Windows 7: Help overclocking my 6970

well i guess i don't get what the point is. Your first post saying that you need clues on how far you could oc the gpu ( core, mem & voltage ) and how safe it would be.

pretty much, im a bit new to this so information is pertinent. im not entierly sure how we got to this point. ultimately what it comes down to, is what do i need to do to stay safe, is there a maximum clock i shoulnt pass as a general rule of thumb for this card? i understand temp, but wht are some good ways to keep that down in the first place? is there a certain "bad mixture of too much voltage to clock like there is in cpu overclocking? and how far do you suggest i start off with just for a little extra boost to try it out, and how to work from there. these are just some things i hope to gain from this

The main reason I suggested AB is that it's a proven OC app that works on both AMD and nvidia cards. Trixx hasn't earned it's rep yet.

I've been using it for quite a while with a few different cards and it's a solid tool. I haven't used Trixx as it's only for AMD cards.

They essentially do the same thing, so it's more of a personal preference. AB also has Kombuster included in the d/l as a separate installation (a burn in/furmark like stability app).

Ultimately all you need is a reliable app that adjusts your clock speeds and voltages. Try both and use whichever one you prefer.



As already mentioned, start by increasing the core and mem on stock volts, test with kombuster/furmark - look for artifacts (flickering, dots, app crash, system crash etc)

When you find the wall with stock volts, then you bump the voltage up a notch. Re-test / increase core and mem. Always keep an eye on temps. To play it 'safe' you can always set the fan to 100% during testing and adjust that later.


Start with a baby OC like 900/1400 and walk it up in increments. (920/1425, 940/1450, 950/1500 etc)


It's the excess voltage that is more dangerous than increasing core/mem speeds.

The worst that can happen when testing the limits on stock volts is that the PC will crash. There is no 'dangerous' clock speed per se. Simply keep an eye on the temps as you increase.

thank you for clarification, also what is kombuster?

i dont think i will be able to use this, it is not supporting my card, i have a sapphire 6970, but it is not changing the gpu when i edit fan speed, or really anything else.

It's a gpu stability test like furmark and bundled with MSI AB. it works with Nvidia or ATI Card.

There are ways around it, but if Trixx can adjust all those settings out of the box, I'd stick with Trixx in this case.

ya it does most of them, so just curious, i should inch my way up by how much for each, core, and ram

25mhz for each is a nice and precise amount.

thank you. i downloaded 3d mark and ran it, it Killed my graphics setup, notice the capital K! had to do some work in VCC and restart to get things back to normal. are their any programs like it i can use to benchmark my graphics, that are "free"?