Persistent PC problems (blue screen)

[platinum87]

Full Specification

Abit NF-M2SV nForce 6100 Micro-ATX (Socket AM2)
AMD 4800 AM2 @ 2.5ghz STOCK!
Corsair 2GB DDR2 XMS2-5400C4 TwinX (2x1GB)
200GB IDE HDD
Sata DVD-RW
Antec NSK 3480 Micro ATX Case - 380W Earth Watts PSU

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Description of problem

Vista installed fine, everything is fine except i get crashes after a few hours, such as 5-6.. blue screen and reboot, sometimes problem repeats and couple days later its fine..

No overlocking of any kind..
Vista 32bit and XP 32bit, with All drivers and updates installed makes no difference.

Ive run Prime, both FFT's and Blend, for a few hours, and temps are fine, no crash or errors...

the PC crashes when its idle, (i leave it on overnight to see if it would crash, and it does)..


What ive done

Memtest for few hours, no errors, on 1 stick , 2 sticks, and on different slots for 1 stick, overall 10 hours of memtest.

-- Returned "faulty" motherboard to OCUK, who said it passes prime and memtest? and they charged me another £20.. they said they updated the bios aswell.

-- Run HDD test, which passed (manufacturers software)

___________________________________________________________

... Im still convinced the motherboard is faulty because theres hardly anything else there, unless the power supply or sata DVD-RW can be causing the problem?

or the CPU? but ive underclocked it to 1.6Ghz and its still the same problem

im thinking about buying this http://www.overclockers.co.uk/showp...H AMD 740G (AM2) PCI-Express DDR2 Motherboard..


Any help?

Thanks in advance

 

[Tetras]

Try this tutorial to get more info on the BSOD minidumps:
http://forums.majorgeeks.com/showthread.php?t=35246

If they are somewhat random then it is likely to be a hardware fault. If they are mostly specific file(s) then you may have faulty driver(s) or conflict(s).