OFF Power OFF or Soft-Off Mode

Power ON or Sleep Mode

P4B-LX Onboard LED

Figure 2-3

Onboard Power LED
Central Processing Unit (CPU)

2.4.1 Overview

The motherboard comes with a surface mount 478-pin Zero Insertion Force (ZIF) socket. This socket is specifically designed for the Intel Pentium 4 478/Northwood Processor. The Intel Pentium 4 Processor in the 478-pin package uses the Flip-Chip Pin Grid Array 2 (FC-PGA2) package technology, and includes the Intel NetBurst micro-architecture. The Intel NetBurst micro-architecture features the hyper-pipelined technology, rapid execution engine, 400MHz system bus, and execution trace cache. Together, these attributes improve system performance by allowing higher processor frequencies, faster execution of integer instructions, and an FSB data transfer rate of 3.2GB/s.

Gold Mark

Figure 2-4
Intel Pentium 4 478/Northwood Processor
Note in the illustration that the CPU has a gold triangular mark on one corner. This mark indicates the processor Pin 1 that should match a specific corner of the CPU socket.
Incorrect installation of the CPU into the socket may bend the pins and severely damage the CPU!

2.4.2 Installing the CPU

Follow these steps to install a CPU. 1. Locate the 478-pin ZIF socket on the motherboard.

Figure 2-5

Intel 478-pin ZIF Socket
2. Unlock the socket by pressing the lever sideways, then lift it up to a 90-100 angle.

Socket Lever

90 - 100

Figure 2-6

CPU Socket Lever at 90 -100 Angle
Make sure that the socket lever is lifted up to 90-100 angle, otherwise the CPU does not fit in completely.
3. Position the CPU above the socket such that its marked corner matches the base of the socket lever. 4. Carefully insert the CPU into the socket until it fits in place.
The CPU fits only in one correct orientation. DO NOT force the CPU into the socket to prevent bending the pins and damaging the CPU!

Figure 2-7

Installing the CPU
5. When the CPU is in place, press it firmly on the socket while you push down the socket lever to secure the CPU. The lever clicks on the side tab to indicate that it is locked.

Figure 2-8

Installed CPU
2.4.3 Installing the heatsink and fan
The Intel Pentium 4 478/Northwood Processor requires a specially designed heatsink and fan assembly to ensure optimum thermal condition and performance.
When you buy a boxed Intel Pentium 4 478/Northwood Processor, the package includes the heatsink, fan, and retention mechanism. In case you buy a CPU separately, make sure that you use only Intel certified heatsink and fan.
Follow these steps to install the CPU heatsink and fan. 1. Place the heatsink on top of the installed CPU, making sure that the heatsink fits properly on the retention module base.

The retention module base is already installed on the motherboard.

CPU Heatsink

Figure 2-9
Installing the CPU Heatsink
Your boxed Intel Pentium 4 478/Northwood Processor package should come with installation instructions for the CPU, heatsink, and the retention mechanism. If the instructions in this section do not match the CPU documentation, follow the latter.
2. Position the fan with the retention mechanism on top of the heatsink. Align and snap the four hooks of the retention mechanism to the holes on each corner of the module base.
Make sure that the fan and retention mechanism assembly perfectly fits the heatsink and module base, otherwise you cannot snap the hooks into the holes.
Retention Hole Retention Lock
Retention Hook Snapped to the Retention Hole

Figure 2-10

Installing the Fan and Retention Mechanism
Keep the retention locks lifted upward while fitting the retention mechanism to the module base.
3. Push down the locks on the retention mechanism to secure the heatsink and fan to the module base.
When secure, the retention locks should point to opposite directions.

Figure 2-11

Fan and Retention Mechanism Installed and Locked
2.4.4 Connecting the CPU fan cable
When the fan, heatsink, and the retention mechanism are in place, connect the CPU fan cable to the connector on the motherboard labeled CPU_FAN.
CPU Fan Connector (CPU_FAN)

Figure 2-12

CPU Fan Connector

System memory

2.5.1 Overview
The motherboard comes with two Single Data Rate (SDR) Dual Inline Memory Module (DIMM) sockets. These sockets support up to 2GB system memory using unbuffered ECC or non-ECC PC100/133 DIMMs.

