HELP! 2nd GPU powered but not showing in device manager.

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RagerMager

Commendable
Jun 10, 2016
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Hello guru's, I've had a hell of a week...
Firstly my Specs;
CPU: 3770k @stock atm (3.5GHZ)
MOBO: z77x-ud5 th
RAM: 2x8gig G.skill tridentx 2400mhz, currently not in XMP profile
GPU: 2x7970 Xfire
PSU: Enermax 1200W

I have been running this setup for a few years, usually overclocked to 4.7Ghz and GPU's running at 1175/1600 but recently upon updating to Crimson drivers, my PC locked up amidst installing the drivers and after that not recognising my second GPU giving me a code 31 error. i finally fixed the issue by updating MOBO BIOS to latest (F12) and re-installing original drivers, then properly uninstalling old drivers using DDU, then installing latest Crimson drivers. I was stoked because it took me a week to figure out how to take my second GPU out of limbo and back with proper drivers...

Until i loaded up a game. The game was Dayz as it was the only one i have installed atm and was only to see if 2nd gpu was working. The game started and showed 2nd GPU usage so i got ready to close the game and start my overclocks again. But before i could do anything my PC turned off by itself as though it lost power.

After rebooting, the 2nd card wont show in device manager and im not sure if its the card or my 2nd PCI slot thats not working. The card powers up (fan spinning) and yes ive inserted the 8 and 6 pin power cords correctly, card seated correctly etc.

So i took the card out and put it in the first slot with no success. cards fan run but no display. So i put my working card in the second PCI slot but still got no display after plugging HDMI cord into it.

So now im at a loss and not sure how to troubleshoot it further and any assistance would be greatly appreciated.

Thanks for spending the time to read...

Glenn.
 
Solution
Starcruiser
When you overclock, you are trading performance for the life span of your card. The higher temperatures and voltages associated with overclocking take their toll as the months and years go by. Eventually, inevitably, they will die.
The real question becomes, when it died what did it take with it? If you can get the working GPU to display and boot in the first slot, then that'll have to do for now until a more permanent solution can be done.
If you can't get any picture still with the GPU that was working before, the next thing to try would be a CMOS reset.
The next step is to test with another known working GPU.
If you still can't get a picture, then test with another power supply.
If by this point you still have nothing, when the...
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Starcruiser

Starcruiser

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May 18, 2013
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When you overclock, you are trading performance for the life span of your card. The higher temperatures and voltages associated with overclocking take their toll as the months and years go by. Eventually, inevitably, they will die.
The real question becomes, when it died what did it take with it? If you can get the working GPU to display and boot in the first slot, then that'll have to do for now until a more permanent solution can be done.
If you can't get any picture still with the GPU that was working before, the next thing to try would be a CMOS reset.
The next step is to test with another known working GPU.
If you still can't get a picture, then test with another power supply.
If by this point you still have nothing, when the card died it took the motherboard with it.
 
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