BIOS setup program... 4-11.

Main menu... 4-14.

Advanced menu.. 4-19
4.4.2 4.4.3 4.4.4 4.4.6 4.5 4.5.1 4.5.2 4.5.3 4.5.4 4.5.5 4.5.6 4.6 4.6.1 4.6.2 4.6.3 4.7 5.1 5.2 USB Configuration.. 4-22 CPU Configuration.. 4-23 Chipset... 4-24. PCI PnP.. 4-28 Suspend Mode... 4-30 Repost Video on S3 Resume.. 4-30 ACPI 2.0 Support.. 4-30 ACPI APIC Support.. 4-30 APM Configuration.. 4-31 Hardware Monitor.. 4-33. Boot Device Priority.. 4-35 Boot Settings Configuration.. 4-36 Security... 4-37.
4.4.5 Onboard Devices Configuration.. 4-26. Power menu... 4-30

Boot menu... 4-35

Exit menu... 4-40. Installing an operating system.. 5-1. Support CD information.. 5-1 5.2.1 5.2.2 5.2.3 5.2.4 5.2.5 5.2.6 Running the support CD... 5-1. Drivers menu... 5-2. Utilities menu... 5-3 Manuals menu... 5-4 Contact information.. 5-5. Other information.. 5-5
Chapter 5: Software support

5.3 A.1 A.2

ASUS MyLogo... 5-7 Intel EM64T.. A-1. Enhanced Intel SpeedStep Technology (EIST). A-1 A.2.1 A.2.2 System requirements.. A-1. Using the EIST... A-2.

Appendix: CPU features

Intel Hyper-Threading Technology.. A-3 Using the Hyper-Threading Technology. A-3

Notices

Federal Communications Commission Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: This device may not cause harmful interference, and This device must accept any interference received including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with manufacturers instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment to an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help.

SB_PWR

ON Standby Power OFF Powered Off

P5PL2-E Onboard LED

Motherboard overview
Before you install the motherboard, study the configuration of your chassis to ensure that the motherboard fits into it.
Make sure to unplug the power cord before installing or removing the motherboard. Failure to do so can cause you physical injury and damage motherboard components.
2.2.1 Placement direction
When installing the motherboard, make sure that you place it into the chassis in the correct orientation. The edge with external ports goes to the rear part of the chassis as indicated in the image below.

2.2.2 Screw holes

Place six (6) screws into the holes indicated by circles to secure the motherboard to the chassis.
Do not overtighten the screws! Doing so can damage the motherboard.
Place this side towards the rear of the chassis

2.2.3 Motherboard layout

19cm (7.5in)
PS/2KBM S T: Mouse B: K yboard e

ATX12V

SPDIF_O1

LGA775

PARALLE PORT
DDR2 DIMM_B1 (64 bit,240-pin module)
DDR2 DIMM_A1 (64 bit,240-pin module)

LAN_USB34

EATXPWR

CHASSIS

ICS954123BFLF

USBPW34 USBPW12

PCIEX16

PCIEX1_2

CR2032 3V Lithium Cell CMOS Power

RTL8111B

Intel ICH7

SPDIF_OUT

AD1986A

USBPW78

4Mb BIOS

SATA1 SATA2

SATA4 SATA3

USBPW56

FLOPPY

CHA_FAN

PCIEX1_1

Super I/O

PRI_EIDE

30.5cm (12in)

Intel MCH 945
DDR2 DIMM_A2 (64 bit,240-pin module)
DDR2 DIMM_B2 (64 bit,240-pin module)

PWR_FAN

CPU_FAN

2.2.4 Layout contents

Slots Page 1. PCI-E x16 3. PCI 2-18 2-18 2-18 2. PCI-E x 1
Jumpers Page 1. Clear RTC RAM (3-pin CLRTC) 2. USB Device wake-up (3-pin USBPW12, USBPW34, USBPW56, USBPW78) Rear panel connectors 2-20 2-21
1. 2. 3. 4. 5. 6. 7. 8. 9.
PS/2 mouse port (green) Parallel port LAN (RJ-45) port Line In port (light blue) Line Out port (lime) Microphone port (pink) USB 2.0 ports 3 and 4 USB 2.0 ports 1 and 2 Serial port (COM1) Coaxial S/PDIF Out port PS/2 keyboard port (purple)
2-22 2-22 2-22 2-22 2-22 2-22 2-23 2-23 2-23 2-23 2-23

10. 11.

