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From: Dr.White on 12 Jan 2008 21:15

<mechphisto(a)gmail.com> wrote in message
news:697f1e92-6159-4f2b-b7d6-41a8397f1203(a)l1g2000hsa.googlegroups.com...
>I have a friend who recently built a new PC, and he's experiencing
> this odd issue where the system will lock up and reboot itself any
> time he exits from playing any decently hardware intensive game, like
> "Battlefield 2" or later.
>
> He has an AMD Athalon 64 X2,
> POWERCOLOR 26XT512M/D3HDMI Radeon HD 2600XT 512MB 128-bit GDDR3 PCI
> Express x16,
> GIGABYTE GA-M61P-S3 AM2 NVIDIA GeForce 6100 ATX AMD Motherboard
> 2GB or DDR2 RAM.
> Every calculator I've used says he needs 350-420 watt PSU, he has a
> 520 watt.
>
> I've watched his temps via the mobo software, Speedfan, and other
> programs and they never climb very high. Even in the middle of a game,
> after an hour, his CPU never gets above 50, his Northbridge sometimes
> gets to 60 or 65 but usually 55-60, and his video card never gets
> above 55 or 58C. So I don't think it's an over heating thing.
>
> I've run memtest, drive tests (PartitionMagic, badblocks, checkdsk,
> etc), video card hardware checkers, SiS Sandra, and everything seems
> to say the hardware is fine.
>
> We tried completely formatting and reinstalling Win XP Pro. tried the
> default drivers, tried Windows update drivers, and tried Catalyst
> drivers, and there's no change.
>
> He never crashes IN the games and programs, just immediately upon
> exiting them. No bluescreen, just reboots and auto-chkdsk's upon
> bootup.
> Any ideas what I should do or look into at this point?
> Thanks for any advice!
> -Liam

What about trying the computer just using the onboard Geforce 6100
graphics - which I presume you have already disabled in BIOS. The computer
should have been setup to ignore onboard graphics in BIOS before Windows was
installed.

If it shuts down even with the onboard graphics you can rule out the HD2600
as the culprit, at least.

Last shot in the dark - my computer used to reboot in certain points in
games and in Windows XP's device manager. Turned out to be a crappy old IDE
cable that the DVD drives were using - an old 40-core cable instead of the
recommended 80-core.

Dr.White.


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