Hi Guys
So i had a GTX 970 sc acx 1.0 which i had overclocked fine. Got another 970 sc but acx 2.0 which i installed in sli with the evga sli bridge. no dramas and it was working sweet in games and benchmarks. tried to overclock it and in valley it would overclock no dramas - tested up to 50 on the core and 300 on the memory running the benchmark for 2 hours at ultra 4xaa settings (this is with msi afterburner)
ran 3d mark at stock which was fine. ran just firestrike at the overclocked speeds and ran fine
so then tried full 3dmark at the overclock speeds and bsod maybe halfway/3 qtrs through
thought maybe it was the incompatibility with the acx 1.0 and 2.0 so bought another acx 2.0
again tested overclocks (this time just mild 30mhz on the core and 100 on the memory) in valley just fine and firestrike is fine but left 3dmark to run and came back to another bsod. both are the same part number and bios so any ideas? has anyone else experienced this before?
i googled and best explanation someone had was voltage drop for first card in sli but the thread was from 2014 so not sure if it applies today with newer drivers?
just to rule out other components, ive memtest86+ passed and occt small and large passed and psu is corsair 750w gold (only have 6 sata devices) Its also winter and my cpu is cooled by h100i so not much hot air inside the case (card temps would hit 74-76ish on 50% custom fan speed)
aisc is 70 and 69