Asus P5K: BIOS setup

BIOS setup: Asus P5K

This chapter tells how to change

the system settings through the BIOS

Setup menus. Detailed descriptions

of the BIOS parameters are also

provided.

BIOS setup

4

Chapter summary

4

4.1 Managing and updating your BIOS ............................................ 4-1

4.2 BIOS setup program ....................................................................

4-9

4.3 Main menu ..................................................................................

4-12

4.4 Advanced menu .........................................................................

4-16

4.5 Power menu ................................................................................

4-25

4.6 Boot menu ..................................................................................

4-29

4.7 Tools menu .................................................................................

4-33

4.8 Exit menu .................................................................................... 4-35

ASUS P5K

4.1 Managing and updating your BIOS

The following utilities allow you to manage and update the motherboard Basic

Input/Output System (BIOS) setup.

®

1.

ASUS Update (Updates the BIOS in Windows

environment.)

2.

ASUS EZ Flash 2 (Updates the BIOS using a oppy disk or USB ash disk.)

3.

ASUS AFUDOS (Updates the BIOS using a bootable oppy disk.)

4.

ASUS CrashFree BIOS 3 (Updates the BIOS using a bootable oppy disk,

USB ash disk or the motherboard support CD when the BIOS le fails or

gets corrupted.)

Refer to the corresponding sections for details on these utilities.

Save a copy of the original motherboard BIOS le to a bootable oppy disk or

USB ash disk in case you need to restore the BIOS in the future. Copy the

original motherboard BIOS using the ASUS Update or AFUDOS utilities.

4.1.1 ASUS Update utility

The ASUS Update is a utility that allows you to manage, save, and update the

®

motherboard BIOS in Windows

environment. The ASUS Update utility allows you

to:

Save the current BIOS le

Download the latest BIOS le from the Internet

Update the BIOS from an updated BIOS le

Update the BIOS directly from the Internet, and

View the BIOS version information.

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. Place the support CD in the optical drive. The Drivers menu appears.

2. Click the

Utilities tab, then click Install ASUS Update.

3. The ASUS Update utility is copied to your system.

ASUS P5K 4-1

®

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.

2. Select Update BIOS from the

3. Select the ASUS FTP site nearest

Internet option from the drop-down

you to avoid network trafc, or

menu, then click Next.

click Auto Select. Click Next.

4-2 Chapter 4: BIOS setup

4. From the FTP site, select the BIOS

version that you wish to download.

Click Next.

5. 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 le

To update the BIOS through a BIOS le:

®

1. Launch the ASUS Update utility from the Windows

desktop by clicking Start

> Programs > ASUS > ASUSUpdate > ASUSUpdate. The ASUS Update

main window appears.

2. Select Update BIOS from a le

option from the drop-down menu,

then click Next.

3. Locate the BIOS le from the Open

window, then click Open.

P5K.rom

4. Follow the screen instructions to

complete the update process.

P5K

ASUS P5K 4-3

4.1.2 Creating a bootable oppy disk

1. Do either one of the following to create a bootable oppy disk.

DOS environment

a. Insert a 1.44MB oppy disk into the drive.

b. At the DOS prompt, type

format

A:/S then press <Enter>.

®

Windows

XP environment

a. Insert a 1.44 MB oppy disk to the oppy disk drive.

®

b. Click

Start from the Windows

desktop, then select My Computer.

c. Select the 3 1/2 Floppy Drive icon.

d. Click File from the menu, then select

Format. A Format 3 1/2 Floppy

Disk window appears.

e. Select

Create an MS-DOS startup disk from the format options eld,

then click Start.

2. Copy the original or the latest motherboard BIOS le to the bootable oppy

disk.

4-4 Chapter 4: BIOS setup

4.1.3 ASUS EZ Flash 2 utility

The ASUS EZ Flash 2 feature allows you to update the BIOS without having to go

through the long process of booting from a oppy disk and using a DOS-based

utility. The EZ Flash 2 utility is built-in the BIOS chip so it is accessible by pressing

<Alt> + <F2> during the Power-On Self Tests (POST).

To update the BIOS using EZ Flash 2:

1. Visit the ASUS website (www.asus.com) to download the latest BIOS le for

the motherboard.

2. Save the BIOS le to a oppy disk or a USB ash disk, then restart the

system.

3. You can launch the EZ Flash 2 by two methods.

(1)

Insert the oppy disk / USB ash disk that contains the BIOS le to the

oppy disk drive or the USB port.

Press <Alt> + <F2> during POST to display the following.

ASUSTek EZ Flash 2 BIOS ROM Utility V3.05

FLASH TYPE: SST 25LF080

Current ROM

Update ROM

BOARD: P5K

BOARD: Unknown

VER: 0201

VER: Unknown

DATE: 04/18/07

DATE: Unknown

PATH: C:\

A:

C:

Note

[Enter] Select or Load [B] Backup [ESC] Exit

[Tab] Switch [Up/Down/Home/End] Move

(2) Enter BIOS setup program. Go to the

Tools menu to select EZ Flash2

and press <Enter> to enable it.

You can switch between drives by pressing <Tab> before the correct le

is found. Then press <Enter>.

4. When the correct BIOS le is found, EZ Flash 2 performs the BIOS update

process and automatically reboots the system when done.

This function can support devices such as USB ash disk, or oppy disk

with

FAT 32/16

format and single partition only.

Do not shut down or reset the system while updating the BIOS to prevent

system boot failure!

ASUS P5K 4-5

4.1.4 AFUDOS utility

The AFUDOS utility allows you to update the BIOS le in DOS environment using

a bootable oppy disk with the updated BIOS le. This utility also allows you to

copy the current BIOS le that you can use as backup when the BIOS fails or gets

corrupted during the updating process.

Copying the current BIOS

To copy the current BIOS le using the AFUDOS utility:

Make sure that the oppy disk is not write-protected and has at least

1024KB free space to save the le.

The succeeding BIOS screens are for reference only. The actual BIOS

screen displays may not be same as shown.

1. Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to

the bootable oppy disk you created earlier.

2. Boot the system in DOS mode, then at the prompt type:

afudos /o[lename]

where the [lename] is any user-assigned lename not more than eight

alphanumeric characters for the main lename and three alphanumeric

characters for the extension name.