88 Pins

60 Pins 20 Pins
P4B-LX 168-Pin DIMM Sockets

Figure 2-13

DIMM Sockets Location and SDR DIMMs
DIMMs are keyed with notches so that they fit in only one direction. DO NOT force a DIMM into a socket to avoid damaging the DIMM.
2.5.2 Memory configurations
Install DIMMs in any of the following combinations.
DIMM Location Socket 1 (Rows 0&1) Socket 2 (Rows 2&3) 168-pin DIMM (SDR) 64MB, 128MB, 256MB, 512MB, 1GB x1 64MB, 128MB, 256MB, 512MB, 1GB x1 = Total Memory
Total system memory (Max. 2GB)

2.5.3 Installing a DIMM

Make sure to unplug the power supply before adding or removing DIMMs or other system components. Failure to do so may cause severe damage to both the motherboard and the components.
Follow these steps to install a DIMM. 1. Unlock a DIMM socket by pressing the retaining clips outward. 2. Align a DIMM on the socket such that the notches on the DIMM match the breaks on the socket. 3. Firmly insert the DIMM into the socket until the retaining clips snap back in place and the DIMM is properly seated.

*These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
A PCI slot 1 PCI slot 2 PCI slot 3 Onboard USB controller HC0 Onboard USB controller HC1 AGP used Onboard Audio Onboard LAN Onboard 1394 B used C used D used E used F used G H used shared shared
When using PCI cards on shared slots, ensure that the drivers support Share IRQ or that the cards do not need IRQ assignments. Otherwise, conflicts will arise between the two PCI groups, making the system unstable and the card inoperable.

2.6.3 PCI slots

This motherboard has three 32-bit PCI slots. The slots support PCI cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. The following figure shows a LAN card installed on a PCI slot.

Figure 2-18

Installed PCI Card

2.6.4 AGP slot

This motherboard has an Accelerated Graphics Port (AGP) slot that supports +1.5V AGP cards. When you buy an AGP card, make sure that you ask for one with +1.5V specification. Take note of the notches on the card golden fingers to ensure that they fit the AGP slot on your motherboard. Below is an example of a +1.5V AGP card.
The AGP slot supports only 1.5V AGP cards. NEVER install a 3.3V AGP card into the slot. Doing so will severely damage the motherboard!

Keyed for 1.5v

P4B-LX Accelerated Graphics Port (AGP)

Figure 2-19

Accelerated Graphics Port (AGP) Slot Location

Jumper

Clear RTC RAM (CLR_CMOS)
This jumper allows you to clear the Real Time Clock (RTC) RAM in CMOS. You can clear the CMOS memory of date, time, and system setup parameters by erasing the CMOS RTC RAM data. The RAM data in CMOS, that include system setup information such as system passwords, is powered by the onboard button cell battery. To erase the RTC RAM: 1. Turn OFF the computer and unplug the power cord. 2. Remove the battery. 3. Short the jumper by placing the jumper cap to pins 1-2 for a few seconds. 4. Replace the jumper cap to pins 2-3. 5. Re-install the battery. 6. Plug the power cord and turn ON the computer. 7. Hold down the <Del> key during the boot process and enter BIOS setup to re-enter data.

CLR_CMOS

Normal

Clear CMOS

P4B-LX Clear RTC RAM

Figure 2-20

Clear RTC RAM

Connectors

This section describes and illustrates the internal connectors on the motherboard.
Do not place jumper caps over connector pins. Doing so may damage your motherboard.
Always connect ribbon cables with the red stripe to Pin 1 on the connectors. Pin 1 is usually on the side closest to the power connector on hard drives and CD-ROM drives, but may be on the opposite side on floppy disk drives.

8-pin Connector 6-pin Connector
Ground Ground TPA2+ TPA2TPB2+ TPB2Ground +12V
+12V Ground TPB2TPB2+ TPA2TPA2+ Ground Ground

P4B-LX IEEE-1394 Headers

Figure 2-27
8. System panel connectors (20-pin PANEL) This connector accommodates several system front panel functions.

