Second GPU NOT working while crossfired. Please help!

T-Billy

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Feb 3, 2015
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4,510
Hey everyone, I've done enough searching over the past week and feel like I've read every thread related to the issue twice, however nothing is working for me.

I'm running two AMD Radeon HD 7870s crossfired right now. The problem is the first card is receiving all of the load when tracked on GPU-Z, while the second card never goes over 0% load, 300 MHz core, and 150 MHz memory clock. I would really like for these cards to work simultaneously, sharing the load as I've seen many others achieve, however when I'm gaming tracking the second card on GPU-Z there is just no activity.

I've tried the usual fixes: switched the cards, used a different crossfire bridge, made sure drivers and whatnot are up to date. It detects the card, acknowledges it is there and crossfired, but it just doesn't seem to do anything with it.

I'm going to attach some screenshots of CCC and my GPU-Z setup, if anyone needs more system information from me please let me know I'll be happy to provide.

imgur album

First two photos are from CCC.
second two are the first and second GPUs in GPU-Z respectively.
Final is the sensor tab for the GPU in question, it never leaves that state, nothing ever changes.


Thanks for taking a look, hopefully someone here can help me out. Sorry if I've left out any information needed but again I'd be more than happy to provide whatever screenshots just ask. Very frustrated with this issue, feel like I should have just bought 1... -.-

-T
 

T-Billy

Reputable
Feb 3, 2015
2
0
4,510
This has been done before. While not individually but I swapped the card slots a few weeks ago, this issue was happening before that. It seems to never utilize the bottom slot, while both are still recognized it only uses the card in slot 1.

Update on this. In CCC on the Graphics OverDrive menu no drop-down option is given to select a second card. (pic)