A:\>afudos /oOLDBIOS1.rom

Main lename Extension name

3. Press <Enter>. The utility copies the current BIOS le to the oppy disk.

A:\>afudos /oOLDBIOS1.rom

AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))

Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

Reading ash ..... done

Write to le...... ok

A:\>

The utility returns to the DOS prompt after copying the current BIOS le.

Updating the BIOS le

To update the BIOS le using the AFUDOS utility:

1. Visit the ASUS website (www.asus.com) and download the latest BIOS le for

the motherboard. Save the BIOS le to a bootable oppy disk.

4-6 Chapter 4: BIOS setup

Write the BIOS lename on a piece of paper. You need to type the exact BIOS

lename at the DOS prompt.

2. Copy the AFUDOS utility (afudos.exe) from the motherboard support CD to

the bootable oppy disk you created earlier.

3. Boot the system in DOS mode, then at the prompt type:

afudos /i[lename]

where [lename] is the latest or the original BIOS le on the bootable oppy

disk.

A:\>afudos /iP5K.ROM

4. The utility veries the le and starts updating the BIOS.

A:\>afudos /iP5K.ROM

AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))

Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS

Reading le ....... done

Reading ash ...... done

Advance Check ......

Erasing ash ...... done

Writing ash ...... 0x0008CC00 (9%)

Do not shut down or reset the system while updating the BIOS to prevent

system boot failure!

5. The utility returns to the DOS prompt after the BIOS update process is

completed. Reboot the system from the hard disk drive.

A:\>afudos /iP5K.ROM

AMI Firmware Update Utility - Version 1.19(ASUS V2.07(03.11.24BB))

Copyright (C) 2002 American Megatrends, Inc. All rights reserved.

WARNING!! Do not turn off power during ash BIOS

Reading le ....... done

Reading ash ...... done

Advance Check ......

Erasing ash ...... done

Writing ash ...... done

Verifying ash .... done

Please restart your computer

A:\>

ASUS P5K 4-7

4.1.5 ASUS CrashFree BIOS 3 utility

The ASUS CrashFree BIOS 3 is an auto recovery tool that allows you to restore

the BIOS le when it fails or gets corrupted during the updating process. You can

update a corrupted BIOS le using the motherboard support CD, the oppy disk, or

the USB ash disk that contains the updated BIOS le.

Prepare the motherboard support CD, the oppy disk or the USB ash disk

containing the updated motherboard BIOS before using this utility.

Recovering the BIOS from the support CD

To recover the BIOS from the support CD:

1. Turn on the system.

2. Insert the motherboard support CD to the optical drive.

3. The utility displays the following message and automatically checks the CD

for the BIOS le.

Bad BIOS checksum. Starting BIOS recovery...

Checking for oppy...

When found, the utility reads the BIOS le and starts ashing the corrupted

BIOS le.

Bad BIOS checksum. Starting BIOS recovery...

Checking for oppy...

Floppy found!

Reading le “P5K.ROM”. Completed.

Start ashing...

4. Restart the system after the utility completes the updating process.

Recovering the BIOS from the USB ash disk

To recover the BIOS from the USB ash disk:

1. Insert the USB ash disk that contains BIOS le to the USB port.

2. Turn on the system.

3. The utility will automatically checks the devices for the BIOS le When found,

the utility reads the BIOS le and starts ashing the corrupted BIOS le.

4. Restart the system after the utility completes the updating process.

Only the USB ash disk with FAT 32/16 format and single partition can

support ASUS CrashFree BIOS 3. The device size should be smaller than

8GB.

DO NOT shut down or reset the system while updating the BIOS! Doing so

can cause system boot failure!

4-8 Chapter 4: BIOS setup

4.2 BIOS setup program

This motherboard supports a programmable Serial Peripheral Interface (SPI) 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, reconguring

your system, or prompted to “Run Setup.” This section explains how to congure

your system using this utility.

Even if you are not prompted to use the Setup program, you can change the

conguration 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 recongure your system using the BIOS Setup program so that the

computer can recognize these changes and record them in the CMOS RAM of the

SPI chip.

The SPI chip 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-Test (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+Delete>, 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 rst 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.

The default BIOS settings for this motherboard apply for most conditions

to ensure optimum performance. If the system becomes unstable after

changing any BIOS settings, load the default settings to ensure system

compatibility and stability. Select the Load Setups Default item under the

Exit Menu. See section 4.8 Exit Menu.

The BIOS setup screens shown in this section are for reference purposes

only, and may not exactly match what you see on your screen.

Visit the ASUS website (www.asus.com) to download the latest BIOS le for

this motherboard.

ASUS P5K 4-9

4.2.1 BIOS menu screen

Menu bar

Conguration eldsMenu items

General help

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Use [ENTER], [TAB] or

System Time [10:55:25]

[SHIFT-TAB] to select

System Date [Fri 03/09/2007]

a eld.

Legacy Diskette A [1.44M, 3.5 in]

Use [+] or [-] to

congure system Time.

SATA 1 [WDC WD800JD-00LSA0]

SATA 2 [Not Detected]

SATA 3 [Not Detected]

SATA 4 [Not Detected]

SATA Coniguration

Select Screen

System Information

Select Item

+- Change Field

Tab Select Field

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

Sub-menu items

Navigation keys

4.2.2 Menu bar

The menu bar on top of the screen has the following main items:

Main For changing the basic system conguration

Advanced For changing the advanced system settings

Power For changing the advanced power management (APM)

conguration

Boot For changing the system boot conguration

Tools For Conguring options for special functions

Exit For selecting the exit options and loading default settings.

To select an item on the menu bar, press the right or left arrow key on the keyboard

until the desired item is highlighted.

4.2.3 Navigation keys

At the bottom right corner of a menu screen are the navigation keys for that

particular menu. Use the navigation keys to select items in the menu and change

the settings.

Some of the navigation keys differ from one screen to another.

4-10 Chapter 4: BIOS setup

4.2.4 Menu items

System Time [06:22:54]

Use [ENTER], [TAB],

The highlighted item on the menu bar

System Date [Fri 03/09/2007]

or [SHIFT-TAB] to

Legacy Diskette A [1.44M, 3.5 in]

select a eld.

displays the specic items for that

SATA 1 [Not Detected]

Use [+] or [-] to

SATA 2 [Not Detected]

congure system

SATA 3 [Not Detected]

Time.

menu. For example, selecting Main

SATA 4 [Not Detected]

SATA Conguration

shows the Main menu items.

