Asus P4P800s-X, size: 1.8 MB
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MSI 655Max FISR ASUS P4P800 X
User reviews and opinions
|Ulyssess||5:02am on Friday, October 22nd, 2010|
|Great bang for the buck. I ordered this for an upgrade for my kids system. Installs very easy and booted successfully on the first try.|
|munki247||7:07pm on Thursday, September 9th, 2010|
|Scarily, the guy behind me has the same system I do, and i agree with him in every way. Great motherboard with great features. this m/b is great.installed easy,and boot up smooth and nice.great o/c and features.|
Comments posted on www.ps2netdrivers.net are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.
2.5.5 BIOS -> AML ACPI Table.. 2-24 2.5.6 APM Configuration.. 2-25 2.5.7 Hardware Monitor.. 2-27 Boot menu.. 2-28 2.6.1 Boot Device Priority.. 2-28 2.6.2 Boot Settings Configuration.. 2-28 2.6.3 Security... 2-30 Exit menu... 2-32
Chapter 3: Software support
3.1 3.2 Install an operating system.. 3-2 Support CD information.. 3-2 3.2.1 Running the support CD.. 3-2 3.2.2 Drivers menu.. 3-3 3.2.3 Utilities menu.. 3-3 3.2.4 ASUS Contact Information.. 3-4
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.
The use of shielded cables for connection of the monitor to the graphics card is required to assure compliance with FCC regulations. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the users authority to operate this equipment.
1.5.1 Motherboard layout
PS/2KBMS T: Mouse B: Keyboard ATX12V
DDR DIMMA2 (64 bit,184-pin module)
DDR DIMMA1 (64 bit,184-pin module)
DDR DIMMB1 (64 bit,184-pin module)
DDR DIMMB2 (64 bit,184-pin module)
Accelerated Graphics Port (AGP)
P4P800-X Intel ICH5
CR2032 3V Lithium Cell CMOS Power
CHA_FAN GAME USB56 USBPW56 USBPW78 USB78 PANEL
Top:Line In Center:Line Out Below:Mic In
USB3 RJ-45 USB4
Intel 865PE MCH
ATX Power Connector
1.5.2 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.
1.5.3 Screw holes
Place seven (7) screws into the holes indicated by circles to secure the motherboard to the chassis.
Do not overtighten the screws! Doing so may damage the motherboard.
Place this side towards the rear of the chassis
Central Processing Unit (CPU)
The Intel Pentium 4 Northwood/Prescott processors 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.
P4P800-X CPU Socket 478
Incorrect installation of the CPU into the socket may bend the pins and severely damage the CPU!
Notes on Intel Hyper-Threading Technology
This motherboard supports Intel Pentium 4 CPUs in the 478-pin package 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 Technology item in the BIOS to ensure system stability and performance. Installing the 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.
To use the Hyper-Threading Technology on this motherboard: 1. Buy an Intel Pentium 4 CPU that supports Hyper-Threading Technology. Install the CPU. 2. Power up the system and enter BIOS Setup (see Chapter 2). Under the Advanced Menu, make sure that the item Hyper-Threading Technology is set to Enabled. The item appears only if you installed a CPU that supports HyperThreading Technology. 3. Reboot the computer.
Recommended memory configurations
Mode Single-channel (1) (2) (3) (4) Dual-channel (1) (2)
DIMM_A1 (blue) Populated Populated
DIMM_A2 (black) Populated Populated Populated
DIMM_B1 (blue) Populated Populated Populated
DIMM_B2 (black) Populated Populated Populated
* For dual-channel configuration (3), you may: install identical DIMMs in all four sockets install identical DIMM pair in DIMM_A1 and DIMM_B1 (blue sockets) and identical DIMM pair in DIMM_A2 and DIMM_B2 (black sockets) install same size DIMMs in DIMM_A1 and DIMM_B1 (blue sockets) and another same size pair in DIMM_A2 and DIMM_B2 (black sockets)
Memory frequency/CPU FSB synchronization
This motherboard supports different memory frequencies depending on the CPU FSB (Front Side Bus) and the type of DDR DIMM.
CPU FSB 800 MHz 533 MHz 400 MHz DDR DIMM Type PC3200/PC2700/PC2100 PC2700/PC2100 PC2100 Memory Frequency 400/320*/266 MHz 333/266 MHz 266 MHz
*When using 800 MHz FSB CPU, PC2700 DDR DIMMs run only at 320MHz (not 333MHz) due to chipset limitation.
