jaffers Posted November 6, 2016 Share Posted November 6, 2016 I cannot change the voltage of the second GPU in crossfire. Wondering if I can do a BIOS flash or if there is a special tool to be able to do this? Or if my only option is volt modding the card (which I intend to do anyway at some point in the future) Running 2x HD7950's on a giga Z97X-SF http://i.imgur.com/Cw9oVyl.png Quote Link to comment Share on other sites More sharing options...
buildzoid Posted November 6, 2016 Share Posted November 6, 2016 Have you tried Trixx? It might support OV on both cards. I never had issues with it for more modern CF setups. Quote Link to comment Share on other sites More sharing options...
jaffers Posted November 6, 2016 Author Share Posted November 6, 2016 Thanks buildzoid, I fixed the issue, it was ULPS. It didn't matter if I had it on or off when OCing one card, but it needs it disabled when OCing 2 cards. Trixx v5.2.1 doesn't work with the HD 7950 (it crashed like crazy on my system) but v5.0.0 works fine. Thankfully Trixx is the only one that told me I needed to disable ULPS, works great! Voltage control is now unlocked up until 1300 Although the second card doesn't go very far, hits a wall at 1025MHz on the core whereas the other goes up to 1260MHz. I think I can get some more out of the worse card on its own but I haven't tried it in a long time in a single config Quote Link to comment Share on other sites More sharing options...
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