System Information

The other items (Advanced, Power,

Boot, and Exit) on the menu bar have

their respective menu items.

Main menu items

4.2.5 Sub-menu items

A solid triangle before each item on any menu screen means that the iteam has a

sub-menu. To display the sub-menu, select the item and press <Enter>.

4.2.6 Conguration elds

These elds show the values for the menu items. If an item is user- congurable,

you can change the value of the eld opposite the item. You cannot select an item

that is not user-congurable.

A congurable eld is enclosed in brackets, and is highlighted when selected. To

change the value of a eld, select it then press <Enter> to display a list of options.

Refer to “4.2.7 Pop-up window.”

4.2.7 Pop-up window

Select a menu item then press <Enter> to display a pop-up window with the

conguration options for that item.

4.2.8 Scroll bar

A scroll bar appears on the right side of a

menu screen when there are items that do

not t on the screen. Press the

Up/Down arrow keys or <Page Up> /<Page

Down> keys to display the other items on

the screen.

4.2.9 General help

Pop-up window

At the top right corner of the menu screen

Scroll bar

is a brief description of the selected item.

ASUS P5K 4-11

4.3 Main menu

When you enter the BIOS Setup program, the Main menu screen appears, giving

you an overview of the basic system information.

Refer to section 4.2.1 BIOS menu screen for information on the menu screen

items and how to navigate through them.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Use [ENTER], [TAB] or

System Time [10:55:25]

[SHIFT-TAB] to select

System Date [Fri 03/09/2007]

a eld.

Legacy Diskette A [1.44M, 3.5 in]

Use [+] or [-] to

congure system Time.

SATA 1 [WDC WD800JD-00LSA0]

SATA 2 [Not Detected]

SATA 3 [Not Detected]

SATA 4 [Not Detected]

SATA Coniguration

Select Screen

System Information

Select Item

+- Change Field

Tab Select Field

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

4.3.1 System Time [xx:xx:xx]

Allows you to set the system time.

4.3.2 System Date [Day xx/xx/xxxx]

Allows you to set the system date.

4.3.3 Legacy Diskette A [1.44M, 3.5 in.]

Sets the type of oppy drive installed.

Conguration options: [Disabled] [720K, 3.5 in.] [1.44M, 3.5 in.]

4-12 Chapter 4: BIOS setup

4.3.4 SATA 1~4

While entering Setup, the BIOS automatically detects the presence of IDE devices.

There is a separate sub-menu for each IDE device. Select a device item then

press <Enter> to display the IDE device information.

BIOS SETUP UTILITY

Main

SATA 1

Select the type of

Device : Hard Disk

device connected to

Vendor : WDC WD800JD-00LSA0

the system.

Size : 80.0GB

LBA Mode : Supported

Block Mode : 16 Sectors

PIO Mode : 4

Async DMA : MultiWord DMA-2

Ultra DMA : Ultra DMA-5

SMART Monitoring: Supported

Type [Auto]

Select Screen

LBA/Large Mode [Auto]

Select Item

Block(Multi-sector Transfer)M [Auto]

+- Change Option

PIO Mode [Auto]

F1 General Help

DMA Mode [Auto]

F10 Save and Exit

SMART Monitoring [Auto]

ESC Exit

32Bit Data Transfer [Enabled]

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

The BIOS automatically detects the values opposite the dimmed items (Device,

Vendor, Size, LBA Mode, Block Mode, PIO Mode, Async DMA, Ultra DMA, and

SMART monitoring). These values are not user-congurable. These items show

N/A if no IDE device is installed in the system.

Type [Auto]

Selects the type of IDE drive. Setting to [Auto] allows automatic selection of the

appropriate IDE device type. Select [CDROM] if you are specically conguring a

CD-ROM drive. Select [ARMD] (ATAPI Removable Media Device) if your device is

either a ZIP, LS-120, or MO drive.

Conguration options: [Not Installed] [Auto] [CDROM] [ARMD]

LBA/Large Mode [Auto]

Enables or disables the LBA mode. Setting to [Auto] enables the LBA mode if the

device supports this mode, and if the device was not previously formatted with LBA

mode disabled. Conguration options: [Disabled] [Auto]

Block (Multi-sector Transfer) M [Auto]

Enables or disables data multi-sectors transfers. When set to [Auto], the data

transfer from and to the device occurs multiple sectors at a time if the device

supports multi-sector transfer feature. When set to [Disabled], the data transfer

from and to the device occurs one sector at a time.

Conguration options: [Disabled] [Auto]

PIO Mode [Auto]

Selects the PIO mode.

Conguration options: [Auto] [0] [1] [2] [3] [4]

ASUS P5K 4-13

DMA Mode [Auto]

Selects the DMA mode. Conguration options: [Auto] [SWDMA0] [SWDMA1]

[SWDMA2] [MWDMA0] [MWDMA1] [MWDMA2] [UDMA0] [UDMA1] [UDMA2]

[UDMA3] [UDMA4] [UDMA5]

SMART Monitoring [Auto]

Sets the Smart Monitoring, Analysis, and Reporting Technology.

Conguration options: [Auto] [Disabled] [Enabled]

32Bit Data Transfer [Enabled]

Enables or disables 32-bit data transfer.

Conguration options: [Disabled] [Enabled]

4.3.5 SATA Conguration

The items in this menu allow you to set or change the congurations for the SATA

devices installed in the system. Select an item then press <Enter> if you want to

congure the item.

SATA Conguration

Options

SATA Conguraton [Enhanced]

Disabled

Congure SATA as [IDE]

Compatiable

Enhanced

Hard Disk Write Protect [Disabled]

SATA Detect Time Out (Sec) [35]

SATA Conguration [Enhanced]

Conguration options: [Disabled] [Compatible] [Enhanced]

Configure SATA As [IDE]

Sets the conguration for the Serial ATA connectors supported by the

Southbridge chip. Conguration options: [IDE] [AHCI]

Hard Disk Write Protect [Disabled]

Disables or enables device write protection. This will be effective only if device is

accessed throuh BIOS. Conuration option: [Disabled] [Enabled]

SATA Detect Time Out (Sec) [35]

Selects the time out value for detecting ATA/ATAPI devices.

