Dead GPU?

FXL5 · 14 Jan 2011 at 18:04

New PC, new screen, I didn't build any of it except connecting the power and signal cables.

Boots fine, POSTs fine, I can load Windows etc...however. The screen's covered in a mass of horizontal white lines, all over the place except on some animations and where I move the mouse - I can sort of clear an area with the cursor, but it comes back. They're mostly static, not moving. It's the same in DVI and RGB, HDMI seems not to work at all (black screen).

The screen's fine, the computer itself seems to work...do I have a duff GPU, or am I missing something? Can't be a driver issue, the POST screen is affected.

EDIT: Oh, and it's stuck on a very low res, which I can't change. (Nothing else in the dropdown box)

Orcvader · 14 Jan 2011 at 18:07

Full system spec? Is the PSU supplying enough power to the GPU?

FXL5 · 14 Jan 2011 at 18:12

Full system spec here: http://www.overclockers.co.uk/showproduct.php?prodid=FS-176-OE
(Windows 7 HP, MSI GeForce GTX460)

I've opened a ticket in the Technical forum... but I did that at about half five yesterday, and the only person to say anything on the thread so far is me. As far as I know, it hasn't been read.

MikeeyMon · 14 Jan 2011 at 18:25

Have you tried using the monitor on a different desktop, input etc? I know you said it is not that but it is worth a try.

Have you got any way to use a redundant GPU to test in your motherboard? or use the GPU in another system?

It's best to limit things out of the equation first if possible.

FXL5 · 14 Jan 2011 at 18:45

I've run several tests - DVI cable gives symptoms as above. RGB cable gives the same, possibly slightly worse. HDMI... doesn't seem to give any signal at all, not sure what's going on there.

The monitor is fine in itself, it arrived a few days before this desktop, and works as a secondary for both my laptop and my father's desktop (unfortunately an all-in-one, there are no other graphics cards in the house, at all. Nor monitors, come to think of it. Not a techy enough household, I'm afraid, they're all laptops.) It still works as such, so whatever this input is, it's not causing damage. (I hope)

I've re-installed the graphics card drivers, just to check - no change. System seems to function ok otherwise, so I don't think it's the RAM, CPU or mo:bo:.

FXL5 · 14 Jan 2011 at 19:06

Device manager says something along the lines of "Windows has stopped this device because it reported problems - code 43, Value 0000002b - Unknown Device". I think perhaps the ? in the title of this thread is redundant.

Orcvader · 14 Jan 2011 at 19:36

Sounds like the GPU memory is dying, I would RMA it.

FXL5 · 14 Jan 2011 at 20:02

Beginning to come to that conclusion myself (RMA, that is, I didn't know that GPU memory could die). Thanks, I'll webnote the relevant authorities.

Really annoyed about this. I was so hopeful that I'd finally have a computer that functioned properly first time...

EDIT: Yup, just died completely - no picture at all on the monitor. Damnit.