DDR400 Qualified Vendor List (QVL)
Size 256MB 256MB 256MB 512MB 512MB 512MB 512MB
Vendor A DATA A DATA A DATA A DATA A DATA A DATA ATP
Model MDOAD5F3G31Y0D1E02 MDOHY6F3G31Y0N1E0Z MDOSS6F3G31Y0K1E0Z MDOAD5F3H41Y0D1E02 MDOHY6F3H41Y0N1E0Z MDOSS6F3H41Y0N1E0Z AG64L64T8SQC4S
Brand N/A Hynix SAMSUNG N/A Hynix SAMSUNG SAMSUNG
Side(s) SS SS SS DS DS DS DS
Component ADD8608A8A-5B HY5DU56822CT-D43 K4H560838E-TCCC ADD8608A8A-5B HY5DU56822CT-D43 K4H560838F-TCCC K4H560838D-TCC4
(Continued on the next page)
Model B6U808-256M-SAM-400 B6U808-512M-SAM-400 DXV6S8MC5BC3U27E DXV6S8SSCCD3K27C DXV6S8SSCCE3K27E DXV2S8MC5BC3U27E DXV2S8SSCCD3K27C DXV2S8SSCCE3K27E CMX256A-3200C2PT VS256MB330308147 VS256MB400 CMX512-3200C2 VS512MB333 VS512MB400 M2U25664DS88B3G-5T M2U25664DS8HB3G-5T GD3200-256V GD3200-512V GE5123200B HYMD216646C(L)6-H HYMD232726B(L)8-H HYMD232726B(L)8-J HYS64D32300GU-5-C HYS64D32300GU-6 HYS64D32300GU-5-B HYS64D64320GU-5-C HYS64D64320GU-6-C KVR400X64C3A/256 KVR333X64C25/512 KVR33X64C/256 KVR400X64C3A/512 N/A N/A MT8VDDT3264AG-40BCB MT16VDDT6464AG-40BCB AL5D8B53T-5B1K AL6D8A53T1-5B AL6D8B53T-5B1K M368L3223ETM-CCC M368L3223ETM-CCC M368L3223FTN-CCC M368L6423FTN-CB M368L6423ETM-CCC M368L6423FTN-CCC VT400FMV/2561103 VT400FMV/5121003
Brand SAMSUNG SAMSUNG MICRON SAMSUNG SAMSUNG MICRON SAMSUNG SAMSUNG Winbond SAMSUNG VALUE seLecT Winbond VALUE seLecT VALUE seLecT NANYA NANYA GEIL GEIL GEIL Hynix Hynix Hynix Infineon Infineon Infineon Infineon Infineon Hynix Hynix Kingston Hynix VT VT MICRON MICRON PSC PSC PSC SAMSUNG SAMSUNG SAMSUNG SAMSUNG SAMSUNG SAMSUNG VT VT
Side(s) SS DS SS SS SS DS DS DS SS SS SS DS DS DS SS DS SS DS DS SS SS SS SS SS DS DS DS SS DS DS DS SS DS SS DS SS DS DS SS SS SS DS DS DS SS DS
Component K4H560838D-TCC4 K4H560838D-TCC4 MT46V32M8TG-5BC K4H560838D-TCCC K4H560838E-TCCC MT46V32M8TG-5BC K4H560838D-TCCC K4H560838E-TCCC W942508BH-5 K4H560838D-TCB3 VS32M8-5 N/A VS32M8-6 VS32M8-5 N2DS25680BT-5T N2DS25680BT-5T GLIL DDR 32M8 GLIL DDR 32M8 GL3LC32G88TG-5A HY5DU561622CT-H HY5DU56822BT-H HY5DU56822BT-J HYB25D256800CE-5C HYB25D256800CE-6C HYB25D256800CE-6C HYB25D256800CE-6C HYB25D256800CE-6C HY5DU56822BT-D43 HY5DU56822BT-J 03208DHIT-6 HY5DU56822BT-D43 VT3225804T-5 VT3225804T-5 MT46V32M8TG-5BC MT46V32M8TG-5BC A2S56D30BTP A2S56D30ATP A2S56D30BTP K4H560838E-TCCC K4H560838E-TCCC K4H560838F-TCCC K4H560939S-TCCC K4H560838E-TCCC K4H560838F-TCCC VT56DD32M8PC-5 VT56DD32M8PC-5
256MB BRAIN POWER 512MB BRAIN POWER 256MB CENTURY 256MB 256MB 512MB 512MB 512MB 256MB 256MB 256MB 512MB 512MB 512MB 256MB 512MB 256MB 512MB 512MB 128MB 256MB 256MB 256MB 256MB 512MB 512MB 512MB 256MB 512MB 512MB 512MB 256MB 512MB 256MB 512MB 256MB 512MB 512MB 256MB 256MB 256MB 256MB 512MB 512MB 256MB 512MB CENTURY CENTURY CENTURY CENTURY CENTURY CORSAIR CORSAIR CORSAIR CORSAIR CORSAIR CORSAIR elixir elixir GEIL GEIL GEIL Hynix Hynix Hynix Infineon Infineon Infineon Infineon Infineon KINGSTON KINGSTON KINGSTON KINGSTON Kreton Kreton MICRON MICRON PSC PSC PSC SAMSUNG SAMSUNG SAMSUNG SAMSUNG SAMSUNG SAMSUNG Veritech Veritech
Side(s): SS - Single Sided DIMM Support:
DS - Double Sided