Conguration options: [0] [5] [10] [15] [20] [25] [30] [35]

4-14 Chapter 4: BIOS setup

4.3.6 System Information

This menu gives you an overview of the general system specications. The BIOS

automatically detects the items in this menu.

BIOS SETUP UTILITY

Main

AMIBIOS

Version : 0201

Build Date : 04/18/07

Processor

Type : Genuine Intel(R) CPU @ 2.40GHz

Speed : 1200 MHz

Count : 1

System Memory

Select Screen

Available : 512 MB

Select Item

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2006, American Megatrends, Inc.

AMI BIOS

Displays the auto-detected BIOS information.

Processor

Displays the auto-detected CPU specication.

System Memory

Displays the auto-detected system memory.

ASUS P5K 4-15

4.4 Advanced menu

The Advanced menu items allow you to change the settings for the CPU and other

system devices.

Take caution when changing the settings of the Advanced menu items. Incorrect

eld values can cause the system to malfunction.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

JumperFree Conguration

USB Conguration

CPU Conguration

Chipset

Onboard Devices Conguration

PCIPnP

Select Screen

Select Item

+- Change Field

Tab Select Field

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

4.4.1 Jumperfree Conguration

Advanced

Congure System Frequency/Voltage

Select the target CPU

AI Overclocking [Auto]

frequency, and the

CPU Ratio Control [Auto]

relevant parameters

DRAM Frequency [Auto]

will be auto-adjusted.

DRAM Timing Control [Auto]

Frequencies higher

DRAM Static Read Control [Auto]

than CPU manufacturer

recomends are not

Transaction Booster [Disabled]

guaranteed to be

Clock Over-Charging Mode [Auto]

stable. If the system

becomes unstable,

CPU Spread Spectrum [Auto]

return to the default.

PCIE Spread Spectrum [Auto]

AI Overclocking [Auto]

Allows selection of CPU overclocking options to achieve desired CPU internal

frequency. Select any one of the preset overclocking conguration options:

Manual Allows you to individually set overclocking parameters.

Auto

Loads the optimal settings for the system.

Standard

Loads the standard settings for the system.

N.O.S.

The ASUS Non-delay Overclocking System feature

intelligently determines the system load and automatically

boosts the performance for the most demanding tasks.

4-16 Chapter 4: BIOS setup

Some of the following items appear when you set AI Overclocking to [Manual]

or [N.O.S.]. The items vary depending on which option you select.

N.O.S. Mode [Auto]

Allows you to set the Non-delay Overclocking System mode.

Conguration options: [Auto] [Standard] [Sensitive] [Heavy Load]

CPU Ratio Control [Auto]

Conguration options: [Auto] [Manual]

The following item appears when the CPU Ratio Control item is set to

[Manual].

Ratio CMOS Setting [12]

Use the <+> and <-> keys to select the CMOS ratio values from 6 to 12.

FSB Frequency [XXX]

Displays the frequency sent by the clock generator to the system bus and PCI

bus. Use the <+> and <-> keys to adjust the FSB frequency. You can also type

the desired FSB frequency using the numeric keypad. The values range from 200

to 800. Refer to the table below for the correct Front Side Bus and CPU External

Frequency settings.

PCIE Frequency [Auto]

Allows you to set the PCI Express frequency.

Conguration options: [Auto] [100] [101]~[149] [150].

FSB/CPU External Frequency Synchronization

Front Side Bus CPU External Frequency

FSB 1333 333 MHz

FSB 1066 266 MHz

FSB 800 200 MHz

DRAM Frequency [Auto]

Allows you to set the DDR2 operating frequency.

Conguration options: [Auto] [DDR2-667MHz] [DDR2-800MHz] [DDR2-1066MHz]

Selecting a very high DRAM frequency may cause the system to become

unstable! If this happens, revert to the default setting.

ASUS P5K 4-17

DRAM Timing Control [Auto]

Allows you to set the DRAM timing control. Conguration options: [Auto] [MANUAL]

The following items appear when you set the DRAM Timing Control item to

[Manual].

CAS# Latency [ 5]

Conguration options: [3] [4] [5] [6]

RAS# to CAS# Delay [ 5 DRAM Clocks]

Conguration options: [3 DRAM Clocks] [4 DRAM Clocks]~[9 DRAM Clocks]

[10 DRAM Clocks]

RAS# Precharge [ 5 DRAM Clocks]

Conguration options: [3 DRAM Clocks] [4 DRAM Clocks]~[9 DRAM Clocks]

[10 DRAM Clocks]

RAS# Activate to Precharge [9 DRAM Clocks]

Conguration options: [3 DRAM Clocks] [4 DRAM Clocks]~[17 DRAM Clocks]

[18 DRAM Clocks]

TWR [Auto]

Conguration options: [Auto] [ 1 DRAM Clocks]~[15 DRAM Clocks]

TRFC [Auto]

Conguration options: [Auto] [20 DRAM Clocks] [25 DRAM Clocks]

[30 DRAM Clocks] [35 DRAM Clocks] [42 DRAM Clocks]

TWTR [Auto]

Conguration options: [Auto] [ 1 DRAM Clocks]~[15 DRAM Clocks]

TRRD [Auto]

Conguration options: [Auto] [ 1 DRAM Clocks]~[15 DRAM Clocks]

TRTP [Auto]

Conguration options: [Auto] [ 1 DRAM Clocks]~[15 DRAM Clocks]

DRAM Static Read Control [Auto]

Conguration options: [Auto] [Disabled] [Enabled]

Transaction Booster [Disabled]

Conguration options: [Auto] [Disabled] [Enabled]

Clock Over-Charging Mode [Auto]

Conguration options: [Auto] [700mV] [800mV] [900mV] [1000mV]

CPU Spread Spectrum [Auto]

Allows you to enable or disable the CPU spread spectrum.

Conguration options: [Auto] [Disabled]

4-18 Chapter 4: BIOS setup

PCIE Spread Spectrum [Auto]

Allows you to enable or disable the PCIE spread spectrum.

