Dead video card?

[kellen]

2008 Mac Pro. Will boot and chime and all but just displays a grey screen on a 30" acd. Intermittently will boot to an apple loading screen with vertical grey stripes. Screen checked with second computer. Able to log in from mba and all files and drives work so I am thinking it's the Apple OEM 4870 video card.

Have cleaned it out, tried to boot with bare minimum, reset Pram. No improvement.

Sounds to me like a dead video card, but would like any other tips/hints.

Thanks in advance.

 

[pastrychef]

Yup. Looks like a dead video card to me too.

Only thing you might consider trying is to bake the video card. Do a search for "bake video card" and you should find some videos and instructions.

 

[ColdCase]

You may want to double check the red error LEDs on the RAM carriers (or anywhere else on the motherboard) before replacing the video card (unless you happen to have a spare handy). Its probably the video card, however, as you can remote screen share and all is well.

 

[kellen]

Yup. Looks like a dead video card to me too.

Only thing you might consider trying is to bake the video card. Do a search for "bake video card" and you should find some videos and instructions.

You may want to double check the red error LEDs on the RAM carriers (or anywhere else on the motherboard) before replacing the video card (unless you happen to have a spare handy). Its probably the video card, however, as you can remote screen share and all is well.

Thanks. No red LEDs on the ram carriers or motherboard. I can remote in to view files on all HDs including the booting hard drives, but the screen sharing isn't working. Just lags on the connect screen.

 

[ActionableMango]

+1 for bad video card

 

[kellen]

Changed out the video card, issue resolved. Just wanted to bump this in case others have similar problems.

 

[Macschrauber]

For a quick test: Remove the heat Sink and the fan, give the chips a quick blow (aprox 3 Seconds) with a heat gun in a circle motion. Apply new thermal paste and put it back together.

If it runs ok you should go for a new video card, this just a temp. fix...