A - supports one module inserted into either slot, in a Single-channel memory configuration. B - supports on pair of modules inserted into either the slots as one pair of Dual-channel memory configuration. C - support for 4 modules inserted into all the slots as two pairs of Dual-channel memory configuration.
Obtain DDR DIMMs only from ASUS qualified vendors. Visit the ASUS website (www.asus.com) for the latest QVL.
1.7.3 Installing a DIMM
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 notch on the DIMM matches the break 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.
Unlocked DDR DIMM
A DDR DIMM is keyed with a notch so that it fits in only one direction. DO NOT force a DIMM into a socket to avoid damaging the DIMM.
To install and configure an expansion card: 1. Install an expansion card following the instructions that came with the chassis. 2. Turn on the system and change the necessary BIOS settings, if any. See Chapter 2 for BIOS information. 3. Assign an IRQ to the card. Refer to the tables next page. 4. Install the drivers and/or software applications for the expansion card according to the card documentation.
1.8.1 Standard interrupt assignments
IRQ Priority Standard Function System Timer Keyboard Controller 2 N/A Programmable Interrupt 3* 11 IRQ holder for PCI steering 4* 12 Communications Port (COM1) 5* 13 IRQ holder for PCI steering Floppy Disk Controller 7* 15 Printer Port (LPT1) System CMOS/Real Time Clock 9* 4 IRQ holder for PCI steering 10* 5 IRQ holder for PCI steering 11* 6 IRQ holder for PCI steering 12* 7 PS/2 Compatible Mouse Port Numeric Data Processor 14* 9 Primary IDE Channel 15* 10 Secondary IDE Channel These IRQs are usually available for ISA or PCI devices.
1.8.2 IRQ assignments for this motherboard
A PCI slot 1 PCI slot 2 PCI slot 3 PCI slot 4 PCI slot 5 AGP slot used Onboard USB 1.1/2.0 controller Onboard LAN Onboard Audio B C used D E F G H shared shared shared shared shared shared shared shared 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.
1.8.3 PCI slots
1. 2. Follow the hard disk drive documentation when setting the device in master or slave mode. Pin 20 on each IDE connector is removed to match the covered hole on the UltraATA cable connector. This prevents incorrect orientation when you connect the cables. The hole near the blue connector on the UltraATA cable is intentional.
NOTE: Orient the red markings (usually zigzag) on the IDE ribbon cable to PIN 1.
P4P800-X IDE connectors
3. Serial ATA connectors (7-pin SATA1, SATA2)
These next generation connectors support the thin Serial ATA cables for primary internal storage devices. The current Serial ATA interface allows up to 150 MB/s data transfer rate, faster than the standard parallel ATA with 133 MB/s (Ultra ATA/133).
GND RSATA_RXP2 RSATA_RXN2 GND RSATA_TXN2 RSATA_TXP2 GND
P4P800-X SATA connectors
Important notes on Serial ATA In a legacy operating system (DOS, Windows 98/ME) environment, using the Serial ATA connectors will disable the ICH5 chipset support to one of the IDE channels (either primary or secondary channel). Hot plug support for Serial ATA drive and connections are not available in this motherboard. Install Windows XP Service Pack 1 when using Serial ATA.