Conguration options: [Auto] [Disabled]

CPU Voltage [Auto]

Allows you to select the CPU voltage. Conguration options: [Auto] [1.7000V]

[1.6875V] [1.6750V] [1.6625V] [1.6500V] [1.6375V] [1.6250V] [1.6125V] [1.6000V]

[1.5875V] [1.5750V] [1.5625V] [1.5500V] [1.5375V] [1.5250V] [1.5125V] [1.5000V]

[1.4875V] [1.4750V] [1.4625V] [1.4500V] [1.4375V] [1.4250V] [1.4125V] [1.4000V]

[1.3875V] [1.3750V] [1.3625V] [1.3500V] [1.3375V] [1.3250V] [1.3125V] [1.3000V]

[1.2875V] [1.2750V] [1.2625V] [1.2500V] [1.2375V] [1.2250V] [1.2125V] [1.2000V]

[1.1875V] [1.1750V] [1.1625V] [1.1500V] [1.1375V] [1.1250V] [1.1125V] [1.1000V]

Refer to the CPU documentation before setting the CPU voltage. Setting a high

voltage may damage the CPU!

CPU Voltage Reference [Auto]

Conguration options: [Auto] [0.63x] [0.61x] [0.59x] [0.57x]

CPU Voltage Damper [Auto]

Conguration options: [Auto] [Disabled] [Enabled]

CPU PLL Voltage [Auto]

Conguration options: [Auto] [1.70V]

DRAM Voltage [Auto]

Allows you to select the DDR2 reference voltage.

Conguration options: [Auto] [1.80V] [1.85V] [1.90V] [1.95V] [2.00V] [2.05V] [2.10V]

[2.15V] [2.20V] [2.25V] [2.30V] [2.35V] [2.40V] [2.45V] [2.50V] [2.55V]

Refer to the DDR2 documentation before adjusting the memory voltage. Setting

a very high memory voltage may damage the memory module(s)!

FSB Termination Voltage [Auto]

Allows you to select the front side bus termination voltage.

Conguration options: [Auto] [1.20V] [1.30V] [1.40V] [1.50V]

Setting a high FSB termination voltage may damage the chipset and CPU.

North Bridge Voltage [Auto]

Conguration options: [Auto] [1.40V] [1.55V] [1.70V]

North Bridge Voltage Refernece [Auto]

Conguration options: [Auto] [0.67x] [0.61x]

ASUS P5K 4-19

4.4.2 USB Conguration

The items in this menu allows you to change the USB-related features. Select an

item then press <Enter> to display the conguration options.

BIOS SETUP UTILITY

Advanced

USB Conguration

Options

USB Devices Enabled:

Disabled

None

Enhanced

USB Functions [Enabled]

USB 2.0 Controller [Enabled]

USB 2.0 Controller Mode [HiSpeed]

BIOS EHCI Hand-off [Enabled]

Port 64/60 Emulation [Disabled]

Legacy USB Support [Auto]

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

The USB Devices Enabled item shows auto-detected values. If no USB device

is detected, the item shows None.

USB Functions [Enabled]

Allows you to enable or disable the USB functions. The following sub-items appear

when this item is set to [Enabled]. Conguration options: [Disabled] [Enabled]

USB 2.0 Controller [Enabled]

Allows you to enable or disable the USB 2.0 controller.

Conguration options: [Enabled] [Disabled]

USB 2.0 Controller Mode [HiSpeed]

Allows you to set the USB 2.0 controller mode to HiSpeed (480 Mbps) or

FullSpeed (12 Mbps). This item appears only when you enable the USB 2.0

Controller item. Conguration options: [FullSpeed ] [HiSpeed ]

BIOS EHCI Hand-off [Enabled]

Allows you to enable support for operating systems without an EHCI hand-off

feature. Conguration options: [Disabled] [Enabled]

Port 64/60 Emulation [Disabled]

Allows you to enable or disable the I/O port 60h/64h emulation support. This item

should be enabled for the complete USB keyboard legacy support for non-USB

aware OSes. Conguration options: [Disabled] [Enabled]

4-20 Chapter 4: BIOS setup

Legacy USB Support [Auto]

Allows you to enable or disable support for legacy USB devices. Setting to [Auto]

allows the system to detect the presence of USB devices at startup. If detected,

the USB controller legacy mode is enabled. If no USB device is detected, the

legacy USB support is disabled. Conguration options: [Disabled] [Enabled] [Auto]

4.4.3 CPU Conguration

The items in this menu show the CPU-related information that the BIOS

automatically detects.

BIOS SETUP UTILITY

Advanced

Congure advanced CPU settings

Options

Manufacturer:Intel

Auto

Brand String:Genuine Intel(R) CPU @ 2.40 GHz

MANUAL

Frequency :1.20GHz

FSB Speed :800 MHz

Cache L1 :32 KB

Cache L2 :512 KB

CPUID :660

Ratio Status:Unlocked (Max:12, Min:06)

Ratio Actual Value :6

CPU Ratio Control [Auto]

C1E Support [Enabled]

Max CPUID Value Limit: [Disabled]

Select Screen

Vanderpool Technology [Enabled]

Select Item

CPU TM function: [Enabled]

+- Change Option

Execute Disable Bit [Enabled]

F1 General Help

PECI [Enabled]

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

CPU Ratio Control [Auto]

Conguration options: [Auto] [MANUAL]

The following item appears when the item CPU Ratio Control is set to

[MANUAL].

Ratio CMOS Setting: [12]

Use the <+> and <-> keys to select the CMOS ratio values from 6 to 12.

C1E Support [Enabled]

Allows you to enable or disable C1E Support.

Conguration options: [Disabled] [Enabled]

Max CPUID Value Limit [Disabled]

Setting this item to [Enabled] allows legacy operating systems to boot even without

support for CPUs with extended CPUID functions.

Conguration options: [Disabled] [Enabled]

ASUS P5K 4-21

Vanderpool Technology [Enabled]

Conguration options: [Enabled] [Disabled]

CPU TM Function [Enabled]

Conguration options: [Disabled] [Enabled]

Execute Disable Bit [Enabled]

Allows you to enable or disable the No-Execution Page Protection Technology.

Setting this item to [Disabled] forces the XD feature ag to always return to zero

(0). Conguration options: [Disabled] [Enabled]

PECI [Enabled]

Allows you to enable or disable the PECI interface.

Conguration options: [Disabled] [Enabled]

The following item appears when you set CPU Ratio Control to [Auto]

Intel(R) SpeedStep (TM) Tech. [Disabled]

Conguration options: [Disabled] [Automatic]

4.4.4 Chipset

The Chipset menu allows you to change the advanced chipset settings. Select an

item then press <Enter> to display the sub-menu.

