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weird gtx 760 sli issues

post #1 of 2
Thread Starter 
first things first, rig is in sig.

i have sli evga sc acx 760's. they are oc'd to +70 on the core and +500 on the mem. power limit is at 100%.
the clocks are stable (ie no driver crashes and no crazy temps while benching), however the issue im having is that GPU1 is down clocking under load when it shouldn't be.

high performance is enabled under pc power options.

also MSI afterburner is reporting that even though GPU1 is dialed in at 1254mhz (which is what the core oc is set to), GPU2 comes dialed in at 1280mhz. I don't think I've seen anything like this before shouldn't it be the other way around if anything? this only occurs under load.

I'm using the current beta drivers as I experienced this issue with the current WHQL drivers. When I switched (to the new beta drivers) I got one good pass through on unigine valley extreme hd and on the second run through GPU1 started to down clock to 1225mhz and lower, while GPU2 stayed at 1280mhz.

I'm not really sure what the problem is, I suppose I could roll all the way back to the previous drivers I had before the current WHQL ones since I'm pretty positive I didn't have this issue with them. however the only reason i rolled to the new beta drivers is because I heard they were a must for BF4, which I'm in the process of slowly downloading.

Not really sure where to go from here which is why I decided to post this.

Edited by discoprince - 10/4/13 at 10:45am
post #2 of 2
have you looked at your ASIC quality readings on both boards with GPUZ?

for example mine are 86.4% & 80.8%, but I have not been paying close attention to speed.

Perhaps one of yours is substantially lower than the other and it hits its thermal limit faster?
Edited by bbond007 - 10/6/13 at 12:46pm
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