Internal connectors 1. 2. 3. 4. 5. 6. 7. 8. 9. 1 0. 1 1. 1 2. Floppy disk drive connector (34-1 pin FLOPPY) ICH7 Primary IDE connector (40-1 pin PRI_IDE) Digital audio connector (4-1 pin SPDIF) Serial ATA connectors (7-pin SATA1 [red], SATA2 [red], SATA3 [black], SATA4 [black]) Optical drive audio connector (4-pin CD) Front panel audio connector (10-1 pin AAFP) USB connectors (10-1 pin USB56, USB78) GAME/MIDI port connector (16-1 pin GAME) CPU, Chassis, and Power Fan connectors (4-pin CPU_FAN, 3-pin CHA_FAN1, PWR_FAN) Chassis intrusion connector (4-1 pin CHASSIS) ATX power connectors (24-pin EATXPWR, 4-pin ATX12V) System panel connector (20-1 pin PANEL)

Page 2-22 2-23 2-23 2-24 2-25 2-25 2-26 2-26 2-27 2-27 2-28 2-29
System power LED (Green 3-pin PLED) Hard disk drive activity LED (Red 2-pin IDE_LED) System warning speaker (Orange 4-pin SPEAKER) ATX power button/soft-off button (Yellow 2-pin PWRSW) Reset button (Blue 2-pin RESET)
Central Processing Unit (CPU)
The motherboard comes with a surface mount LGA775 socket designed for the Intel Pentium 4 processor in the 775-land package
Upon purchase of the motherboard, make sure that the PnP cap is on the socket and the socket contacts are not bent. Contact your retailer immediately if the PnP cap is missing, or if you see any damage to the PnP cap/socket contacts/motherboard components. ASUS will shoulder the cost of repair only if the damage is shipment/ transit-related. Keep the cap after installing the motherboard. ASUS will process Return Merchandise Authorization (RMA) requests only if the motherboard comes with the cap on the LGA775 socket. The product warranty does not cover damage to the socket contacts resulting from incorrect CPU installation/removal, or misplacement/loss/incorrect removal of the PnP cap.

2.3.1 Installing the CPU

To install a CPU: 1. Locate the CPU socket on the motherboard.
P5PL2-E CPU Socket 775 Before installing the CPU, make sure that the cam box is facing towards you and the load lever is on your left.
Press the load lever with your thumb (A), then move it to the left (B) until it is released from the retention tab.

Retention tab Load lever

PnP cap
This side of the socket box should face you.
To prevent damage to the socket pins, do not remove the PnP cap unless you are installing a CPU.
Lift the load lever in the direction of the arrow to a 135 angle.
Lift the load plate with your thumb and forefinger to a 100 angle (A), then push the PnP cap from the load plate window to remove (B).

Load plate

Position the CPU over the socket, making sure that the gold triangle is on the bottom-left corner of the socket. The socket alignment key should fit into the CPU notch.
Alignment key Gold triangle mark
The CPU fits in only one correct orientation. DO NOT force the CPU into the socket to prevent bending the connectors on the socket and damaging the CPU!
Close the load plate (A), then push the load lever (B) until it snaps into the retention tab.
The motherboard supports Intel Pentium 4 LGA775 processors with the Intel Enhanced Memory 64 Technology (EM64T), Enhanced Intel SpeedStep Technology (EIST), and Hyper-Threading Technology. Refer to the Appendix for more information on these CPU features.

Narrow end of the groove

The narrow end of the groove should point outward after resetting. (The photo shows the groove shaded for emphasis.)
Refer to the documentation in the boxed or stand-alone CPU fan package for detailed information on CPU fan installation.

