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HD7950 crossfire/monitoring issues

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Joined
12 Dec 2014
Posts
26
ok, so i got new motherboard, CPU and ram on Friday and all was working well come Saturday once i had installed windows updates, driver updates all the fun stuff.

I have two HIS HD 7950 IceQ Boost cards running in xfire, both cards were working fine on my old board. I have been monitoring the cards using MSI afterburner with the settings mentioned in this thread by AMDMatt. Both GPUs were reporting that they were under load when gaming and benchmarking.

http://forums.overclockers.co.uk/showthread.php?t=18544020

Now, Sunday morning i had to remove the cards to move some things in my case. Before this point and on my old board i was having issues where my monitor would black out for a second then come back so i decided that when i put the cards back in that i would swap them to see if that helps, i also changed the connector that was being used on the GPU to the monitor.

Since making the changes, GPU1 does not display any load when gaming, when idling its clocked lower than GPU2, and occasionally when gaming it will spike to 100% load then right back to 0%.

When idling GPU1 is at 300mhz and GPU2 is at 500mhz, this is also the same in CCC. When gaming they both go up to 1250mhz (i think, not at home but they go to there max) but as i said before GPU1 does not report any load while GPU2 reports 80% to 100% load in MSI afterburner.

Since having the issues i have tried swapping the cards back, reinstalling the drivers, changing the crossfire connector, re-seating both cards on the board and changing the power connectors. I have also ran both cards on there own and they both work identically in the first PCI lane. Also when benchmarking, the score is clearly higher with both GPUs in crossfire than it is when using a single card so GPU1 is doing something i believe.

Running out of ideas, has anyone had this issue before?

PC Specs:
i7 5820k @ 3.3GHz
MSI X99S Gaming 9 ACK
16GB DDR4 Corsair Vengeance
2 X HIS HD 7950 IceQ Boost
Seasonic X-Series 1050w PSU
Windows 7 64-bit

Thanks

Edit: Just re read this, to make it clear, I am Having issues monitoring my cards i think in MSI afterburner, what other methods can i use to test to make sure my cards are ok or what can i try to fix the problem?

I will try and get some screenshots up when i get home.
 
Last edited:
Yeah check msi afterburner and reset the cards to default.. Because yiu made changes to the system after msi afterburner was installed it will have your GPUs not detected correctly, resulting in putting the clock speeds lower.
 
Do you mean reset in msi afterburner or am i missing something in CCC?

I have reset in msi afterburner which did not make a difference. I also decided to fully reinstall afterburner this morning and that has not helped. I will get the screenshots up when i get back from work but GPU1 now seems to be spiking while idling.
 
Thanks for the reply

So, i removed msi afterburner, then used DDU and got rid of my display drivers. Restarted the system then installed the GPU drivers. At this point in CCC GPU1 was ideling at 500MHz and GPU2 was at 0MHz which i guess is because of ulps.

So then i installed msi afterburner and set it up as i have before and still the same issue. Here is msi afterburner while i ran a benchmark with 3d mark.

GPU1_zpsbrgifekg.png


Still seems strange, still dont have a clue what going on. Also downloaded GPUz and its seeing both cards.

GPU1

gpuz1_zpsaiqlp1q9.png


GPU2

gpuz2_zpsmkrt52qf.png


I have been trying with both the stable and beta gpu drivers
 
i would start from scratch

express uninstall ati software
use driver sweeper to remove old entries
reboot
install ati cats
reboot
don't use ccc
install msi afterburner
use msi afterburner
 
I haven't had the opportunity to try crossfire yet but I have noticed an option in my bioses that seems to allow communication between cards, still I haven't upgraded in years so this may be a thing of the past now, was just a thought. Good luck with it
 
Happy to try anything at the moment, starting to annoy me now. Second card isn't even getting hot (the heat sink is still cool after testing) which to me seems like msi is reporting my top card as gpu2?

Wont be able to try anything else until the weekend but have a few ideas and will follow suggestions here, hopefully it is nothing to do with my motherboard having just got it.
 
Could this be an issue? I have never looked at this before so not sure what the values are meant to be?

This is from the device manager in the windows control panel.

GPU1 reporting PCIE slot 6? and GPU2 reporting slot 4. As far as i am aware it should be GPU1 slot 1 and GPU2 slot 4.

GPU1 (top one from device manager)

GPU1DM_zps32gqgnp9.png


GPU2

GPU2DM_zpsfew2rxo8.png
 
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