Weird GPU error

[TheTross]

If anyone can shed any light on this I'd be grateful, as I'm stumped.

Usually when I switch my rig on I am greeted by this rather decorative affair a few seconds after sitting at the welcome screen:

The PC then seems to get stuck in a reboot loop. A hard reboot doesn't tend to solve the problem, but switching it off and leaving it for a few minutes before switching it back on again does. Once it's playing nicely I can throw anything at the rig and it performs flawlessly.

Spec:

Q9550 @ 3.4
GTX280 @ stock (285.58)
4GB
Corsair HX620W PSU

No WUs for any projects result in errors, so I'm pretty sure that the system is stable. It just seems like this rig doesn't like starting up on these cold mornings

 

[TheTross]

Nope, it did it again this morning

Will try updating the BIOS at some point, though I'm leaning towards it being software related so I'll try different nvidia drivers first.

Edit: CaptainUnlikely, the motherboard is an Asus P5Q-E.

 

[TheTross]

Well, it happened again just as I was posting a reply in another thread

I took the opportunity to update the BIOS, so that's one thing ticked off my checklist. I'll try your other suggestions too CU, but for the time being I've disabled the GPU app in BOINC to see if it still does it.

 

[TheTross]

Just a brief update: it appears to be the 280 that's the problem, as I've swapped it with my 250 and everything seems to be working normally again *touches wood*.

 

[TheTross]

It was a right pain this morning: every time I tried to use this PC I ended up looking at a garbled display, so I just gave up. I did remove the overclock as you suggested but that didn't help. As you say, hopefully that's that but it's a strange one