrDA-Compliant Infrared Module Connector in 3.8 External Connectors. Configuration options: [Disabled] [Enabled] Onboard Parallel Port [378H/IRQ7] This field sets the address of the onboard parallel port connector. If you disable this feature, Parallel Port Mode and ECP DMA Select configurations will not be available. Configuration options: [Disabled] [378H/IRQ7] [278H/IRQ5] Parallel Port Mode [ECP+EPP] This field allows you to set the operation mode of the parallel port. [Normal] allows normal-speed operation but in one direction only; [EPP] allows bidirectional parallel port operation; [ECP] allows the parallel port to operate in bidirectional DMA mode; [ECP+EPP] allows normal speed operation in a two-way mode. Configuration options: [Normal] [EPP] [ECP] [ECP+EPP] ECP DMA Select [3] This field allows you to configure the parallel port DMA channel for the selected ECP mode. This selection is available only if you select [ECP] or [ECP+EPP] in Parallel Port Mode above. Configuration options: [1] [3] Onboard Game Port [200H-207H] This field sets the I/O address to the game port. Configuration options; [200H207H] [208H-20FH] Onboard MIDI I/O [330H-331H] This field sets the I/O address and IRQ for MIDI. Configuration options; [330H331H] [300H-301H] Onboard MIDI IRQ [10] This field indicates the onboard IRQ assignment for MIDI. Configuration options; [3 ,4, 5, 7, 9, 10, 11, 12, 14, 15]

4.4.3 PCI Configuration

Slot 1 IRQ, Slot 2 IRQ, Slot 3 IRQ [Auto] These fields set how IRQ use is determined for each PCI slot. The default setting for each field is [Auto], which utilizes auto-routing to determine IRQ use. Configuration options: [Auto] [NA] [3] [4] [5] [7] [9] [10] [11] [12] [14] [15] PCI/VGA Palette Snoop [Disabled] Some nonstandard VGA cards, such as graphics accelerators or MPEG video cards, may not show colors properly. The setting [Enabled] should correct this problem. Otherwise, leave this on the default setting of [Disabled]. Configuration options: [Disabled] [Enabled] PCI Latency Timer [32] Leave on default setting for best performance vs. stability. USB Function [Enabled] This motherboard supports Universal Serial Bus (USB) devices. Set to [Enabled] if you want to use USB devices. Configuration options: [Disabled] [Enabled] Primary VGA BIOS [PCI Card] If your computer has both PCI and AGP VGA cards, this field allows you to select which of the cards will act as your primary graphics card. [AGP Card] uses the AGP card as your primary card. The default, [PCI Card], allows your PCI graphics card to take precedence when detected. Configuration options: [PCI Card] [AGP Card] Onboard LAN Boot ROM [Disabled] Configuration options; [Disabled] [Enabled]

4. BIOS SETUP PCI Configuration
PCI IRQ Resource Exclusion (submenu)
IRQ XX Reserved for Legacy Device [No/ICU] These fields indicate whether or not the displayed IRQ for each field is being used by an onboard legacy (non-PnP) device. The default value indicates either that the displayed IRQ is not used or that the ISA Configuration Utility (ICU) is being used to determine if a legacy device is using that IRQ. If the IRQ is required by a legacy device, then reserce the IRQ by selecting [Yes]. Otherwise, select [No/ICU] to release the IRQ to OS. Configuration options: [No/ICU] [Yes]
4.4.4 Shadow Configuration
Video ROM BIOS Shadow [Enabled] This field allows you to change the video BIOS location from ROM to RAM. Relocating to RAM enhances system performance, as information access is faster than the ROM. Configuration options: [Disabled] [Enabled] C8000-DFFFF Shadow [Disabled] These fields are used for shadowing other expansion card ROMs. If you install other expansion cards with ROMs on them, you will need to know which addresses the ROMs use to shadow them specifically. Shadowing a ROM reduces the memory available between 640K and 1024K by the amount used for this purpose. Configuration options: [Disabled] [Enabled]
4. BIOS SETUP Shadow Configuration

