Ok well sucks, I finally pulled the trigger and picked up a 7970 this last week... however this V3.1 xfx black edition version I have - Bios date 5-21-12 is for sure voltage locked. Darn those guys... Tried everything, and every version of OC software. Close as I can get is to read the voltage at 1.175 however it never changes so I do not think that is accurate. I tried tonight to flash it to an earlier bios version that is listed on here dated 2-6-12 but it locked the card up... took a little to recover it to stock bios but nothing crazy and all back to normal. It is a total PCB revision which looks like their cheaper version with dual DVI - not the single DVI it was pictured as having. Very irritated and of course wife jumped on the mail in rebate so I cannot return it without a ridiculous 25% re-stocking fee from tiger. And... she sent the rebate to corsair, and corsairs to xfx lol so yeah. What fun. Any thoughts or advice on this? Bios 015.016.000.001.000000 She overclocks OK... 1100/1700. Was surprised that performance kept increasing until 1700... no error correction drop so that was decent. Stuck pretty hard at 1100 though. Much past that and she artifacts bad.