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So i'm trying to overclock my Asus GTX 560 Ti. The first overclock i got was 950 Mhz (stock is 830 mhz) without even changing the voltage. Now i wanna try and push it to 1Ghz. I've done that, and everything runs just fine, except Furmark, which gives me a driver error after 6-7 minutes.

Any advice?

Here are my settings:

alt text

asked Feb 15 '12 at 20:32

Jacobmsdk's gravatar image


Does the card get hot? I will say that over clocking can give an unsteady performance software and hardware wise.

(Feb 15 '12 at 20:41) josephLtech josephLtech's gravatar image

It gets somewhat hot. 80 degrees celcius running Furmark, but only like 65-70 when running games. It shouldn't be the problem, as in my old case the graphics card hit 90 degrees without crashing.

(Feb 15 '12 at 20:49) Jacobmsdk Jacobmsdk's gravatar image

With the built in limit, you can push the voltage slider to the max without damaging the videocard. The bios has a software limit that prevents you from using higher voltages than the company wants you to use, and a common mod for these cards, is modding the bios to allow for a higher voltage.

eg on my gtx 460 (I don't mod the bios until I have had the card for a few months (since modding can void your warranty if the card fails in a way where you cant restore the stock bios)

Also when testing your card, you need to use a program that can run the GPU at 100% continuously and see if it artifacts or crashes after 30 minutes.

With a 100% nonstop GPU load, the GPU will get hotter than normal so hitting 90-93C is acceptable, if you hit 95C then either find better cooling or lower the voltages and the overclock. The GPU's can generally handle up to 105C before overheating but it is not good to run them near their upper limit unless your card has a life time warranty and you are okay with paying for shipping to RMA it eventually.

PS also look into overclocking the RAM, if offers a tiny bit of improvement

alt text

I plan to eventually increase the voltage further and overclock to 930MHz

answered Feb 15 '12 at 22:40

Razor512's gravatar image


edited Feb 15 '12 at 22:41

Yeah, i knew about the 100% stress testing, but i didn't know about the volt limit, so i'll give it a try. Thanks.

(Feb 16 '12 at 04:44) Jacobmsdk Jacobmsdk's gravatar image

I also wanted to add that just because you can push it all the way without issue, doesn't mean you should, it is still best to follow standard overclocking practice where you overclock and if it becomes a little unstable, then you bump the voltage a little. (the more voltage you pump in, th emore heat you get and the worst your price to performance ratio becomes.

And depending on the GPU, you may hit an overclock where additional voltage will not increase stability.

In my case, going from 1V to 1.087V allows me to overclock from (the cards default of 730MHz (true stock speed via nvidia's spec= 675MHz), to a final overclock of 860MHz.

Some other users have been able to hit 900MHz at 1.087V, and 950-1GHz at around 1.125V 9with a bios mod to up the limit.

(Feb 16 '12 at 05:11) Razor512 Razor512's gravatar image
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Asked: Feb 15 '12 at 20:32

Seen: 1,630 times

Last updated: Feb 16 '12 at 05:11