KEYLOCK

SUSLED

EXTSMI IDELED2

Speaker Connector

PWR_BTN PWR_BTN_G

P4B-LX System Panel Connectors

PWRBTN IDELED

* Requires an ATX power supply.

Figure 2-28

System Panel Connectors
System Power LED Lead (3-1 pin PWRLED) This 3-1 pin connector connects to the system power LED. The LED lights up when you turn on the system power, and blinks when the system is in sleep mode. Keyboard Lock Lead (2-pin KEYLOCK) This lead connects to a chassis-mounted switch to allow the use of the keyboard lock feature. System Warning Speaker Lead (2-pin SPKR) This 4-pin connector connects to the case-mounted speaker and allows you to hear system beeps and warnings. System Message LED Lead (2-pin SUSLED) This 2-pin connector is for the system message LED that indicates receipt of messages from a fax/modem. The normal status for this LED is ON, when there is no incoming data signal. The LED blinks when data is received. The system message LED feature requires an ACPI OS and driver support.
PWR_LED+ PWR_LEDPWR_LED2RESET RESET_G

IDELEDIDELED+

MSG_LED+ MSG_LEDKEY_LOCK KEY_LOCK_G SMI SMI_G +5V NC GND SPKR

RESETCON

PWRLED
System Management Interrupt Lead (2-pin EXTSMI) This 2-pin connector allows you to manually place the system into a suspend mode, or green mode, where system activity is instantly decreased to save power and to expand the life of certain system components. Attach the case-mounted suspend switch to this 2-pin connector. ATX Power Switch / Soft-Off Switch Lead (2-pin PWRBTN) This connector connects a switch that controls the system power. Pressing the power switch turns the system between ON and SLEEP, or ON and SOFT OFF, depending on the BIOS or OS settings. Pressing the power switch while in the ON mode for more than 4 seconds turns the system OFF. Reset Switch Lead (2-pin RESETCON) This 2-pin connector connects to the case-mounted reset switch for rebooting the system without turning off the system power.

Chapter 3

This chapter describes the power up sequence and gives information on the BIOS beep codes.

Powering up

Starting up for the first time
1. After making all the connections, replace the system case cover. 2. Be sure that all switches are off. 3. Connect the power cord to the power connector at the back of the system chassis. 4. Connect the power cord to a power outlet that is equipped with a surge protector. 5. Turn on the devices in the following order: a. Monitor b. External SCSI devices (starting with the last device on the chain) c. System power (if you are using an ATX power supply, you need to switch on the power supply as well as press the ATX power switch on the front of the chassis). 6. After applying power, the power LED on the system front panel case lights up. For ATX power supplies, the system LED lights up when you press the ATX power switch. If your monitor complies with green standards or if it has a power standby feature, the monitor LED may light up or switch between orange and green after the system LED turns on. The system then runs the power-on tests. While the tests are running, the BIOS beeps or additional messages appear on the screen. If you do not see anything within 30 seconds from the time you turned on the power, the system may have failed a power-on test. Check the jumper settings and connections or call your retailer for assistance.

Because the BIOS software is constantly being updated, the following BIOS setup screens and descriptions are for reference purposes only, and may not exactly match what you see on your screen.

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 BOOT EXIT Use this menu to configure and enable Power Management features. Use this menu to configure the default system device used to locate and load the Operating System. Use this menu to exit the current menu or 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 is 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 functions. Navigation Key(s)
<F1> or <Alt + H> <Esc> Left or Right arrow Up or Down arrow - (minus key)

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
+ (plus key) or spacebar Scrolls forward through the values for the highlighted field <Enter> <Home> or <PgUp> <End> or <PgDn> <F5> <F10> Brings up a selection menu for the highlighted field 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

General help

In addition to the Item Specific Help window, the BIOS setup program also provides a General Help screen. You may launch this screen from any menu by simply pressing <F1> or the <Alt> + <H> combination. The General Help screen lists the legend keys and their corresponding functions.
Saving changes and exiting the Setup program
See 4.7 Exit Menu for detailed information on saving changes and exiting the setup program.

