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7870 Graphics card not working in new Motherboard

Tags:
  • Graphics Cards
  • Motherboards
  • Graphics
Last response: in Graphics & Displays
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August 11, 2013 6:41:31 PM

Alright guys got an interesting problem for you. I used to be rocking the AMD 8120 FX processor with the 970A-UD3 Gigabyte motherboard and I upgraded to the 4670k and AsRock Z87M-Extreme4. I'm using the 7870 His IceQ edition graphics card and after trying to get it to work on the new motherboard, I get no display. Tried all the PCIexpress ports on the mobo, tried different HDMI cables, Digital cables, and different monitors but nothing worked. I even swapped out the motherboard 3 different times at microcenter, but same problem each time. I put in my old 550Ti card and that works like a charm no problem, so now I think it's my 7870 card right? Nope! I plugged the card into my old 8120 and 970A-UD3 configuration and it works and I get a display! The only difference in slots is 2.0 and 3.0. Also I don't get display from my intel onboard graphics either. Both times I've had the latest drivers for my graphics card, and both boards I've had the latest BIOS updates and driver updates. I'm at a loss here lol. Please help!

More about : 7870 graphics card working motherboard

August 11, 2013 6:49:10 PM

Are you using the same PSU?
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August 11, 2013 7:02:05 PM

016ive said:
Are you using the same PSU?


I'm using the Corsair GS700W PSU, but I didn't use that same PSU to power my AMD configuration I used an old one I had laying around. With this power supply and the 7870 in my Intel configuration the Graphics card does power on and the fan does spin and everything, it's just that I don't get a display whereas the 550ti does get the display in the Intel configuration.
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August 11, 2013 11:41:19 PM

Figured it out after hours of messing around in the BIOS. I changed something with the chipset involving the PCIe lane turned from auto to Gen 2 out of the three generations. Gen 1 and 2 both worked but not 3. Auto also doesn't work. All fine and dandy now though! :) 
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August 11, 2013 11:57:24 PM

At least you got it working again!
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August 12, 2013 9:59:28 AM

Doesn't the 7870 support PCI Express 3.0?!
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August 12, 2013 10:06:46 AM

016ive said:
Doesn't the 7870 support PCI Express 3.0?!


it says it does! that's why I'm surprised it wasn't working on gen 3. just gen 2 and 1 only I guess. so strange. I suppose that's why it worked on my amd config because it's a gen 2 slot
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August 12, 2013 10:27:52 AM

I believe this would have to do with UEFi bios.
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