BIOS SETUP UTILITY

Advanced

Advanced Chipset Settings

Congure North Bridge

features.

WARMING: Setting wrong values in below sections

may cause system to malfunction.

North Bridge Conguration

North Bridge Conguration

BIOS SETUP UTILITY

Advanced

North Bridge Chipset Conguration

ENABLE: Allow

remapping of

Memory Remap Feature [Enabled]

overlapped PCI memory

Initiate Graphic Adapter [PEG/PCI]

above the total

PEG Port Control [Auto]

physical memory.

PEG Port Force x1 [Disabled]

ASUS C.G.I. Function [Auto]

DISABLE: Do not allow

remapping of memory.

4-22 Chapter 4: BIOS setup

Memory Remap Feature [Enabled]

Allows you to enabled or disable the remapping of the overlapped PCI

memory above the total physical memory. Enable this option only when you

install 64-bit operating system. Conguration options: [Disabled] [Enabled]

Initiate Graphic Adapter [PEG/PCI]

Allows you to decide which graphics controller to use as the primary boot

device. Conguration options: [PCI/PEG] [PEG/PCI]

PEG Port Control [Auto]

Conguration options: [Auto] [Disabled]

PEG Force x1 [Disabled]

This item appears when the PEG Port Control item is set to [Auto].

Conguration options: [Enabled] [Disabled]

ASUS C.G.I. Function [Auto]

Allows you to congure ASUS Cross Graphics Impeller.

Conguration options: [Auto] [Enabled] [Disabled]

4.4.5 OnBoard Devices Conguration

BIOS SETUP UTILITY

Advanced

Onboard Device Conguraiton

Enable or Disable

High Denition Audio

Controller

High Denition Audio [Enabled]

Front Panel Type [HD Audio]

Onboard 1394 Controller [Enabled]

Onboard PCIE GbE LAN [Enabled]

LAN Option ROM [Disabled]

J-Micron eSATA/PATA Controller [Enabled]

Controller Mode [IDE]

Serial Port1 Address [3F8/IRQ4]

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

High Denition Audio [Enabled]

Allows you to enable or disable the High Denition Audio. The following item

appears only when you enable this item.

Conguration options: [Enabled] [Disabled]

Front Panel Type [HD Audio]

Allows you to set the front panel audio connector (AAFP) mode to legacy

AC’97 or high-denition audio depending on the audio standard that the front

panel audio module supports. Conguration options: [AC97] [HD Audio]

Onboard 1394 Controller [Enabled]

Allows you to disable or enable the onboard 1394 device support.

Conguration options: [Enabled] [Disabled]

ASUS P5K 4-23

Onboard PCIE GbE LAN [Enabled]

Conguration options: [Enabled] [Disabled]

LAN Option ROM [Disabled]

This item appears only when you enable the previous item.

Conguration options: [Disabled] [Enabled]

J-Micron eSATA/PATA Controller [Enabled]

Conguration options: [Enabled] [Disabled]

Controller Mode [IDE]

This item appears only when you enable the previous item.

Conguration options: [RAID] [IDE] [AHCI]

Serial Port1 Address [3F8/IRQ4]

Allows you to select the Serial Port1 base address.

Conguration options: [Disabled] [3F8/IRQ4] [2F8/IRQ3] [3E8/IRQ4] [2E8/IRQ3]

4.4.6 PCI PnP

The PCI PnP menu items allow you to change the advanced settings for PCI/PnP

devices.

Take caution when changing the settings of the PCI PnP menu items. Incorrect

eld values can cause the system to malfunction.

BIOS SETUP UTILITY

Advanced

Advanced PCI/PnP Settings

NO: lets the BIOS

congure all the

WARNING: Setting wrong values in below sections

devices in the system.

may cause system to malfunction.

YES: lets the

operating system

Plug And Play O/S [No]

congure Plug and Play

(PnP) devices not

required for boot if

your system has a Plug

and Play operating

system.

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

Plug And Play O/S [No]

When set to [No], BIOS congures all the devices in the system. When set to

[Yes] and if you install a Plug and Play operating system, the operating system

congures the Plug and Play devices not required for boot.

Conguration options: [No] [Yes]

4-24 Chapter 4: BIOS setup

4.5 Power menu

The Power menu items allow you to change the settings for the Advanced

Power Management (APM). Select an item then press <Enter> to display the

conguration options.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Select the ACPI state

Suspend Mode [Auto]

used for System

Repost Video on S3 Resume [Disabled]

Suspend.

ACPI Version [Disabled]

ACPI APIC Support [Enabled]

APM Conguration

Hardware Monitor

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

4.5.1 Suspend Mode [Auto]

Allows you to select the Advanced Conguration and Power Interface (ACPI) state

to be used for system suspend.

Conguration options: [S1 (POS) Only] [S3 Only] [Auto]

4.5.2 Repost Video on S3 Resume [Disabled]

Determines whether to invoke VGA BIOS POST on S3/STR resume.

Conguration options: [Disabled] [Enabled]

4.5.3 ACPI Version [Disabled]

Allows you to select the Advanced Conguration and Power Interface (ACPI)

version supported. Conguration options: [Disabled] [Enabled]

4.5.4 ACPI APIC Support [Enabled]

Allows you to enable or disable the Advanced Conguration and Power Interface

(ACPI) support in the Advanced Programmable Interrupt Controller (APIC). When

set to Enabled, the ACPI APIC table pointer is included in the RSDT pointer list.

Conguration options: [Disabled] [Enabled]

ASUS P5K 4-25

4.5.5 APM Conguration

BIOS SETUP UTILITY

Power

APM Conguration

<Enter> to select

whether or not to

restart the system

after AC power loss.

Restore on AC Power Loss [Power Off]

Power On By RTC Alarm [Disabled]

Power On By External Modems [Disabled]

Power On By PCI Devices [Disabled]

Power On By PCIE Devices [Disabled]

Power On By PS/2 Keyboard [Disabled]

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

Restore On AC Power Loss [Power Off]

When set to Power Off, the system goes into off state after an AC power loss.

When set to Power On, the system goes on after an AC power loss. When set to

Last State, the system goes into either off or on state, whatever the system state

was before the AC power loss.

