Originally Posted by rv8000
Was messing around with trixx and 3dmark today, stability wise oc's seem better. I can do 1215 with +100mv while in ab I could barely keep 1180 stable with +100mv. Also noticed something not so great, I was monitoring my 12v line while watching vrm temps and noticed that 12v line is dropping a lot more than i thought. Normally runs at 11.88v, and is dropping all the way down to 11.50v with the 290 heavily oc'd with cpu @ stock. Is it bad my psu's 12v line is dropping so much, also 11.50 is close to potential damaging levels right?
This has NOTHING to do with your power supply. On my Seasonic 1000 platinum PSU, my card also starts at 11.75v, and drops to 11.63v and at highest load, 11.50v. While HWinfo, detects, at full load in prime 95, 11.926v. So the card has its own voltage sensor/regulators that droops the voltage or something, not related to your PSU.