System memory

2.4.1 Overview
The motherboard comes with four Double Data Rate 2 (DDR2) Dual Inline Memory Modules (DIMM) sockets. A DDR2 module has the same physical dimensions as a DDR DIMM but has a 240-pin footprint compared to the 184-pin DDR DIMM. DDR2 DIMMs are notched differently to prevent installation on a DDR DIMM socket. The figure illustrates the location of the DDR2 DIMM sockets:
DIMM_A1 DIMM_A2 DIMM_B1 DIMM_B2
P5PL2-E 240-pin DDR2 DIMM Sockets
Channel Channel A Channel B Sockets DIMM_A1 and DIMM_A2 DIMM_B1 and DIMM_B2
2.4.2 Memory configurations
You may install 128 MB, 256 MB, 512 MB and 1 GB unbuffered non-ECC DDR2 DIMMs into the DIMM sockets.
For dual-channel configuration, the total size of memory module(s) installed per channel must be the same (DIMM_A1 + DIMM_A2 = DIMM_B1 + DIMM_B2). Always install DIMMs with the same CAS latency. For optimum compatibility, it is recommended that you obtain memory modules from the same vendor. Refer to the DDR2 Qualified Vendors List on the next page for details. This motherboard does not support memory modules made up of 128 Mb chips or double sided x16 memory modules.

128 Pins

112 Pins
Qualified Vendors Lists (QVL) DDR2-533
Size Vendor Mode KVR533D2N4/256 KVR533D2N4/512 KVR533D2N4/1G CL N/A N/A Brand Side(s) Component Elpida Hynix SS E5116AB-5C-E DS HY5PS56821 DIMM support A B C
256 MB Kingston 512 MB Kingston 1 G Kingston
N/A Kingston DS D6408TE7BL-37 N/A Samsung SS K4T560838QF-GCD5
256 MB Samsung M378T3253FG0-CDMB Infineon 512 MB Infineon 512 MB Micron 512 MB Corsair 512 MB Elpida
512 MB Samsung M378T6553BG0-CD5 N/A Samsung SS K4T51083QB-GCD5
HYS64T64000GU-3.7-A N/A Infineon SS HYB18T512800AC37SSS11511 HYS64T64000HU-3.7-A N/A Infineon SS HYB18T512800AF37FSS29334 MT 16HTF6464AG-53EB2 /A N VS512MB533D2 EBE51UD8ABFA-5C-E N/A Micron DS D9BOM Elpida SS E5108AB-5C-E N/A Corsair DS MIII0052532M8CEC
Side(s): SS - Single-sided

DS - Double-sided

CL: CAS Latency
DIMM support: A - Supports one module inserted into either slot, in Single-channel memory configuration. B - Supports one pair of modules inserted into either the yellow slots or the black slots as one pair of Dual-channel memory configuration. C - Supports two pairs of modules inserted into the yellow and black slots as two pairs of Dual-channel memory configuration.

USB 2.0 ports 3 and 4. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. USB 2.0 ports 1 and 2. These two 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices. Serial port. This port connects a mouse, modem, or other devices that conform with serial specification.
10. Coaxial S/PDIF Out port. This port connects an external audio output device via a coaxial S/PDIF cable. 11. PS/2 keyboard port (purple). This port is for a PS/2 keyboard.
2.7.2 Internal connectors
1. Floppy disk drive connector (34-1 pin FLOPPY) This connector is for the provided floppy disk drive (FDD) signal cable. Insert one end of the cable to this connector, then connect the other end to the signal connector at the back of the floppy disk drive.
Pin 5 on the connector is removed to prevent incorrect cable connection when using a FDD cable with a covered Pin 5.
PIN 1 NOTE: Orient the red markings on the floppy ribbon cable to PIN 1.
P5PL2-E Floppy Disk Drive Connector
2. ICH7 Primary IDE connector (40-1 pin PRI_IDE) This connector is for an Ultra DMA 100/66 signal cable. The Ultra DMA 100/66 signal cable has three connectors: a blue connector for the primary IDE connector on the motherboard, a black connector for an Ultra DMA 100/66 IDE slave device (optical drive/hard disk drive), and a gray connector for an Ultra DMA 100/66 IDE master device (hard disk drive). If you install two hard disk drives, you must configure the second drive as a slave device by setting its jumper accordingly. Refer to the hard disk documentation for the jumper settings.
Pin 20 on the IDE connector is removed to match the covered hole on the Ultra DMA cable connector. This prevents incorrect insertion when you connect the IDE cable. Use the 80-conductor IDE cable for Ultra DMA 100/66 IDE devices.