Type [Auto]

Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection is successful, Setup automatically fills in the correct values for the remaining fields on this sub-menu. If automatic detection fails, this may be because the hard disk drive is too old or too new. If the hard disk was already formatted on an older system, Setup may detect incorrect parameters. In these cases, select [User Type HDD] to manually enter the IDE hard disk drive parameters. Refer to the next section for details.
Before attempting to configure a hard disk drive, make sure you have the correct configuration information supplied by the drive manufacturer. Incorrect settings may cause the system to fail to recognize the installed hard disk.

[User Type HDD]

Manually enter the number of cylinders, heads and sectors per track for the drive. Refer to the drive documentation or on the drive label for this information.
After entering the IDE hard disk drive information into BIOS, use a disk utility, such as FDISK, to partition and format new IDE hard disk drives. This is necessary so that you can write or read data from the hard disk. Make sure to set the partition of the Primary IDE hard disk drives to active.
If no drive is installed or if you are removing a drive and not replacing it, select [None]. Other options for the Type field are: [CD-ROM] - for IDE CD-ROM drives [LS-120] - for LS-120 compatible floppy disk drives [ZIP] - for ZIP-compatible disk drives [MO] - for IDE magneto optical disk drives [Other ATAPI Device] - for IDE devices not listed here After making your selections on this sub-menu, press the <Esc> key to return to the Main menu. When the Main menu appears, the hard disk drive field displays the size for the hard disk drive that you configured.

Translation Method [LBA]

Select the hard disk drive type in this field. When Logical Block Addressing (LBA) is enabled, the 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 more than 504MB storage capacity. Configuration options: [LBA] [LARGE] [Normal] [Match Partition Table] [Manual]

This field shows the frequency the clock generator sends to the system bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed. The setting of this field depends on the CPU Frequency Multiple.
CPU/Memory Frequency Ratio [Auto]
This field determines whether the memory clock frequency is set to be in synchronous or asynchronous mode with respect to the system frequency. The options that appear in the popup menu vary according to the CPU/PCI Frequency (MHz). Configuration options: [Auto] [1:1] [3:4] ASUS P4B-LX motherboard user guide 4-15
CPU Level 1 Cache, CPU Level 2 Cache [Enabled]
These fields allow you to choose from the default of [Enabled] or choose [Disabled] to turn on or off the CPU Level 1 and Level 2 built-in cache. Configuration options: [Disabled] [Enabled]

BIOS Update [Enabled]

This field functions as an update loader integrated into the BIOS to supply the processor with the required data. When set to [Enabled], the BIOS loads the update on all processors during system bootup. Configuration options: [Disabled] [Enabled]
PS/2 Mouse Function Control [Auto]
The default setting [Auto] allows the system to detect a PS/2 mouse at startup. If a mouse is detected, the BIOS assigns IRQ12 to the PS/2 mouse. Otherwise, IRQ12 can be used for expansion cards. When you set this field to [Enabled], BIOS reserves IRQ12, whether or not a PS/2 mouse is detected at startup. Configuration options: [Enabled] [Auto]
USB Legacy Support [Auto]
This motherboard supports Universal Serial Bus (USB) devices. The default of [Auto] allows the system to detect a USB device at startup. If detected, the USB controller legacy mode is enabled. If not detected, the USB controller legacy mode is disabled. When you set this field to [Disabled], the USB controller legacy mode is disabled whether or not you are using a USB device. Configuration options: [Disabled] [Enabled] [Auto]
OS/2 Onboard Memory > 64M [Disabled]
When using OS/2 operating systems with installed DRAM of greater than 64MB, you need to set this option to [Enabled]. Otherwise, leave to the default setting [Disabled]. Configuration options: [Disabled] [Enabled]

