So, I got my 390 yesterday, and I've had today to waste doing whatever. So I decided to venture out into the world of overclocking. I've only fiddled with MSI afterburner, so hopefully if I have done something stupid it's not damaged anything.
Temps according to GPU-Z (because MSI afterburner won't show me VRM temps?): GPU temps at load (in heaven) are no more than 75 degrees. VRM temps at load (in heaven) are no more than 71 degrees.
I'll grab some heaven benchmarks later if what I've done is good and I haven't missed anything.
Atm though, with the settings above, I've done one heaven benchmark:
what are the stock setting for the gpu before you messed about with overclocking also how did you oc it so did you up the core clock a little bit then run a heaven benchmark then up the core speed? or did you do it a diffferent way im asking this because i noticed your core voltage is at +100
Sorry, forgot to stick that in the OP. I basically stuck the core voltage to +100mV, the power limit to +50% and then bumped up the core clock until I got unpleasant artifacting and such. Then I started bumping up the memory clock. Took the advice of someone here. Stock: 1060 MHz / 6100 (so 1525?) MHz (OC Mode)
Do 100+mv and +50 power limit and just see what you can get. Why 81mv when you can do 100mv? JayzTwoCents says he was running what he thought would be the max OC that most people could obtain, and usually he maxes out the power limit and core voltage on AMD cards, so I'd assume his Core Voltage was +100mv. Plus that card has a great cooler, so I don't see why not run it at +100mv. Raise the core voltage and give it a shot, maybe you can get a stable 1175.
Most people recommend upping the clock until the card becomes unstable and then upping the voltage after. Also, I know a lot of people say to use the temperature as your primary limit... at least on nvidia. I've never overclocked, but I have been researching a ton lately because I'm about to take the plunge. JayzTwoCents just posted a video that reaffirmed a lot of what I had determined from my readings and video watching. I'm glad you posted this because I just bought a Sapphire 290 Vapor-X and it'll be a good reference!
Would just going from what I have now and trying to down the core voltage not have the same effect as bouncing between upping the core voltage and core clock? Bit less of a convoluted method, no?
Logically, I would agree with you. I've heard of both methods being used tho. This article explains a bit about why they feel you should go clock first, followed by voltage:
OpenGL bench on valley is fucked up like this on my HD7950 i suspect it's a driver or software issue my card has not had any problems in its 3 year life that ive had it.