GND RSATA_RXP1 RSATA_RXN1 GND RSATA_TXN1 RSATA_TXP1 GND
Parallel ATA and Serial ATA device configurations
Following are the Parallel ATA and Serial ATA device configurations supported by Intel ICH5 specifications. Native operating systems (OS) are Windows 2000/XP. ICH5 supports a maximum of six (6) devices using these OS. Legacy OS are MS-DOS, Windows 98/ME. ICH5 supports a maximum of four (4) devices using these OS.
Operating System 1. Windows 2000/XP 2. Windows 98/ME Configuration A Configuration B Configuration C
S-ATA Port 0 Port 1
(1 device) (1 device)
Required IDE Configuration settings in BIOS
Refer to the following table for the appropriate BIOS settings of the above P-ATA and S-ATA device configurations. See section 2.3.5 IDE Configuration for details on the related BIOS items.
Onboard IDE Operate Mode
Windows 98/Me/NT4.0 B
Enhanced Mode Support On S-ATA IDE Port Settings
P-ATA Ports Only
4. ATX power connectors (20-pin ATXPWR, 4-pin ATX12V) These connectors connect to an ATX 12V power supply. The plugs from the power supply are designed to fit these connectors in only one orientation. Find the proper orientation and push down firmly until the connectors completely fit. In addition to the 20-pin ATX power connector, this motherboard requires that you connect the 4-pin ATX +12V power plug to provide sufficient power to the CPU.
Hard Disk Activity Lead (Red 2-pin IDE_LED) This connector supplies power to the hard disk activity LED. The read or write activities of any device connected to the primary or secondary IDE connector cause this LED to light up.
The System Panel connector is color-coded for easy and foolproof connection. Take note of the specific connector colors as described.
This chapter tells how to change system settings through the BIOS Setup menus. Detailed descriptions of the BIOS parameters are also provided.
Managing and updating your BIOS
The following utilities allow you to manage and update the motherboard Basic Input/Output System (BIOS) setup. 1. ASUS AFUDOS - Updates the BIOS using a bootable floppy disk in DOS mode. 2. ASUS EZ Flash - Updates the BIOS using a floppy disk during POST. 3. ASUS CrashFree BIOS 2 - Updates the BIOS using a bootable floppy disk or the motherboard support CD. Refer to the corresponding sections for details on these utilities.
It is recommended that you save a copy of the original motherboard BIOS file to a bootable floppy disk in case you need to restore the BIOS in the future. Copy the original motherboard BIOS using AFUDOS (refer to section 2.1.3 Using AFUDOS to copy BIOS from PC) Visit the ASUS website and download the latest BIOS file for this motherboard using the ASUS Update utility.
2.1.1 Creating a bootable floppy disk
1. Do either one of the following to create a bootable floppy disk. DOS environment Insert a 1.44 MB floppy disk into the drive. At the DOS prompt, type: format A:/S a. b. c. d. then press <Enter>. Windows 98SE/ME/XP environment Insert a 1.44 MB floppy disk into the floppy disk drive. From your Windows desktop, click on Start, then select My Computer. Select the 3 1/2 Floppy Drive icon. Click File from the menu, then select Format. A Format 3 1/2 Floppy Disk window appears. e. If you are using Windows XP, select Create an MS-DOS startup disk from the format options field, then click Start. OR If you are using Windows 98SE/ME, select Full option button from the format type, then click Start. Windows 2000 environment To create a set of boot disks for Windows 2000, run the Makeboot.exe tool from the Windows 2000 CD: a. Insert a 1.44 MB floppy disk into the floppy disk drive. b. Insert the Windows 2000 CD into the CD-ROM drive.
Chapter 2: BIOS information
c. Click Start, then select Run. d. From the Open box, type D:\bootdisk\makeboot a: then press <Enter>, assuming that D: is your CD-ROM drive. e. Follow succeeding screen instructions. 2. Copy the original (or the latest) motherboard BIOS to the bootable floppy disk.
When the copy process is complete, the utility returns to the DOS prompt.
2.1.4 Using ASUS EZ Flash to update the BIOS
The ASUS EZ Flash feature allows you to easily update the BIOS without having to go through the long process of booting from a diskette and using a DOS-based utility. The EZ Flash is built-in the BIOS firmware so it is accessible by simply pressing <Alt + F2> during the Power-On Self Tests (POST).