4.4.1 Chip Configuration

SDRAM Configuration [By SPD]
This parameter allows you to set the optimal timings for items 25, depending on the memory modules that you are using. The default setting is [By SPD], which configures items 25 by reading the contents in the SPD (Serial Presence Detect) device. The EEPROM on the memory module stores critical information about the module, such as memory type, size, speed, voltage interface, and module banks. Configuration options: [User Defined] [By SPD]

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.
Power Management [User Defined]
This field allows you to activate or deactivate the automatic power saving features. When set to [Disabled], the power management features do not function regardless of the other settings on this menu. The [User Defined] option allows you to set the period of inactivity before the system enters suspend mode. Refer to Suspend Mode later in this section. When set to [Max Saving], system power is conserved to its greatest amount. This setting automatically puts the system into suspend mode after a brief period of system inactivity. [Min Saving] allows the least power saving as the system enters suspend mode only after a long period of inactivity. Configuration options: [User Defined] [Disabled] [Min Saving] [Max Saving]
You should install the Advanced Power Management (APM) utility to keep the system time updated even when the computer enters suspend mode. In Windows 3.x and Windows 95, you need to install Windows with the APM feature. In Windows 98 or later, APM is automatically installed as indicated by a battery and power cord icon labeled Power Management in the Control Panel. Select the item Advanced in the Power Management Properties dialog box.
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 Display Power Management System (DPMS) 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.
Even if installed, your screen saver does not display when you select [Blank Screen] for the above field.
[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]
ACPI Suspend To RAM [Disabled]
This field allows you to enable or disable the ACPI Suspend-to-RAM feature. To support this feature, the +5VSB of the power supply should have the capacity to provide more than 720mA current. Configuration options: [Disabled] [Enabled]

Suspend Mode [Disabled]

Sets the time period before the system goes into suspend mode. Configuration options: [Disabled] [1~2 Min] [2~3 Min] [4~5 min] [8~9 Min] [20 Min] [30 Min]

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 puts the system in sleep mode. Regardless of the setting, holding the ATX switch for more than 4 seconds powers 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 or not to reboot the system after power interruptions. [Disabled] leaves your system off while [Enabled] reboots the system. [Previous State] sets the system back to the state it was before the power interruption. Configuration options: [Disabled] [Enabled] [Previous State]
Wake/Power Up On Ext. Modem [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. Configuration options: [Disabled] [Enabled]
The computer cannot receive or transmit data until the computer and applications are fully running. Turning an external modem off and then back on while the computer is off causes an initialization string that turns the system power on.
Power Up On PCI Card [Disabled]
When set to [Enabled], this item allows you to turn on the system through a PCI modem. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled]

Wake On LAN [Disabled]

When set to [Enabled], this item allows you to turn on the system through the onboard LAN. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled] 4-26 Chapter 4: BIOS Setup
Automatic Power Up [Disabled]
This allows an unattended or automatic system power up. You may configure your system to power up at a certain time of the day by selecting [Everyday], or at a certain time and day by selecting [By Date]. Configuration options: [Disabled] [Everyday] [By Date]

4.5.2 Hardware Monitor

MB Temperature [xxxC/xxxF] CPU Temperature [xxxC/xxxF]
The onboard hardware monitor automatically detects the MB (motherboard) and CPU temperatures.
CPU Fan Speed [xxxxRPM] or N/A Chassis Fan Speed [xxxxRPM] or N/A
The onboard hardware monitor automatically detects the CPU, system, and PCI fan speeds in rotations per minute (RPM). If any of the fans is not connected to the fan connectors on the motherboard, the specific field will show N/A.
VCORE Voltage, +3.3V Voltage, +5V Voltage, +12V Voltage
The onboard hardware monitor automatically detects the voltage output via the onboard voltage regulators and show the values on these fields.
If any of the monitored items is out of range, the following error message appears: Hardware Monitor found an error. Enter Power setup menu for details. You will then be prompted to Press F1 to continue or DEL to enter SETUP.

