Originally Posted by tmaz42o;15315097
Stock clocks and stock voltages, my card was unstable, so I raised the Core Voltage to 1025mV and that seems stable with stock clocks.
That sounds defective to me. What did you do to determine it was unstable?
Originally Posted by hahysera;15315412
Keep bumping the core clock by 10 and running 3DMARK or OCCT or furmark or heaven or some high graphics game.
EDIT2: Dont be too scared though, GPUs arent like CPUs where u can harm them extremely badly. They can take a bit more abuse I would say. Also, almost everyone with 570's runs 1100 volts, so its not a big deal if U bump it up there. Also not a big deal if it crashes. It will just give u a message saying ur driver stopped responding and will reset ur clocks. Ur at like 55*C, you have nothing to worry about with temps so bump that core clock!
AFAIK, with Fermi, OCCT and Furmark are on Nvidia's "Blacklist". When you run them, OCP kicks in right away and down clocks the card in order to stay within its power limit. Source
But Heaven(maxed) and 3DMark11(extreme preset) are good for stress testing. I prefer taking a guess on what clocks are stable at a certain voltage based on past knowledge, then running letting Heaven run through the cut scenes on max overnight(8-12h). I also move in 10MHz increments until i know im stable between x and x(eg 870-880). Then i bump it up 5MHz. If its stable, then i start to OC the memory up to my personal limit of 2100 at 1.1V, or 2200 at 1.05V.
Although GPUs aren't like CPUs, we are talking about a (reference?) GTX 570. They are known to have less VRMs than they should, and many people have had them die because of this. Just make sure you keep the memory below 2200MHz, and the voltage below 1.100V on air. Then you should be fairly safe, assuming the temps are in check.
Originally Posted by AMDrocks;15315837
I would leave it at stock, It is powerful as it is.
Not if you're like me and you want to run BF3 on ultra with good enough frame rates.
Originally Posted by tmaz42o;15315822
Is this normal? In the screenshot, the red circles for MSI Afterburner and GPU-Z match, but not with EVGA OC Scanner.
OC scanner is just showing your cards current clocks. Since its idle, its running in its P12 power state. That is why you see such low clocks.
For reference, here is how my 570 OCs(still in testing stage):
1.050V 870-875core 2000+mem
1.088V 900+core 1900+memEdited by nawon72 - 10/15/11 at 12:33am