To update the BIOS using ASUS EZ Flash:
1. Visit the ASUS website (www.asus.com) to download the latest BIOS file for your motherboard and rename the downloaded file as P4P800X.ROM. Save the BIOS file to a floppy disk. 2. Reboot the system. 3. To launch EZ Flash, press <Alt+F2> during POST to display the following.
User recovery requested. Starting BIOS recovery. Checking for floppy.
If there is no floppy disk in the drive, the error message Floppy not found! appears. If the correct BIOS file is not in the floppy disk, the error message Floppy not found! is displayed. Make sure to rename the downloaded BIOS file as P4P800X.ROM.
4. Insert the floppy disk that contains the BIOS file. If all the necessary files are found in the floppy disk, EZ Flash performs the BIOS update process and automatically reboots the system when done.
User recovery requested. Starting BIOS recovery. Checking for floppy. Floppy found! Reading file P4P800X.ROM. Completed. Start flashing. Flashed successfully. Rebooting.
2.1.5 Recovering the BIOS with CrashFree BIOS 2
The CrashFree BIOS 2 auto recovery tool allows you to restore BIOS from the motherboard support CD, or from a floppy disk that contains the BIOS file, in case the current BIOS on the motherboard fails or gets corrupted.
Prepare the support CD that came with the motherboard or a floppy disk that contains the motherboard BIOS before proceeding with the BIOS update process. If you have saved a copy of the original motherboard BIOS to a bootable floppy disk, you may also use this disk to restore the BIOS. See section 2.1.1 Creating a bootable floppy disk.
To recover the BIOS from a floppy disk:
1. Boot the system. 2. When a corrupted BIOS is detected, the following screen message appears.
Bad BIOS checksum. Starting BIOS recovery. Checking for floppy.
3. Insert a floppy disk that contains the original or the latest BIOS file for this motherboard. If all the necessary files are found in the floppy disk, the BIOS update process continues.
Make sure that the BIOS file in the floppy disk is renamed as P4P800X.ROM.
Bad BIOS checksum. Starting BIOS recovery. Checking for floppy. Floppy found! Reading file P4P800X.ROM. Completed. Start flashing.
DO NOT shut down or reset the system while updating the BIOS! Doing so may cause system boot failure!
2. When the BIOS update process is complete, reboot the system.
To recover the BIOS from the support CD:
If there is no floppy disk found in the drive, the system automatically checks the CD-ROM.
3. Place the support CD in the CD-ROM. The support CD contains the a working BIOS for this motherboard.
Bad BIOS checksum. Starting BIOS recovery. Checking for floppy. Floppy not found! Checking for CD-ROM. CD-ROM found. Reading file P4P800X.ROM. Completed. Start flashing. DO NOT shut down or reset the system while updating the BIOS! Doing so may cause system boot failure!
The recovered BIOS may not be the latest BIOS version for this motherboard. Visit ASUS website (www.asus.com) to download the latest BIOS file.
BIOS Setup program
This motherboard supports a programmable firmware hub (FWH) that you can update using the provided utility described in section 2.1 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 may want to change the configuration of your computer in the future. For example, you may want to 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 of 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 <Delete> 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 first two failed. The Setup program is designed to make it as easy to use as possible. It is a menudriven program, which means you can 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 Default Settings item under the Exit Menu. See section 2.7 Exit Menu.
DMA Mode [Auto]
Selects the DMA mode. Configuration 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. Configuration options: [Auto] [Disabled] [Enabled]
32Bit Data Transfer [Disabled]
Enables or disables 32-bit data transfer. Configuration options: [Disabled] [Enabled]
2.3.5 IDE Configuration
The items in this menu allow you to set or change the configurations for the IDE devices installed in the system. Select an item then press Enter if you wish to configure the item.
IDE Configuration Onboard PCI IDE Operate Mode Enhanced Mode Support On IDE Detect Time Out (Sec) [Enhanced Mode] [S-ATA] 
Set [Compatible Mode] when Legacy OS (i.e. WIN ME, 98, NT4.0, MS DOS) is used.