Boot Menu

Boot Sequence
The Boot menu allows you to select among the four possible types of boot devices listed using the up and down arrow keys. By using the <+> or <Space> key, you can promote devices and by using the <-> key, you can demote devices. Promotion or demotion of devices alters the priority which the system uses to search for a boot device on system power up. Configuration fields include Removable Devices, IDE Hard Drive, ATAPI CD-ROM, and Other Boot Device.
Removable Device [Legacy Floppy]
Configuration options: [Disabled] [Legacy Floppy] [LS-120] [ZIP] [ATAPI MO]

IDE Hard Drive

This field allows you to select which IDE hard disk drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all connected IDE hard disk drives.

ATAPI CD-ROM

This field allows you to select which ATAPI CD-ROM drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all your connected ATAPI CD-ROM drives.
Other Boot Device Select [INT18 Device (Network)]
Configuration options: [Disabled] [SCSI Boot Device] [INT18 Device (Network)] 4-28 Chapter 4: BIOS Setup

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. If you installed a nonPnP OS or if you want to prevent reassigning of interrupt settings, keep the default setting [No]. Configuration options: [No] [Yes]
Reset Configuration Data [No]
The Extended System Configuration Data (ESCD) contain information about non-PnP devices. It also holds the complete record of how the system was configured the last time is was booted. Select [Yes] if you want to clear these data during the Power-On-Self-Test (POST). Configuration options: [Disabled] [Enabled]
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]
Full Screen Logo [Enabled]
This allows you to enable or disable the full screen logo display feature. Configuration options: [Disabled] [Enabled]

Interrupt Mode [APIC]

The Advanced Programmable Interrupt Controller (APIC) setting allows you to distribute interrupt routings other than the 16 IRQs. The Programmable Interrupt Controller (PIC) setting allows you to use the 16 IRQs only. Configuration options: [PIC] [APIC]

Exit Menu

When you have made all of your selections from the various menus in the Setup program, save your changes and exit Setup. Select Exit from the menu bar to display the following menu.
Pressing <Esc> does not immediately exit this menu. Select one of the options from this menu or <F10> from the legend bar to exit.

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. When you select this option, a confirmation window appears. Select [Yes] to save changes and exit.
If you attempt to exit the Setup program without saving your changes, the program prompts you with a message asking if you want to save your changes before exiting. Pressing <Enter> saves the changes while exiting.

Exit Discarding Changes

Internet. The global computer network composed of WANs and LANs that uses TCP/IP to provide worldwide communications to homes, schools, businesses, and the government. 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 point-to-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. LAN (Local Area Network). A network technology designed to connect computers that are separated by a short distance. The local group of linked computers are normally connected to a single server. See also WAN (Wide Area Network) 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. OS (Operating System). The software that controls the overall operation of a computer system. The OS tasks include memory allocation, input and output distribution, interrupt processing, job scheduling, and various other duties. PC100/PC133. 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 specification that defines a 32-bit data bus interface. PCI is a standard widely used by expansion card manufacturers. PCI Bus Master. The PCI Bus Master can perform data transfer without local CPU help and furthermore, 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). When you turn ON the computer, it will first run through 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. 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). An integrated circuit chip containing program and data that can be accessed and read but not modified. 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 covers 10MBytes/sec to 160MBytes/sec data rates. 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. SIR (Serial IrDA). A SIR specification defines a short-range infrared asynchronous serial transmission mode with one stat bit, eight data bits and one stop bit. The maximum data rate is 115.2Kbps.

