I am having issue with my Asus P5B Motherboard with Intel Core 2 Duo 1.8GB CPU, no overclocking. It has 4GB of Kingston Value RAM with default settings and Windows 7 Professional loaded. The power supply is the Antec Earthwatt 500W. Hard drive is WD Black Caviar 1TB. It freezes sometime when I power on the computer at the POST screen. I have to power off and power on a few times until I get one success boot up to Windows. On other times, it won't freeze right away. I wake up the computer from hibernation and it works for a few minutes and it suddenly froze. I it doesn't freeze within the first 5 minutes, it will be good until I shut off or hibernate the machine. (about 10+ hours uptime). I have the same problem from Windows Vista. It was upgraded to Windows 7 now and I still experienced the same issue. I tested with Memtest and the memory has no issue. I swapped with different memory chips, Power Supply, Hard disk and upgraded to the latest bios. I also cleared the CMOS.and it does not make any difference. I am not quite sure what else I could do besides replacing the motherboard. Any suggestions?

CPU P5KPL-AM Valuable Intel G31 uATX solution with FSB overclocking 1600MHz!
- Intel® Core™2 Quad Ready
- Intel® 45nm CPU Ready
- FSB 1600(O.C.)/1333/1066/800 MHz
- Intel® G31/ICH7
- Dual channel DDR2 1066(O.C.)/800/667
- EZ Flash2 & CrashFree BIOS3
- 8 Channel High Definition Audio
Intel® Socket 775 Core™2 Quad/Core™2 Extreme/Core™2 Duo/Pentium® D/Pentium® 4/Celeron® E1000 Series and Celeron 400 Series Intel® Hyper-Threading Technology ready
*Refer to www.asus.com for Intel CPU support list
Chipset Intel® G31 Intel ICH7
Front Side Bus 1600*/1333/1066/800 MHz (*1600 is overclock speed) Memory 2 x DIMM, Max. 4 GB, DDR2 1066(O.C.)/800/667 Non-ECC,Un-buffered Memory
Dual Channel memory architecture
*Overclock speed
**Refer to www.asus.com or user manual for Memory QVL (Qualify Vendor List)
***When installing total memory of 4GB capacity or more, WindowsR 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended. Expansion Slots 1 x PCIe x16
1 x PCIe x1
2 x PCI
VGA Integrated Intel Graphics Media Accelerator (Intel® GMA 3100)
Max. resolution:2048x1536X32bpp, Horizontal:127.5KHz Vertical:85Hz Storage Southbridge
1 xUltraDMA 100/66/33
4 xSATA 3 Gb/s ports
LAN Realtek RTL8102EL 100/10 LAN
Audio VIA VT1708B 8 -Channel High-Definition Audio CODEC
Anti-Pop Function
Jack-detect & Multi-Streaming
Support S/PDIF Out connector USB 8 USB 2.0 ports (4 ports at mid-board, 4 ports at back panel) Overclocking Features SFS (Stepless Frequency Selection)
- FSB tuning from 200MHz up to 600MHz at 1MHz increment
Overclocking Protection
- ASUS C.P.R.(CPU Parameter Recall)
Special Features ASUS MyLogo 2
ASUS EZ Flash 2
ASUS CrashFree BIOS 3
ASUS Q-Fan
Back Panel I/O Ports 1 x Parallel
1 x VGA
1 x PS/2 Keyboard
1 x PS/2 Mouse
1 x LAN(RJ45) port
4 x USB 2.0/1.1
1 x COM port
8 -Channel Audio I/O
Internal I/O Connectors 2 x USB connectors support additional 4 USB ports
1 x Floppy disk drive connector
1 x IDE connector
4 x SATA connectors
1 x internal speaker connector
1 x S/PDIF Out connector
1 x CPU/ Chassis/ Power Fan connector
1 x Front panel High Definition audio connector
1 x Chassis Intrusion connector
1 x CD audio in connector
24-pin EPS 12V Power connector
4-pin ATX 12V Power connector
1 x System Panel connector
BIOS 8 Mb Flash ROM
DMI 2.0
AMI BIOS
PnP
WfM 2.0
SM BIOS 2.5
ACPI 2.0
Manageability WOL,PXE,RPL,WOR ,PME Wake Up Accessories User's manual
1 x UltraDMA 133/100/66 cable
1 x Floppy disk drive cable
1 x SATA cable
1 x SATA power cable
I/O Shield
Support Disc Drivers
ASUS PC Probe II
Anti-virus software (OEM version)
ASUS Update
Form Factor uATX Form Factor
9.6 inch x8 inch ( 24.4 cm x 20.3 cm )
hope this helps