PRI_IDE

P5PL2-E IDE Connector
NOTE: Orient the red markings (usually zigzag) on the ID ribbon cable to PIN 1.
3. Digital audio connector (4-1 pin SPDIF) This connector is for an additional Sony/Philips Digital Interface (S/ PDIF) port(s). Connect the S/PDIF Out module cable to this connector, then install the module to a slot opening at the back of the system chassis.
SPDIF_OUT P5PL2-E Digital Audio Connector The S/PDIF module is purchased separately.

SPDIFOUT GND

4. Serial ATA connectors (7-pin SATA1 [red], SATA2 [red], SATA3 [black], SATA4 [black]) These connectors are for the Serial ATA signal cables for Serial ATA hard disk drives.
GND RSA TA_RXN1 RSA TA_RXP1 GND RSA TA_TXN1 RSA TA_TXP1 GND
GND RSA TA_RXN4 RSA TA_RXP4 GND RSA TA_TXN4 RSA TA_TXP4 GND
GND RSA TA_RXN2 RSA TA_RXP2 GND RSA TA_TXN2 RSA TA_TXP2 GND
GND RSA TA_RXN3 RSA TA_RXP3 GND RSA TA_TXN3 RSA TA_TXP3 GND

P5PL2-E SATA Connectors

Important notes on Serial ATA You must install Windows 2000 Service Pack 4 or the Windows XP Service Pack 1 before using Serial ATA hard disk drives. When using the connectors in Standard IDE mode, connect the primary (boot) hard disk drive to the SATA1 or SATA2 connector. Refer to the table below for the recommended SATA hard disk drive connections.

This utility is available in the support CD that comes with the motherboard package.
ASUS Update requires an Internet connection either through a network or an Internet Service Provider (ISP).

Installing ASUS Update

To install ASUS Update: 1. 2. 3. Place the support CD in the optical drive. The Drivers menu appears. Click the Utilities tab, then click Install ASUS Update VX.XX.XX. See page 5-3 for the Utilities screen menu. The ASUS Update utility is copied to your system.
Quit all Windows applications before you update the BIOS using this utility.
Updating the BIOS through the Internet
To update the BIOS through the Internet: 1. Launch the ASUS Update utility from the Windows desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update main window appears.
Select Update BIOS from the Internet option from the dropdown menu, then click Next.
Select the ASUS FTP site nearest you to avoid network traffic, or click Auto Select. Click Next.
From the FTP site, select the BIOS version that you wish to download. Click Next. Follow the screen instructions to complete the update process.
The ASUS Update utility is capable of updating itself through the Internet. Always update the utility to avail all its features.
Updating the BIOS through a BIOS file
To update the BIOS through a BIOS file: 1. 2. Launch the ASUS Update utility from the Windows desktop by clicking Start > Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update main window appears. Select Update BIOS from a file option from the dropdown menu, then click Next.
Locate the BIOS file from the Open window, then click Save. Follow the screen instructions to complete the update process.

