rhinoboo wrote:
> I've just built a new pc and I'm getting random reboots too. my spec is
> as follows...
>
> Vista Ultimate 32bit
> Intel Core 2 Duo 2.66GHz
> Abit AB9 Pro Motherboard
> OCZ 2GB (2 x 1GB) PC2-6400C4 Dual Channel Platinum
> BFG GeForce 8800 GTS OC2 320MB
> SATA 2 300GB Seagate Barracuda
> Corsair HX 620W ATX2.2 PSU
>
> My rig is water cooled and has fans, so I know it's not a temprature
> thing. The 620W power supply was £100 and has very good reviews so I've
> got more then enough juice. I've swapped the memory sticks with a
> friends pc but still it reboots. I've tried different Nvidia drivers
> including beta drivers, I've even tried swappig the video card with a
> friend who has the same card. I've formatted it several times, tried
> installing vista onto a spare 200gig IDE drive but still no joy, I even
> flashed my motherboard bios which I think has made the random reboots
> less frequent but can't really be too sure.
> Being Vista the memory dumps are usless and don't give me any
> explination to why it unexpectially shut down. So it could be the
> motherboard or cpu? but I'm hoping it's just a vista issue and that the
> upcomming release of service pack 1 will help.
>
> Any ideas?
>
>
How frequently?

Try booting in safe mode and running some stuff - if it does not reboot
then hardware looks OK and it points to a driver issue...?

It could be temperature - no really it could... check the waterblocks
are all seated correctly and check all the fan's airflow - no reversed fans?

Unplug/remove anything you can from the system and try running as an
absolute minimum sytem... add bits until it starts falling over.

Maybe boot off a Linux Live CD/DVD (Ubuntu/Knoppix etc) and run as a
Linux system... play a few card games and see if it reboots... this will
eliminate all possible Windows OS/driver issues...

If it still reboots in Linux it must be hardware/temperature/memory related.

Can't think of any other approaches for now...

Guy