Aplication crashes

[oc]

I have a problem. The system crashes every one hour or so. I works great and then boom it goes out to desktop and the application has cosed an error and must be closed...send/dont send to Microsoft message.

The system is xp pro sp2 32bit
gigabyte 965p-dq6 mbo
e 6400
x1950xtx
Seagate 320 Gb
Hiper 580 w ps
2 gb kingmax 800 mhz
None oc has been made on the machine and i tried this:
reinstal xp
changed g. card and ram
changed ps
tested cpu no errors and tested hdd no errors
3d mark 6 pases every time whit no problems
Can it be a mbo?
Anything else?
HELP

Im trying to play call of duty 4, airborne, crysis and bioshock and always the same error.

 

[dmroeder]

So this only happens when playing games?

Do you have the latest graphics driver? Have you tried a different graphics driver?

 

[oc]

catalyst 7.10 but ive tried aut of the box driver and 7.9 and 7.10 and nothing.

 

[akhilles]

Have you run memtest? Look up the game sites for patches/updates.

 

[atreyu]

Check your event log and in the "System" area and see what errors are logged there around the time the crash occurs.

Also check if DEP is enabled for all programs or only for Windows files. To check DEP go to "My Computer --> Properties -->Advanced--> Performance (Settings)-->Data Execution prevention

 

[oc]

Ok....here is an update ive replaced hdd- no change, then ive tried DEP as Atreyu said but nothing still, and now ive changed cpu and im still testing it. il keep you posted. If anyone has any idea please share it, ANY idea, a will try anything.

 

[oc]

Its not the CPU!!!!!!!

 

[atreyu]

Are you seeing any errors in the System Error log ?