Onboard PCI IDE Operate Mode [Enhanced Mode]
Allows selection of the IDE operation mode depending on the operating system (OS) that you installed. Set to Enhanced Mode if you are using native OS, such as Windows 2000/XP. Set to Compatible Mode if you are using legacy OS including MS-DOS, Linux, Windows ME/98/NT4.0. Configuration options: [Compatible Mode] [Enhanced Mode]
Enhanced Mode Support On [S-ATA]
The default setting S-ATA allows you to use native OS (Windows 2000/XP) on Serial ATA and Parallel ATA ports. We recommend that you do not change the default setting for better OS compatibility. In this setting, you may use legacy OS (Windows ME/98/98SE/NT4.0) on the Parallel ATA ports only if you did not install any Serial ATA device. The P-ATA+S-ATA and P-ATA options are for advanced users only. If you set to any of these options and encounter problems, revert to the default setting S-ATA. Configuration options: [P-ATA+S-ATA] [S-ATA] [P-ATA]
The Enhanced Mode Support On appears only when the item Onboard IDE Operate Mode is set to Enhanced Mode.
IDE Port Settings [Primary P-ATA+S-ATA]
Allows selection of the IDE ports to activate if you are using a legacy operating system. Set to [Primary P-ATA+S-ATA] if you wish to use the primary Parallel ATA and Serial ATA ports, or set to [Secondary P-ATA+SATA] to enable the secondary P-ATA port instead. Setting to [P-ATA Ports Only] disables the two Serial ATA ports supported by ICH5. Configuration options: [Primary P-ATA+S-ATA] [Secondary P-ATA+S-ATA] [P-ATA Ports Only]
The IDE Port Settings appears only when the item Onboard IDE Operate Mode is set to Compatible Mode.
IDE Detect Time Out 
Selects the time out value for detecting ATA/ATAPI devices. Configuration options:        
2.3.6 System Information
This menu gives you an overview of the general system specifications. The items in this menu are auto-detected by BIOS.
AMIBIOS Version Build Date Processor Type Speed Count
: 08.00.09 : 04/28/04
: Intel(R) Pentium(R) 4 Family CPU 2.40G : 2399MHz : 1
System Memory Size : 256MB
This item displays the auto-detected BIOS information.
This item displays the auto-detected CPU specification.
This item displays the auto-detected system memory.
Take caution when changing the settings of the Advanced menu items. Incorrect field values may cause the system to malfunction.
The Advanced menu items allow you to change the settings for the CPU and other system devices.
JumperFree Configuration CPU Configuration Chipset Onboard Devices Configuration PCIPnP USB Configuration
Adjust system frequency/voltage
2.4.1 JumperFree Configuration
Configure System Frequency/Voltage AI Overclock Tuner CPU VCore Voltage [Standard] [Auto] Select the target CPU frequency, and the relevant parameters will be autoadjusted. Frequencies higher than CPU manufacturer
AI Overclock Tuner [Standard]
Allows selection of CPU overclocking options to achieve desired CPU internal frequency. Select either one of the preset overclocking options. Configuration options: [Manual] [Standard] [Overclock 5%] [Overclock 10%] [Overclock 20%] [Overclock 30%]
Selecting a very high CPU frequency may cause the system to become unstable! If this happens, revert to the default setting.
CPU VCore Voltage [Auto]
Allows you to select a specific CPU VCore voltage. The configurations depends on the type of CPU installed.
Refer to the CPU documentation before setting the CPU VCore voltage. A very high Vcore voltage may severely damage the CPU!
When you set the AI Overclocking Tuner item to [Manual], the related overclocking items appear.
Configure System Frequency/Voltage AI Overclock Tuner CPU Frequency DRAM Frequency AGP/PCI Frequency CPU VCore Voltage DDR Reference Voltage [Manual]  [Auto] [Auto] [Auto] [Auto]
CPU Frequency (MHz) [XXX] (value is auto-detected)
Indicates the frequency sent by the clock generator to the system bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed. The default value of this item is auto-detected by the BIOS. The values range from 100 to 400. Use the plus (+) or minus(-) keys to adjust the CPU frequency. Refer to the following table for the correct Front Side Bus and CPU External Frequency settings.