4.5 Power Menu

The Power menu allows you to reduce power consumption. This feature turns off the video display and shuts down the hard disk after a period of inactivity.
This field acts as the master control for the power management modes. [Max Saving] puts the system into power saving mode after a brief period of system inactivity; [Min Saving] is almost the same as [Max Saving] except that the system inactivity period is longer; [Disabled] disables the power saving features; [User Define] allows you to set power saving options according to your preference. Configuration options: [User Define] [Disabled] [Min Saving] [Max Saving] IMPORTANT: Advanced Power Management (APM) should be installed to keep the system time updated when the computer enters suspend mode activated by the BIOS Power Management. For DOS environments, you need to add the statement, DEVICE=C:\DOS\POWER.EXE, to your CONFIG.SYS file. For Windows 3.x and Windows 95, you need to install Windows with the APM feature. For Windows 98 and later, APM is automatically installed. A battery and power cord icon labeled Power Management will appear in the Control Panel. Choose Advanced in the Power Management Properties dialog box. ASUS P4T-M Users Manual 61

4. BIOS SETUP Boot Menu

Hardware Monitor
Plug & Play O/S [No] This field allows you to use a Plug-and-Play (PnP) operating system to configure the PCI bus slots instead of using the BIOS. When [Yes] is selected, interrupts may be reassigned by the OS. When a non-PnP OS is installed or you want to prevent reassigning of interrupt settings, select the default setting of [No]. Configuration options: [No] [Yes] Boot Virus Detection [Enabled] This field allows you to set boot virus detection, ensuring a virus-free boot sector. The system halts and displays a warning message when it detects a virus. If this occurs, you can either allow the operation to continue or use a virus-free bootable floppy disk to restart and investigate your system. Configuration options: [Disabled] [Enabled] Quick Power On Self Test [Enabled] This field speeds up the Power-On-Self Test (POST) routine by skipping retesting a second, third, and fourth time. Configuration options: [Disabled] [Enabled] Boot Up Floppy Seek [Enabled] When enabled, the BIOS will seek the floppy disk drive to determine whether the drive has 40 or 80 tracks. Configuration options: [Disabled] [Enabled]
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Boot Menu

4.7 Exit Menu
Once you have made all of your selections from the various menus in the Setup program, you should save your changes and exit Setup. Select Exit from the menu bar to display the following menu:
NOTE: Pressing <Esc> does not exit this menu. You must select one of the options from this menu or <F10> from the legend bar to exit this menu.

Exit Saving Changes

Once you are finished making your selections, choose this option from the Exit menu to ensure the values you selected are saved to the CMOS RAM. The CMOS RAM is sustained by an onboard backup battery and stays on even when the PC is turned off. Once this option is selected, a confirmation is asked. Select [Yes] to save changes and exit. NOTE: If you attempt to exit the Setup program without saving your changes, the program will prompt you with a message asking if you want to save your changes before exiting. Pressing <Enter> will then save changes while exiting.

Exit Discarding Changes

This option should only be used if you do not want to save the changes you have made to the Setup program. If you have made changes to fields other than system date, system time, and password, the system will ask for confirmation before exiting.

4. BIOS SETUP Exit Menu

Load Setup Defaults
This option allows you to load the default values for each of the parameters on the Setup menus. When this option is selected or if <F5> is pressed, a confirmation is requested. Select [Yes] to load default values. You can now select Exit Saving Changes or make other changes before saving the values to the non-volatile RAM.

A type of RAM that requires refresh cycles to prevent the loss of the data stored in it.
There are several different types of DRAM such as, EDO DRAM (Extended Data Output DRAM), SDRAM (Synchronous DRAM), and RDRAM (Rambus DRAM) and DDR DRAM, (Double-Data Rate DRAM). Flash ROM non-volatile memory device that retains its data even when power is removed. This device is similar to EPROM, but unlike EPROM which can be erased only using an ultra-violet light, flash ROM can be electrically erased. Flash ROM is normally used for system BIOS, which initiates hardware devices and sets up necessary parameters for the OS. Since the flash ROM contents can be modified, users can easily update the BIOS.
IDE (Integrated Drive Electronics) IDE devices integrate the drive control circuitry directly on the drive itself, eliminating the need for a separate adapter card (in the case for SCSI devices). UltraDMA/33 IDE devices can achieve up to 33MB/Sec transfer. I/O (Input/Output) The data transfers from the input devices like a keyboard, mouse, or scanner, to the output devices like a printer or the monitor screen. I/O Address The specific memory location for a particular device. Two devices cannot share the same I/O address space. IrDA (Infrared Data Association) An internaltional organization that creates and promotes inter-operable, low cost, infrared data interconnection standards that support a walk-up, point-to-point model. The IrDA protocol is designed to support transmission of data between two devices over short-range pointto-point infrared at speeds between 9.6Kbps and 4Mbps. ISP (Internet Service Provider) A company that provides customer access to the Internet and the World Wide Web for a fee. The ISP also provides Internet utilities and services like e-mail, newsgroup, weather reports, and a host of others. The user can connect to the ISP using a modem installed in the computer and connected to a phone line. LPT Port (Line Printer Port) Logical device name reserved by DOS for the computer parallel ports. Each LPT port is configured to use a different IRQ and address assignment. MMX A set of 57 new instructions designed to accelerate multimedia and communications applications, such as 3D video, 3D sound, video conference. Modem A device that allows a computer to talk to another computer through the phone system. Network An interconnected computer system linked by telephone wires, or other means. OnNow The OnNow design initiative is a comprehensive, system-wide approach to system and device power control. OnNow is a term for PC that is always ON but appears OFF and responds immediately to user or other requests. The OnNow design initiative involves changes that will occur in the Microsoft Windows operating system, device drivers, hardware, and applications, and also relies on the changes defined in the Advanced Configuration and Power Interface (ACPI) specification. PC100/133 This is an industry-standard designation for memory capacity as a measure of the speed of the memory bus. New platform requirements ensure that memory does not become a bottleneck to system performance. PCI Bus (Peripheral Component Interconnect Local Bus) PCI bus is a standard specification that defines a 32-bit data bus interface. PCI Bus Master The PCI Bus Master can perform data transfer without local CPU help and the CPU can be treated as one of the Bus Masters. PCI 2.1 supports concurrent PCI operation to allow the local CPU and bus master to work simultaneously. POST (Power On Self Test) Powering on the computer initiates the POST, a series of software-controlled diagnostic tests. The POST checks system memory, the motherboard circuitry, the display, the keyboard, the diskette drive, and other I/O devices