BIOS setup program

This motherboard supports a programmable firmware chip that you can update using the provided utility described in section 4.1 Managing and updating your BIOS. Use the BIOS Setup program when you are installing a motherboard, reconfiguring your system, or prompted to Run Setup. This section explains how to configure your system using this utility. Even if you are not prompted to use the Setup program, you can change the configuration of your computer in the future. For example, you can enable the security password feature or change the power management settings. This requires you to reconfigure your system using the BIOS Setup program so that the computer can recognize these changes and record them in the CMOS RAM or the firmware hub. The firmware hub on the motherboard stores the Setup utility. When you start up the computer, the system provides you with the opportunity to run this program. Press <Del> during the Power-On Self Tests (POST) to enter the Setup utility; otherwise, POST continues with its test routines. If you wish to enter Setup after POST, restart the system by pressing <Ctrl>+<Alt>+<Del>, or by pressing the reset button on the system chassis. You can also restart by turning the system off and then back on. Do this last option only if the first two failed. The Setup program is designed to make it as easy to use as possible. Being a menu-driven program, it lets you scroll through the various sub-menus and make your selections from the available options using the navigation keys.

Hyper Path 3 [Auto]

Allows you to enable or disable the ASUS Hyper Path 3 feature. Configuration options: [Disabled] [Enabled] [Auto]
DRAM Throttling Threshold [Auto]
Enable DRAM Throttling Thermal Throttling will make your system more stable. Configuration options: [Disabled] [Auto]
Booting Graphic Adapter Priority [PCI Express/PCI]
Allows selection of the graphics controller to use as primary boot device. Configuration options: [PCI Express/PCI] [PCI/PCI Express]

PEG Buffer Length [Auto]

Sets the length of the PCI Express graphics card buffer. Configuration options: [Auto] [Long] [Short]

Link Latency [Auto]

Sets the PCI Express graphics card link latency. Configuration options: [Auto] [Slow] [Normal]

PEG Root Control [Auto]

Allows you to enable, disable, or set to automatic the PCI Express graphics card root control. Configuration options: [Auto] [Disabled] [Enabled]

PEG Link Mode [Auto]

Sets the PCI Express graphics link mode. Setting this item to [Auto] allows the motherboard to automatically adjust the PCI Express graphics link mode to the correct frequency based on the system configuration. Four additional settings are available for overclocking the PEG Link Mode. Configuration options: [Auto] [Slow] [Normal] [Fast] [Faster]

Slot Power [Auto]

Sets the PCI Express graphics card slot power. Configuration options: [Auto] [Light] [Normal] [Heavy] [Heavier]
High Priority Port Select [Disabled]
Allows you to disable or select the high priority port. The specified high priority port will be given arbitration above VC0 but below VC1. Configuration options: [Disabled] [PCI Express Port 4]
4.4.5 Onboard Devices Configuration
Configure Win627EHG Super IO Chipset HD Audio Controller [Enabled] Onboard PCIEX GbE LAN [Enabled] LAN Option ROM [Disabled] Serial Port1 Address Parallel Port Address Parallel Port Mode ECP Mode DMA Channel Parallel Port IRQ Onboard Game/MIDI Port [3F8/IRQ4] [378] [ECP] [DMA3] [IRQ7] [Disabled] Enable or disable High Definition Audio Controller.

PCI Latency Timer [64]

Allows you to select the value in units of PCI clocks for the PCI device latency timer register. Configuration options: [32] [64] [96] [128] [160] [192] [224] [248]
Allocate IRQ to PCI VGA [Yes]
When set to [Yes], BIOS assigns an IRQ to PCI VGA card if the card requests for an IRQ. When set to [No], BIOS does not assign an IRQ to the PCI VGA card even if requested. Configuration options: [No] [Yes]
Palette Snooping [Disabled]
When set to [Enabled], the pallete snooping feature informs the PCI devices that an ISA graphics device is installed in the system so that the latter can function correctly. Configuration options: [Disabled] [Enabled]
IRQ-xx assigned to [PCI Device]
When set to [PCI Device], the specific IRQ is free for use of PCI/PnP devices. When set to [Reserved], the IRQ is reserved for legacy ISA devices. Configuration options: [PCI Device] [Reserved]