Table 2.4.1 FSB/CPU External Frequency Synchronization Front Side Bus FSB 800 FSB 533 FSB 400 CPU External Frequency 200 MHz 133 MHz 100 MHz
DRAM Frequency [Auto]
Allows you to set the DDR operating frequency depending on the CPU installed. Configuration options: FSB 400 CPU: [266 MHz] [Auto], FSB 533 CPU: [333 MHz] [266 MHz] [Auto], FSB 800 CPU: [400 MHz] [320 MHz] [266 MHz] [Auto]
AGP/PCI Frequency (MHz) [Auto]
Allows you to adjust to a higher AGP/PCI frequency for better system performance and overclocking capability. Configuration options: [Auto] [66.66/33.33] [75.00/37.50] [80.00/40.00]
Selecting a very high AGP/PCI frequency may cause the system to become unstable! If this happens, revert to the default setting.
DDR Reference Voltage [Auto]
Allows you to select a specific DDR Reference voltage. Configuration options: [Auto] [2.658V] [2.551V]
2.4.2 CPU Configuration
The items in this menu show the CPU-related information auto-detected by BIOS.
Configure advanced CPU settings Manufacturer: Brand String: Frequency : FSB Speed : Cache L1 Cache L2 Cache L3 Intel Intel(R) Pentium(R) 4 Family CPU 2.40G 2399 MHz 533 MHz
This should be enabled inorder to boot legacy OSes that cannot support CPUs with extended CPUID functions.
: 8 KB : 512 KB : 0 KB
Ratio Status: Locked Ratio Actual Value: 18 Max CPUID Value Limit: [Disabled]
If you are using an unlocked CPU, the item CPU Ratio appears. You may select your desired ratio from the available options.
CPU Ratio 
Sets the ratio between the CPU Core Clock and the Front Side Bus (FSB) frequency.
If an invalid ratio is set in CMOS, the actual and setpoint values may differ.
Max CPUID Value Limit [Disabled]
This item allows you to enable or disable support of older OS for CPU ID maximum value limit. Configuration options: [Disabled] [Enabled]
Hyper-Threading Technology [Enabled]
This item allows you to enable or disable the processor Hyper-Threading Technology. Configuration options: [Disabled] [Enabled]
ECP Mode DMA Channel [DMA3]
Allows you to set the Parallel Port ECP DMA. This item appears only when the Parallel Port Mode is set to ECP. Configuration options: [DMA0] [DMA1] [DMA3]
Parallel Port IRQ [IRQ7]
Configuration options: [IRQ5] [IRQ7]
Onboard Game/MIDI Port [Disabled]
Allows you to select the Game Port address or to disable the port. Configuration options: [Disabled] [200/300] [200/330] [208/300] [208/330]
2.4.5 PCI PnP
The PCI PnP menu items allow you to change the advanced settings for PCI/PnP devices. The menu includes setting IRQ and DMA channel resources for either PCI/PnP or legacy ISA devices, and setting the memory size block for legacy ISA devices. Take caution when changing the settings of the PCI PnP menu items. Incorrect field values may cause the system to malfunction.
Advanced PCI/PnP Settings WARNING: Setting wrong values in below sections may cause system to malfunction. Plug And Play O/S PCI Lantency Timer Allocate IRQ to PCI VGA Palette Snooping PCI IDE BusMaster IRQ3 IRQ4 IRQ5 IRQ7 IRQ9 IRQ10 IRQ11 IRQ14 IRQ15 [No]  [Yes] [Disabled] [Enabled] [Available] [Available] [Available] [Available] [Available] [Available] [Available] [Available] [Available]
NO: Lets the BIOS configure all the devices in the system. YES: Lets the operating system configure Plug and Play (PnP) devices not required for boot if your system has a Plug and Play operating system.
Plug and Play O/S [No]
When set to [No], BIOS configures all the devices in the system. When set to [Yes] and if you installed a Plug & Play operating system, the operating system configures the Plug & Play devices not required for boot. Configuration options: [No] [Yes]
ASUS P4P800-X Motherboard
PCI Latency Timer 
Allows you to select the value in units of PCI clocks for the PCI device latency timer register. Configuration options:        
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 palette snooping feature informs the PCI devices that an ISA graphics device is installed in the system so that the latter can function correctly. Setting to [Disabled] deactivates this feature. Configuration options: [Disabled] [Enabled]
PCI IDE BusMaster [Enabled]
Allows BIOS to use PCI bus mastering when reading/writing to IDE devices. Configuration options: [Disabled] [Enabled]
IRQ xx [Available]
When set to [Available], 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: [Available] [Reserved]
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