Radeon 4870 x2 problem

[me99909]

OS: Windows Vista (64-bit)

CPU: AMD Phenom 9950 Quad-Core 2.6 Ghz

Graphics Card: Powercolor Radeon 4870 x2

Motherboard: M3A-H/HDMI

Power Supply: PC Power & Cooling S75CF 750W

RAM: G.SKILL 2GB x 2

Ok, I've had this successfully running for about a month and a half but today I started it up and it had trouble, starting up for a short bit then turning off repeatedly. I figured that out, I took out the CMOS battery and put it back, and it started up just fine. Then it comes to the login screen and everything is blue/green, there being no red channel. I switched out DVI cables, reinstalled the latest drivers, and messed around with the settings but nothing fixed it. I did find that at high resolutions on the desktop, I'd get pale red artifacts anywhere there was supposed to be red. And when I opened up WoW and reset the graphical settings (didn't matter what, so long as WoW had to reload the interface) it worked just fine.

So I reinstalled Windows, the installer wasn't missing the red channel and I got a fresh copy of Windows, everything seemingly working. So I install the latest drivers again, and this happens... again. Arg! What am I doing wrong?

 

[VonBlade]

Possibly installing the latest drivers.

ATIs forum is awash with people having issues with X2s and more than 4GB RAM.

http://forums.amd.com/game/categories.cfm?catid=279&forumid=11

 

[sammytomjohn]

possibly you're stock cooling isn't enough for 4870x2??? they have heat issues!!

 

[me99909]

Well, I suppose I can try that but do you have the links to an older set of drivers? That site is a bit difficult to figure out which link I want without red >>

Its ran fine for a month and a half, I don't see why it would suddenly overheat now.

 

[me99909]

Gah, its so obvious.

Bad DVI cable.

 

[zak4994]

Gah, its so obvious.

Bad DVI cable.

Yep.