Power menu

The Power menu items allow you to change the settings for the ACPI and Advanced Power Management (APM) features. Select an item then press <Enter> to display the configuration options.
Suspend Mode ACPI 2.0 Support ACPI APIC Support APM Configuration Hardware Monitor

[Auto] [No] [Enabled]

Select the ACPI state used for System Suspend.
4.5.1 Suspend Mode [Auto]
Allows you to select the Advanced Configuration and Power Interface (ACPI) state to be used for system suspend. Configuration options: [S1 (POS) Only] [S3 Only] [Auto]
4.5.2 ACPI 2.0 Support [No]
Allows you to add more tables for Advanced Configuration and Power Interface (ACPI) 2.0 specifications. Configuration options: [No] [Yes]
4.5.3 ACPI APIC Support [Enabled]
Allows you to enable or disable the Advanced Programmable Interrupt Controller (APIC) mode under Advanced Configuration and Power Interface (ACPI). When enabled, the ACPI APIC table pointer is included in the RSDT pointer list. Configuration options: [Disabled] [Enabled]

Power On By PCI Devices [Disabled]
When set to [Enabled], this parameter allows you to turn on the system through a PCI LAN or modem card. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled]
Power On By PCIE Devices [Disabled]
When set to [Enabled], this parameter allows you to turn on the system through a PCI Express card. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled]
Power On By PS/2 Keyboard [Disabled]
Allows you to use specific keys on the keyboard to turn on the system. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Space Bar] [Ctrl-Esc] [Power Key]
Power On By PS/2 Mouse [Disabled]
When set to [Enabled], this parameter allows you to use the PS/2 mouse to turn on the system. This feature requires an ATX power supply that provides at least 1A on the +5VSB lead. Configuration options: [Disabled] [Enabled]

4.5.5 Hardware Monitor

Hardware Monitor AI Quiet CPU Temperature MB Temperature CPU Fan Speed (RPM) CPU Q-Fan Control Chassis Fan1 Speed (RPM) Power Fan Speed (RPM) VCORE Voltage 3.3V Voltage 5V Voltage 12V Voltage Automatically optimize BIOS setting to Minimi CPU FAN speed according to system loading.
[Disabled] [79.5C/175F] [36C/96.5F] [4470RPM] [Disabled] [N/A] [N/A] [ 1.432V] [ 3.312V] [ 5.171V] [12.091V]

AI Quiet [Disabled]

Allows you to enable or disable the AI Quiet feature. Configuration options: [Enabled] [Disabled].
1. When AI Quiet is enabled: The Enhanced C1 Control item is automatically set to [Auto] and becomes non-configurable. See page 4-24. The Intel(R) SpeedStep Technology item is automatically set to [Automatic] and becomes non-configurable. See page 4-24. The CPU Q-Fan Control and CPU Fan Profile Mode options do not appear. Refer to the items description below. The CPU Q-Fan Control item appears with the default setting [Disabled]. And the CPU Q-Fan Control item is enabled, the CPU Fan Profile Mode item appears with the default setting [Optimal].
2. When AI Quiet is disabled:
CPU Temperature [xx.xC/xx.xF] MB Temperature [xx.xC/xx.xF]
The onboard hardware monitor automatically detects and displays the motherboard and CPU temperatures. Select [Disabled] if you do not want to display the detected temperatures.
CPU Fan Speed (RPM) [xxxx RPM] or [Ignored]
The onboard hardware monitor automatically detects and displays the CPU fan speed in rotations per minute (RPM). If the fan is not connected to the motherboard, the field shows N/A.
CPU Q-Fan Control [Disabled]
Allows you to enable or disable the ASUS Q-Fan feature that smartly adjusts the fan speeds for more efficient system operation. Configuration options: [Disabled] [Enabled]

