No useful output from graphics card.

[_PD_]

Hi,

I tried to install a 6800GT (AGP) into my MSI K8N Neo2 Platinum, but upon power on I get nothing but a mess of white and grey pixels.
It is second hand from someone who is confident it worked before (and I can trust this person, they aren't having me on).
I am using a Thermaltake 480W PurePower, on which I used a clean Molex channel.
I uninstalled the old drivers.
I reset the CMOS
I checked for dust.
I tried different monitors/outputs.
The fan powers up, and I get standard "everything's OK" bleep. It continues loading, passes POST, etc, just shows a mass of pixels. You can't even begin to make out what is on the screen.
I used all correct static precautions.
And finally, my 9800Pro works with no problems in the same slot, off the same molex.

Any ideas?

 

[vapor matt]

only way to check is to install the card in another PC not yours and see what is displays! if its the same in another PC chances are its a duff card!

 

[_PD_]

'fraid I don't have another PC to test it in.
Nothing I can do, then?

 

[ACESHIGH]

You seem to have taken all the correct precautions & with the 9800pro working, it does seem like the 6600GT is a gonner.

 

[andyportess]

not a Leadtek by any chance is it?

 

[KadreMoD]

I had the same problem with a LeadTek 6800. It was perfect for about 20 minutes then suddenly died on me with white/purple/black artifacts on the screen. The artifacts stayed there even when the computer was booting up. I had to RMA it . New one works fine though