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No video detection after adding second graphics card.

Last response: in Graphics & Displays
January 21, 2012 4:00:38 PM

I had a completely working build with an Nvidia GTX 580 and I was using two monitors perfectly. I got a cheep ATI card from a friend and installed that as a second card alongside the Nvidia one because I wanted to see if I could get three displays working. When I tried booting the system, no video was recognized, but everything else seemed to be fine. So I removed the ATI card and tried booting with the Nvidia one again. Again, I can not get video to work. I tried booting on one stick of RAM and without the graphics card and everything seems to be fine, but I can't get any video.

Best solution

a b U Graphics card
January 21, 2012 4:59:20 PM

Try swapping in a know working PSU.
January 21, 2012 5:09:40 PM

The PSU works, it turns out I needed to update/re-install the BIOS via USB drive. It is working now with one card again.
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January 21, 2012 5:12:47 PM

Best answer selected by askSchwa.
a c 272 U Graphics card
a c 171 Î Nvidia
January 21, 2012 8:10:30 PM

This topic has been closed by Mousemonkey