The CPU Fan Profile Mode item appears when you enable the CPU Q-Fan Control feature.
CPU Fan Profile Mode [Optimal] Allows you to set the appropriate CPU fan performance level. When set to [Optimal], the CPU fan speed automatically adjusts depending on the CPU temperature. Set this item to [Silent Mode] for silent CPU fan operation or [Performance Mode] to achieve the maximum CPU fan speed. Configuration options: [Optimal] [Silent Mode] [Performance Mode]
Chassis Fan1 Speed (RPM) [N/A] [xxxx RPM] or [Ignored]
The onboard hardware monitor automatically detects and displays the chassis fan speed in rotations per minute (RPM). If the fan is not connected to the chassis, the specific field shows N/A.
Power Fan Speed (RPM) [N/A] [xxxx RPM] or [Ignored]
The onboard hardware monitor automatically detects and displays the power fan speed in rotations per minute (RPM). If the fan is not connected to the power fan connector, the specific field shows N/A.
VCORE Voltage, 3.3V Voltage, 5V Voltage, 12V Voltage
The onboard hardware monitor automatically detects the voltage output through the onboard voltage regulators.

Boot menu

The Boot menu items allow you to change the system boot options. Select an item then press <Enter> to display the sub-menu.
Boot Settings Boot Device Priority Boot Settings Configuration Security
Specifies the Boot Device Priority Sequence. A virtual floppy disk drive (Floppy Drive B: )may appear when you set the CD-ROM drive as the first boot device. Select Screen Select Item Go to Sub-screen General Help Save and Exit Exit

Enter F1 F10 ESC

4.6.1 Boot Device Priority
Boot Device Priority 1st Boot Device 2nd Boot Device 3rd Boot Device Specifies the boot sequence from the available devices. A device enclosed in parenthesis has been disabled in the corresponding type menu.
[1st FLOPPY DRIVE] [Hard Drive] [ATAPI CD-ROM]
Select Screen Select Item Go to Sub-screen General Help Save and Exit Exit
1st ~ xxth Boot Device [1st Floppy Drive]
These items specify the boot device priority sequence from the available devices. The number of device items that appears on the screen depends on the number of devices installed in the system. Configuration options: [xxxxx Drive] [Hard Drive] [ATAPI CD-ROM] or [Disabled]
4.6.2 Boot Settings Configuration
Boot Settings Configuration Quick Boot Full Screen Logo AddOn ROM Display Mode Bootup Num-Lock PS/2 Mouse Support Wait For F1 If Error Hit DEL Message Display Interrupt 19 Capture Allows BIOS to skip certain tests while booting. This will decrease the time needed to boot the system.

<Enter> to change password. <Enter> again to disable password.
Security Settings Supervisor Password User Password
: Not Installed : Not Installed [Full Access] [Setup]
Change Supervisor Password User Access Level Change User Password Clear User Password Password Check
User Access Level [Full Access]
This item allows you to select the access restriction to the Setup items. Configuration options: [No Access] [View Only] [Limited] [Full Access] No Access prevents user access to the Setup utility. View Only allows access but does not allow change to any field. Limited allows changes only to selected fields, such as Date and Time. Full Access allows viewing and changing all the fields in the Setup utility.

Change User Password

Select this item to set or change the user password. The User Password item on top of the screen shows the default Not Installed. After you set a password, this item shows Installed. To set a User Password: 1. 2. 3. Select the Change User Password item and press <Enter>. On the password box that appears, type a password composed of at least six letters and/or numbers, then press <Enter>. Confirm the password when prompted.
The message Password Installed appears after you set your password successfully. To change the user password, follow the same steps as in setting a user password.

Clear User Password

Select this item to clear the user password.

Password Check [Setup]

When set to [Setup], BIOS checks for user password when accessing the Setup utility. When set to [Always], BIOS checks for user password both when accessing Setup and booting the system. Configuration options: [Setup] [Always]

Exit menu

The Exit menu items allow you to load the optimal or failsafe default values for the BIOS items, and save or discard your changes to the BIOS items.
Exit Options Exit & Save Changes Exit & Discard Changes Discard Changes Load Setup Defaults
Exit system setup after saving the changes. F10 key can be used for this operation.
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 & Save 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. An onboard backup battery sustains the CMOS RAM so it stays on even when the computer is turned off. When you select this option, a confirmation window appears. Select <OK> to save the changes and exit.

