Regular system crashes and freezes

hi,
My system crashes regularly but i cant figure out why this is happening.I had problem with my 1gb 2900pro drivers i sold the card and installed a fresh copy of windows xp pro.Now i am using an ati 9200 pro pci temporarily;but still having system crashes or freezes.This is really frustrating.
My system specs are:
Antec quattro 850w
Asus p5k-e wifi
1 x 2gb corsair xms pc2-8500
Q6600 go slacr @2.4ghz (zalman cnps 9700nt)
3 x 500gb hitachi sata
Antec 900
The crash happens usually when playing games,watching movies or songs.I think the problem is with the psu or the Hdd.Pls share ur thoughts.thx in advance.:help::help:

Download and run memtest86+ as a first step to check that there are no memory problems.

Check you are using tyhe latest drivers for the graphics card.

If you are overclocking, reset to standard settings.

If you suspect the PSU the only realistic way to check it out is by substitution.

You could get Core Temp and see if you're cpu is overheating... it could be that the heat sink isn't on quite right.

Quote:

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Originally Posted by Salazaar

You could get Core Temp and see if you're cpu is overheating... it could be that the heat sink isn't on quite right.

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no i have monitored the cpu temps no problems.they are well under 30 c idle and under 45 c load.thx

What voltage is the memory set to? If your mobo defaults to something like 1.8v it could be too low...?

i had this error when i did a cpu stability test.system crashed and restarted.

Problem caused by Device Driver

You received this message because a device driver installed on your computer caused the Windows operating system to stop unexpectedly. This type of error is referred to as a "stop error." A stop error requires you to restart your computer.

More information

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Problem report summary


Problem type
Windows stop error (a message appears on a blue screen with error code information)

Solution available?
No

What does this problem mean?
Windows has encountered a problem it cannot recover from and it needs to be restarted

Cause
Unknown

Computer symptoms
A message appears on a blue screen with error code information (for example: 0x0000001E, KMODE_EXCEPTION_NOT_HANDLED)

Additional steps for you to take
Please continue to send problem reports so analysts at Microsoft can study and try to correct the problem as quickly as possible

Quote:

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Originally Posted by Salazaar

What voltage is the memory set to? If your mobo defaults to something like 1.8v it could be too low...?

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hi Salazaar i dont know is this what u asked for

http://img408.imageshack.us/img408/4200/memoryge5.jpg
http://img404.imageshack.us/img404/9210/memory1oc3.jpg
http://img408.imageshack.us/img408/3755/memory3yv2.jpg


thx

I don't think it actually says there (if I'm reading it right), I was talking about the voltage setting in the BIOS, it's fairly normal for it to default to 1.8v but some (most) higher spec memory needs to run at around 2.1v. In fact if you read off the timings table, your RAM requires 2.1v to run at 533Mhz.

It should be fairly easy to get to on a P5K (Not that I'm guaranteeing that's the root of your problems).