This is older type of motherboard, made by Asus and supporting Intel Pentium 4, 775pin processor (LGA775). It will support DDR2 to the value of 4GB, it will support 64bit operating system. it have single PATA port, SATA is present but no RAID configuration.

This motherboard requires PCI video card, there is noAGP port and no build in graphics. System is based on Intel G31 Express chipset.

Theoreticaly this motherboard should accept all Intel Pentium for 775 pin processors, albeit early production may need BIOS flush with latest BIOS.

List of processors accepted:

Intel Pentium 4, Intel Pentium D, Intel Pentium Core 2 Duo, Intel Pentium Core 2 Extreme and Intel Pentium Core 2 Quad.

If you need more information or drivers for this particular board, please visit this site adn select exact model:

http://support.asus.com/download/download.aspx?SLanguage=en-us

Do not hesitate to leave feedback how did you go with this advice :-)

Hi,

Here are the motherboard's processor specs >>>>

Intel Quad-core CPU Ready
LGA775 socket for Intel Core 2
Extreme / Core 2 Duo / Pentium D / Pentium 4 / Celeron D
Processors
Compatible with Intel 05B/05A/06 processors
Intel
Hyper-Threading Technology ready
64-Bit Processing Technology

Yes the motherboard can be used with a 32 bit or a 64 bit processor.


Regards..

HI,

The only Thing To Do, is view both Motherboards, user Manuals.
To see The boards CPU Support List.
It could be to do with, certain Motherboards Supporting, certain CPUs.
I.e a 533mhz cpu, would not run on a Motherboard that supports 400mhz. The Systems Bios, May cause Other Problems.
If your getting a Black Screen, is it a possible Graphics/Ram Problem, Rather Than The CPU ??

Mike @ Compurepair.

Make sure all Vista updates have been installed, and check the ASUS website for any bios updates. I believe that motherboard had a known issue with stand bye.

buy any motherboard BUT asus.
asus tech support is rubbish.
i run my system on an ASROCK motherboard.
excellent boards, 2500mhz bus, can handle any cpu, most have 4 ram slots.

both of you just need to install the roll back BIOS again sometimes New bios dont work for the I/O devices.

download the old version of the BIOS again and udate it again it will fix your problem Hopefully.

You can buy a 3.02 pentium 4 processor and need not change any thing else. On the other hand try changing your hard disk with a one with smaller capacity such as 80 GB make it primary with the windows partition not exceeding 15 GB . Make this drive (80 GB )primary and other one secondary.Increase the virtual memory size of your system and for sure you wont need to buy any thing or be depressed anymore.

It sounds like you're trying to overclock your CPU, and you have exceeded what the CPU is capable of, under the current conditions. When you start the computer, enter BIOS setup (e.g. press the DEL key), and adjust the CPU settings to default. If you're not sure how to do this, choose the "LOAD OPTIMAL SETTINGS" or "LOAD DEFAULT SETTINGS" option from the main BIOS menu. If you are not getting this error until after Windows has started, then there is software installed that is trying to overclock the CPU for you. Uninstall it. It may be a program provided by Asus, or may be a third-party program. It will probably have "tweak" or "overclock" in the name. Overclocking can achieve an increase in performance, but will void the warranty, and does reduce the lifespan of the parts, and tends to make Windows crash more often. It can cause immediate failure of the parts. It should only be done if you understand and accept the risks, and have decided the reward is worthwhile. For most users, it is not worth it.