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Windows 7: Monitors wont display at all when HD 7870 is hooked up

19 Mar 2013   #1

Windows 7 Home Premium (64 bit)
Monitors wont display at all when HD 7870 is hooked up

So I bought an HDE 7870 put it in the proper 3.0 PCI express slot. I put in the power cables (Card had 2 6-pin inputs), one was 8pin>6+2pin with the 2pin just left out (no room) and the other 6-pin input I used an adapter that drew power from 2 molex connections off of an already present cable.

After powering it up none of the displays would come on at all, even if the displays were using inputs from the motherboard and not the card.
I then disconnected the 2 6-pin power cables from the card and powered it up again, and of course the monitors would go back to working with the video card no longer powered.

Anybody know why I can't get any video when the Video card is hooked up?
I'm using an 3570k i5 processor, AsRock Extreme4 motherboard, and 600W Modular PSU if that matters at all.

EDIT: Only took a few hours of frustration for something to click in my brain.

OK. So originally I couldn't get ANY monitors/ports to work when I had the Video Card installed. And in an attempt to fix this I took it out and tried installing the drivers first and then RE-installing the Video card again, and it failed since it couldn't detect the card (it was unplugged, so I could see my monitors again).

Well the problem was that instead of my BIOS being set to "INTEGRATED" graphics, it was trying to be smart and Auto-correct and set the graphics to PCI-Express for me. So here are the steps taken to alleviate this specific problem.
1. Remove power cables from Video Card so it could boot up with monitors working
3. Save and Exit, Shut Down when finished.
4. Re-connect Video Card power cables and turn computer on
5. Insert Driver CD (Now that it's booted properly AND can detect the card, the CD will now install the proper drivers).
6. Repeat #2 but set to PCI-EXPRESS rather than INTEGRATED.

Also this might have been avoided had I just tried to Download the drivers the first time rather than using their handy-dandy installation disc, though I'm not 100% sure.

My System SpecsSystem Spec


 Monitors wont display at all when HD 7870 is hooked up

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