Help with trouble-shooting...

[wilko49]

Hi all, I've been trying to help my friend put together his rig, but it's not the most stable beast. Spec is:

i5 2500K (not overclocked yet)
Gigabyte z68-ud4
Corsair Vengeance low profile (2x4GB)
2x Palit GTX580 3GB
3x LG 3D monitors
OCZ ZX 1250W
OCZ 240GB Vertex
WD Green 3TB

Problems so far have been:

• System powers down immediately upon starting a Furmark stability test when SLI is enabled (except for one time when it was not full-screen). Does that have anything to do with this http://www.geeks3d.com/20101109/nvidia-geforce-gtx-580-the-anti-furmark-dx11-card/ ?
• It also powered down during a game of Portal 2 using NV surround after about 7 minutes.
• The NVidia drivers crash fairly often, despite re-installing.
• There was some horrible cap-whine, I think from the PSU, when running the WEI.
• Keyboard and mouse also lose power frequently, which can only be fixed by rebooting the machine.

So... I'm thinking maybe there's an issue with the PSU, but I can't test it until later in the week. Anyone have a better diagnosis?

 

[wilko49]

Ah really? I hadn't heard of issues with Gigabyte's boards.

The system will run Furmark as long as SLI is disabled, and won't power itself off - however, all of the other issues remain. I don't doubt 1250W is enough to power the system, but rather believe the PSU may be faulty and hence not providing that full power.

I'm thinking it could also be a motherboard fault... will have to cannibalize my rig to test.