Central Processing Unit (CPU) 2-4 CPU socket 1-3 fan connector 2-9 installation 2-5 Level 1/Level 2 Cache 4-16 Speed 4-15 Chip Configuration 4-17 Clear RTC RAM 2-19
Flash EEPROM 1-4 Floppy 3 Mode 4-8
Hard Disk Drives (HDDs) CHS Capacity 4-11 Cylinders 4-11 Heads 4-11 LBA Capacity 4-11 Primary/Secondary Master 4-9 Primary/Secondary Slave 4-9 Sectors 4-11 Types 4-9 Hardware Monitor 4- 27 Heatsink installation 2-7 Heatsink retention module 1-5
Motherboard components 1-2 IRQ Table 2-14 layout 2-2 placement 2-1 screws 2-1 Multi-Sector Transfers 4-11
Onboard LED 2-3 Operating system installation 5-1
IEEE 1394 1-4, 2-21 Interrupt Assignments 2-14 IRQ assignments 2-14
Parallel Port 1-5, 4-20 Modes 4-20 Password Supervisor 4-14 User 4-14 PC-cillin 5-4 PCI Configuration 4-21 PCI Latency Timer 4-21 PCI/VGA Palette Snoop 4-21 PIO Mode 4-12 Plug & Play O/S 4-29 Power Management 4-24 Power On Self Test 4-29 Powering off 3-2 PS/2 Keyboard Port 1-5 PS/2 Mouse Function Control 4-16 PS/2 Mouse Port 1-5
Jumpers USB device wake-up 2-17
Keyboard Auto-Repeat Delay 4-13 Auto-Repeat Rate 4-13 Features 4-13
LAN controller 1-4 Legacy Diskette 4- 8
Retention Mechanism 2-8 RJ-45 port 1-5
SDRAM Active to Precharge Delay 4-18 CAS Latency 4-17 Configuration 4-17 RAS Precharge Delay 4-18 RAS to CAS Delay 4-17 Serial Ports 1-5, 4-19 SMART Monitoring 4-12 Starting up 3-1 Support CD 5-1 ASUS Update 5-3 DOS Utilities 5-6 Drivers menu 5-5 Main menu 5-2 Motherboard information 5-7 Readme file 5-8 Software menu 5-3 Technical Support Form 5-8 Welcome screen 5-1 Suspend Mode 4-25 System Controllers North Bridge 1-3 South Bridge 1-3 System Date 4-8 System memory configurations 2-10 System Time 4-8

Video Memory 4-19

ZIF socket 2-4
UART2 4-21 Ultra DMA Mode 4-12 USB Legacy Support 4-17 USB ports 1-5 USWC 4-18

PlusSOYOSYK7VEMProSOYOSYK7VIASOYOSYK7VLMBSOYOSYK7VTAProSOYO SYP4VAL(VersionM)SOYOSYP4VGASOYOSYTISUSupermicro370DDESupermicro 370SSA/370SSE/370SSM/370SSRSupermicroP3TSSE/P3TSSA/P3TSSRSupermicro P4SBA+/P4SBA/P4SBE/P4SBM/P4SBRSupermicroSuperServer5010E(SYS5010E0)Supermicro SuperServer5010H(SYS5010H0)SupermicroSuperServer5011E(SYS5011E0)Supermicro SuperServer5011H(SYS5011H0)SupermicroSuperServer5012B6(SYS5012B6)Supermicro SuperServer5012BE(SYS5012BE)TyanComputersTiger200T(S2505)/(S2505TDNGR)Tyan ComputersTiger230/Tiger230T(S2507D)/(S2507T)TyanComputersTrinity450 (S2507S)TyanComputersTrinityI845(S2090)TyanComputersTrinityK7(S2380)Tyan ComputersTrinityKT(S2390)TyanComputersTrinityKTA(S2390B). ProductDescription StorageCapacity UpgradeType
KingstonValueRAMmemory512MBDIMM168PINSDRAM

FormFactor

Technology MemorySpeed DataIntegrityCheck CASLatency Features

Generic SDRAM

512MB DIMM168PIN

133MHz(PC133)

NonECC CL3

Unbuffered 3.3V Gold

SupplyVoltage LeadPlating

ManufacturerWarranty

Limitedlifetimewarranty(Germany,AustriaandFrance10years)

ExtendedSpecs

General
StorageCapacity UpgradeType

512MB Generic

Memory

DRAM SDRAM DIMM168PIN

Technology ModuleHeight(inch) MemorySpeed CASLatency

1.15 133MHz(PC133) CL3

DataIntegrityCheck RAMFeatures
NonECC Unbuffered 64x64 3.3V Gold
ModuleConfiguration SupplyVoltage LeadPlating

Expansion/Connectivity

CompatibleSlots

1xmemoryDIMM168PIN

Service&ampSupport
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