Conguration options: [Power Off] [Power On] [Last State]

Power On By RTC Alarm [Disabled]

Allows you to enable or disable RTC to generate a wake event. When this item is

set to Enabled, the items RTC Alarm Date/ RTC Alarm Hour/ RTC Alarm Minute/

RTC Alarm Second will become user-congurable with set values.

Conguration options: [Disabled] [Enabled]

Power On By External Modems [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.

Conguration options: [Disabled] [Enabled]

The computer cannot receive or transmit data until the computer and

applications are fully running. Thus, connection cannot be made on the rst

try. 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 On By PCI Devices [Disabled]

Allows you to enable or disable the PME to wake up from S5 by PCI devices.

Conguration options: [Disabled] [Enabled]

Power On By PCIE Devices [Disabled]

Allows you to enable or disable the PCIE devices to generate a wake event.

Conguration options: [Disabled] [Enabled]

4-26 Chapter 4: BIOS setup

Power On By PS/2 Keyboard [Disabled]

Allows you to disable the Power On by PS/2 keyboard function or set specic keys

on the PS/2 keyboard to turn on the system. This feature requires an ATX power

supply that provides at least 1A on the +5VSB lead.

Conguration options: [Disabled] [Space Bar] [Ctrl-Esc] [Power Key]

4.5.6 Hardware Monitor

BIOS SETUP UTILITY

Power

Hardware Monitor

CPU Temperature

CPU Temperature [25ºC/77ºF]

MB Temperature [34ºC/93ºF]

CPU Fan Speed [4440RPM]

CPU Q-Fan Control [Disabled]

Chassis Fan 1 Speed [4440RPM]

Chassis Fan 2 Speed [N/A]

Chassis Q-Fan Control [Disabled]

Power Fan Speed [N/A]

Select Screen

VCORE Voltage [ 1.080V]

Select Item

3.3V Voltage [ 3.232V]

+- Change Field

5V Voltage [ 5.040V]

F1 General Help

12V Voltage [12.208V]

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2006, American Megatrends, Inc.

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

CPU Temperature [xxxºC/xxxºF]

MB Temperature [xxxºC/xxxºF]

The onboard hardware monitor automatically detects and displays the motherboard

and CPU temperatures. Select [Ignored] if you do not wish to display the detected

temperatures.

CPU Fan Speed [xxxxRPM] or [Ignored] / [N/A]

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 eld shows N/A.

CPU Q-Fan Control [Disabled]

Allows you to enable or disable the CPU Q-Fan controller.

Conguration options: [Disabled] [Enabled]

The CPU Fan Prole item appears when you enable the CPU Q-Fan Control

feature.

ASUS P5K 4-27

CPU Fan Prole [Optimal]

Allows you to set the appropriate performance level of the CPU Q-Fan. When

set to [Optimal], the CPU fan automatically adjusts depending on the CPU

temperature. Set this item to [Silent Mode] to minimize fan speed for quiet CPU fan

operation, or [Performance Mode] to achieve maximum CPU fan speed.

Conguration options: [Optimal] [Silent Mode] [Performance Mode]

Chassis Fan 1/2 Speed [xxxxRPM] or [Ignored] / [N/A]

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

motherboard, the eld shows N/A.

Chassis Q-Fan Control [Disabled]

Allows you to enable or disable the chassis Q-Fan controller.

Conguration options: [Disabled] [Enabled]

The Chassis Fan Ratio item appears when you enable the Chassis Q-Fan

Control feature.

Chassis Fan Ratio [Auto]

Allows you to set the appropriate fan speed ratio for the chassis Q-Fan. When

set to [Auto], the chassis fan automatically adjusts depending on the chassis

temperature. Set a low ratio to minimize fan speed for quiet chassis fan operation,

or a high ratio to achieve maximum chassis fan speed.

Conguration options: [Auto] [90%] [80%] [70%] [60%]

Power Fan Speed (RPM) [xxxxRPM] or [Ignored] / [N/A]

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

motherboard, the eld 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. Select [Ignored] if you do not want to detect this

item.

4-28 Chapter 4: BIOS setup

4.6 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.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Species the Boot

Boot Device Priority

Device Priority

sequence.

Boot Settings Conguration

A virtual oppy disk

Security

drive (Floppy Drive B:)

may appear when you set

the CD-ROM drive as the

rst boot device.

Select Screen

Select Item

Enter Go to Sub Screen

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

4.6.1 Boot Device Priority

BIOS SETUP UTILITY

Boot

Boot Device Priority

Species the boot

sequence from the

availabe devices.

1st Boot Device [1st FLOPPY DRIVE]

2nd Boot Device [HDD:PM-WDC WD800JD]

A device enclosed

3rd Boot Device [ATAPI CD-ROM]

in parenthesis has

been disabled in

the corresponding

menu.

Select Screen

Select Item

+-

Change Option

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

1st ~ xxth Boot Device [xxx 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.

Conguration options: [xxx Drive] [Disabled]

ASUS P5K 4-29

4.6.2 Boot Settings Conguration

BIOS SETUP UTILITY

Boot

Boot Settings Conguration

Allows BIOS to skip

certain tests while

booting. This will

Quick Boot [Enabled]

decrease the time

Full Screen Logo [Enabled]

needed to boot the

AddOn ROM Display Mode [Force BIOS]

system.

Bootup Num-Lock [On]

Wait for ‘F1’ if Error [Enabled]

Hit ‘DEL’ Message Display [Enabled]

Interrupt 19 Capture [Disabled]

Select Screen

Select Item

+- Change Option

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

Quick Boot [Enabled]

Enabling this item allows the BIOS to skip some power on self tests (POST) while

booting to decrease the time needed to boot the system. When set to [Disabled],

BIOS performs all the POST items.

Conguration options: [Disabled] [Enabled]

Full Screen Logo [Enabled]

This allows you to enable or disable the full screen logo display feature.

Conguration options: [Disabled] [Enabled]

Set this item to [Enabled] to use the ASUS MyLogo2

feature.

AddOn ROM Display Mode [Force BIOS]

Sets the display mode for option ROM.

Conguration options: [Force BIOS] [Keep Current]

Bootup Num-Lock [On]

Allows you to select the power-on state for the NumLock.