The screen displays and procedures may vary depending on the operating system.
Intel Hyper-Threading Technology
The motherboard supports Intel Pentium 4 LGA775 processors with Hyper-Threading Technology. Hyper-Threading Technology is supported under Windows XP/2003 Server and Linux 2.4.x (kernel) and later versions only. Under Linux, use the Hyper-Threading compiler to compile the code. If you are using any other operating systems, disable the Hyper-Threading Techonology item in the BIOS to ensure system stability and performance. Installing Windows XP Service Pack 1 or later version is recommended. Make sure to enable the Hyper-Threading Technology item in BIOS before installing a supported operating system. For more information on Hyper-Threading Technology, visit www. intel.com/info/hyperthreading.
Using the Hyper-Threading Technology
To use the Hyper-Threading Technology: 1. 2. 3. Install an Intel Pentium 4 CPU that supports Hyper-Threading Technology. Power up the system and enter the BIOS Setup. Under the Advanced Menu, make sure that the item HyperThreading Technology is set to Enabled. See page 4-26 for details. The BIOS item appears only if you installed a CPU that supports Hyper Threading Techonology. Restart the computer.

Asus P5PL2/C ( Support Core 2 Duo CPU) Intel 945PL Chipset LGA775 ATX 1066FSB Pentium D DDR2-533 PCIEX16 GBLAN
Support Socket 775 for Intel Pentium D / Pentium 4 / Celeron Specification CPU Socket 775 for Intel Pentium D / Pentium 4 / Celeron Intel EM64T / EIST / Hyper-Threading Technology New power design supports Intel next generation 04B/04A & 05B/05A CPU Chipset Intel 945PL Intel ICH7 Front Side Bus 800/533 MHz Memory 4 x DIMM, max. 2GB, DDR2 533/400, Non-ECC, un-buffered memory Dual Channel Architecture Expansion Slots 1 xPCI-E xxPCI-E xxPCI Storage/RAID Intel ICH7 Southbridge: 1 x UltraDMA 100/66/x Serial ATA II (3Gb/s) Audio ADI1986A 6-ch Audio CODEC Jack Sensing and Enumeration S/PDIF out interface LAN RTL8111B PCI-E Gb LAN controller Overclocking Features
SFS (Stepless Frequency Selection): from 100MHz up to 450MHz at 1MHz increment ASUS PEG Link " vCore: Adjustable CPU voltage at 0.025 V increment " ASUS EZFlash Adjustable FSB/DDR ratio. Fixed PCI/PCIe frequencies. 4-step DRAM voltage control ASUS C.P.R.(CPU Parameter Recall) Other ASUS Special Features ASUS Q-Fan ASUS MyLogo Back Panel I/O Ports 1 x Parallel 1 x Serial 1 x PS/2 Keyboard 1 x PS/2 Mouse 1 x Audio I/O 1 x RJx S/PDIF Out (Coaxial+Optical) 4 x USB Internal I/O Connectors 2 x USB connector supports additional 4 USB ports CPU / Chassisx2 / Power FAN connectors 24-pin ATX Power connector 4-pin ATX 12V Power connector IDE LED connector, power LED connector Chassis Intrusion CD audio in GAME/MIDI connector Front panel audio connector BIOS 4 Mb Flash ROM, AMI BIOS, PnP, DMI2.0, WfM2.0, SM BIOS 2.3, ASUS EZ Flash, ASUS CrashFree BIOS 2, ASUS MyLogo Manageability WOL by PME,WOR by PME, Chassis Intrusion Support CD Drivers ASUS PC Probe II ASUS LiveUpdate Anti-Virus Software Accessories User's manual 1 x UltraDMA 133/100/66 cable 1 x USB 2-port Module 1 x FDD cable 1 x I/O shield 1 x SATA Power cables for 2 SATA Devices 2 x SATA cable Form Factor ATX 12"x 7.5" (30.5 cm x 19 cm) USB 8 USB2.0 ports