PS/2 Port PS/2 ports are based on IBM Micro Channel Architecture. This type of architecture transfers data through a 16-bit or 32-bit bus. A PS/2 mouse and/or keyboard may be used on ATX motherboards. RDRAM (Rambus DRAM) Developed by Rambus, Inc., this type of memory can deliver up to 1.6GB of data per second. RDRAM is the first interface standard that can be directly implemented on high performance VLSI components such as, CMOS DRAMs, memory controllers, and graphics/video ICs. RAM (Random Access Memory). The computers primary storage area used to write, store, and retrieve information and program instructions which are passed to the CPU for processing. The information in RAM can be repeatedly re-written with new data. Compared to other storage media like magnetic tape, floppy disk, and hard disk, RAM has an extraordinarily fast access rate. RAM, however, is volatile, which means that the data stored in it are lost when the system power is turned off, or if power glitches occur. See also DRAM and SDRAM. ROM (Read Only Memory) ROM is nonvolatile memory used to store permanent programs (called firmware) used in certain computer components. Flash ROM (or EEPROM) can be reprogrammed with new programs (or BIOS). SCSI (Small Computer System Interface) High speed multi-threaded I/O interface defined by the X3T9.2 committee of the American National Standards Institute (ANSI) for connecting many peripheral devices. The standard started from 10MBytes/sec to 160MBytes/sec available today. SDRAM (Synchronous DRAM) A type of DRAM with access signals that are synchronized with the CPU clock, eliminating the delay associated with data transfers between the CPU and memory. SDRAM takes memory access away from the CPU control; internal registers in the memory accept the request, and lets the CPU do something else while the data requested is assembled for the next time the CPU talks to the memory. SPD for SDRAM module Serial Presence Detect (SPD) is most like an ID detect for SDRAM module, it using a EEPROM component on DIMM module for storing module configuration information inside. The Serial Presence Detect function is implemented using a 2048 bit EEPROM component. This nonvolatile storage device contains data programmed by the DIMM manufacturer that identifies the module type and various SDRAM organization and timing parameters. System Disk A system disk contains the core file of an operating system that boots up the operating system. TCP/IP (Transmission Control Protocol/Internet Protocol). The communications protocol used by the UNIX system and the Internet. TCP checks for lost packets, puts the data from multiple packets into the correct order, and requests that missing or damaged packets be resent. USB (Universal Serial Bus) A 4-pin serial cable bus that allows up to 127 plug and play computer peripherals such as keyboard, mouse, joystick, scanner, printer, modem, and monitor to share a bandwidth through a host scheduled token based protocol. This allows attaching or detaching while the host and other peripherals are in operation. Supports synchronous and asynchronous transfer types over the same set of wires up to 12Mbit/sec. USB 2.0 provides twice the transfer rate compared to USB 1.0 and competes with the 1394 standard. Wake-On-LAN Computer will automatically wake-up upon receiving a wake-up packet through a Network interface when it is under power soft-off, suspend or sleep mode.