Conguration options: [Off] [On]

Wait for ‘F1’ If Error [Enabled]

When set to Enabled, the system waits for the F1 key to be pressed when error

occurs. Conguration options: [Disabled] [Enabled]

Hit ‘DEL’ Message Display [Enabled]

When set to Enabled, the system displays the message “Press DEL to run Setup”

during POST. Conguration options: [Disabled] [Enabled]

Interrupt 19 Capture [Disabled]

When set to [Enabled], this function allows the option ROMs to trap Interrupt 19.

Conguration options: [Disabled] [Enabled]

4-30 Chapter 4: BIOS setup

4.6.3 Security

The Security menu items allow you to change the system security settings. Select

an item then press <Enter> to display the conguration options.

BIOS SETUP UTILITY

Boot

Security Settings

<Enter> to change

password.

<Enter> again to

Supervisor Password :Not Installed

disabled password.

User Password :Not Installed

Change Supervisor Password

Change User Password

Select Screen

Select Item

Enter Change

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

Change Supervisor Password

Select this item to set or change the supervisor password. The Supervisor

Password item on top of the screen shows the default Not Installed. After you set a

password, this item shows Installed.

To set a Supervisor Password:

1. Select the Change Supervisor Password item and press <Enter>.

2. From the password box, type a password composed of at least six letters

and/or numbers, then press <Enter>.

3. Conrm the password when prompted.

The message “Password Installed” appears after you successfully set your

password.

To change the supervisor password, follow the same steps as in setting a user

password.

To clear the supervisor password, select the Change Supervisor Password then

press <Enter>. The message “Password Uninstalled” appears.

If you forget your BIOS password, you can clear it by erasing the CMOS Real

Time Clock (RTC) RAM. See section 2.6 Jumper for information on how to

erase the RTC RAM.

After you have set a supervisor password, the other items appear to allow you to

change other security settings.

ASUS P5K 4-31

BIOS SETUP UTILITY

Boot

Security Settings

<Enter> to change

password.

<Enter> again to

Supervisor Password :Installed

disabled password.

User Password :Installed

Change Supervisor Password

User Access Level [Full Access]

Change User Password

Clear User Password

Password Check [Setup]

Select Screen

Select Item

Enter Change

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

User Access Level [Full Access]

This item allows you to select the access restriction to the Setup items.

Conguration 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 eld.

Limited allows changes only to selected elds, such as Date and Time.

Full Access allows viewing and changing all the elds 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. Select the Change User Password item and press <Enter>.

2. On the password box that appears, type a password composed of at least six

letters and/or numbers, then press <Enter>.

3. Conrm 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.

Conguration options: [Setup] [Always]

4-32 Chapter 4: BIOS setup

4.7 Tools menu

The Tools menu items allow you to congure options for special functions. Select

an item then press <Enter> to display the sub-menu.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Press ENTER to run

ASUS EZ Flash 2

the utility to select

and update BIOS.

ASUS O.C. Prole

This utility doesn't

support :

1.NTFS format

Select Screen

Select Item

+-

Change Field

Enter Go to Sub Screen

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

4.7.1 ASUS EZ Flash 2

Allows you to run ASUS EZ Flash 2. When you press <Enter>, a conrmation

message appears. Use the left/right arrow key to select between [Yes] or [No],

then press <Enter> to conrm your choice. Please see section 4.1.3 for details.

ASUSTek EZ Flash 2 BIOS ROM Utility V3.05

FLASH TYPE: SST 25LF080

Current ROM

Update ROM

BOARD: P5K

BOARD: Unknown

VER: 0201

VER: Unknown

DATE: 04/18/07

DATE: Unknown

PATH: C:\

A:

C:

Note

[Enter] Select or Load [B] Backup [ESC] Exit

[Tab] Switch [Up/Down/Home/End] Move

ASUS P5K 4-33

4.7.2 ASUS O.C. Prole

This item allows you to store or load multiple BIOS settings.

BIOS SETUP UTILITY

Tools

O.C. PROFILE Conguration

Save to Prole 1

O.C. Prole 1 Status :Not Installed

O.C. Prole 2 Status :Not Installed

Save to Prole 1

Load from Prole 1

Save to Prole 2

Load from Prole 2

Start O.C. Prole

Select Screen

Select Item

Enter Go to Sub Screen

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

Save to Proe 1/2

Allows you to save the current BIOS le to the BIOS Flash. Press <Enter> to save

the le.

Load from Prole 1/2

Allows you to load the previous BIOS settings saved in the BIOS Flash. Press

<Enter> to load the le.

Start O.C. Prole

Allows you to run the utility to save and load CMOS. Press <Enter> to run the

utility.

ASUSTek O.C. Prole Utility V1.03

Current CMOS

Restore CMOS

BOARD: P5K

BOARD: Unknown

VER: 0201

VER: Unknown

DATE: 04/18/07

DATE: Unknown

PATH: C:\

A:

C:

Note

[Enter] Select or Load [B] Backup [ESC] Exit

[Tab] Switch [Up/Down/Home/End] Move

This function can support devices such as USB ash disk or oppy

disk with FAT 32/16 format and single partition only.

DO NOT shut down or reset the system while updating the BIOS to

prevent the system boot failure!

4-34 Chapter 4: BIOS setup

4.8 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.

BIOS SETUP UTILITY

Main Advanced Power Boot Tools Exit

Exit system setup

Exit & Save Changes

after saving the

Exit & Discard Changes

changes.

Discard Changes

F10 key can be used

Load Setup Defaults

for this operation.

Select Screen

Select Item

Enter Go to Sub Screen

Tab Select Field

F1 General Help

F10 Save and Exit

ESC Exit

v02.58 (C)Copyright 1985-2007, American Megatrends, Inc.

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 nished 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 PC is turned

off. When you select this option, a conrmation 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. Press <Enter> to save the changes while exiting.

Exit & Discard Changes

Select this option only if you do not want to save the changes that you made to

the Setup program. If you made changes to elds other than System Date, System

Time, and Password, the BIOS asks for a conrmation before exiting.

Discard Changes

This option allows you to discard the selections you made and restore the

previously saved values. After selecting this option, a conrmation appears. Select

YES to discard any changes and load the previously saved values.

Load Setup Defaults

This option allows you to load the default values for each of the parameters on the

Setup menus. When you select this option or if you press <F5>, a conrmation

window appears. Select YES to load default values. Select Exit & Save Changes

or make other changes before saving the values to the non-volatile RAM.

ASUS P5K 4-35

4-36 Chapter 4: BIOS setup