How to UNDER-clock 560ti hawk

Lollipop

New member
So i need help with underclocking it, as it runs quite hot, and i will be getting a 2nd one next month

It came factory-oc'd@

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I have never ever done any GPu OC'ing so i would like to know how to tackle this
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So i need help with underclocking it, as it runs quite hot, and i will be getting a 2nd one next month

It came factory-oc'd@

l_unavngivsset.png


I have never ever done any GPu OC'ing so i would like to know how to tackle this
smile.gif

Easiest solution is to find the stock values and just lower them to whatever they may be

Which, google willing, is

Core Clock - 822mhz

Shader clock - 1640

Memory clock - is meant to be 4,000mhz but I know that Memory clock is usually a multiple of something and I'm still too much of a noob to know how to figure it out right now >.< But taking a stab in the dark I imagine you push it down to 2000 and it would be a multiple of two....for some reason, I dont know, Somebody explain it
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EDIT : Never mind, lord google once again provides. DDR means double data rate and that's why you multiply the clock by 2
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so yes, set it to 2000mhz

Go through the same process that OCing would to find the correct voltage; Leave it at 1075 and slowly reduce it incrementally, checking for stability each time, and when it starts losing stability bump it up again et voila! A stable voltage for the clock speeds.
 
There are programs that other members of the forums will have more experience in, and I unfortunately can't speak from experience, but Google provides once again and informs me that ATITool is a pretty good stress test or any benchmarking tool.

You will notice instability through Artifacts appearing on screen (ATItool has a neat feature that highlights and scans for them) or simple crashes.

That being said these tools are always just indicators and are not always 100% accurate, Real world gaming tests will also give you a decent indicator of whether your GPU is stable. But, as far as I can tell, it comes down to trial and error.
 
Hi,

Does it really run that hot then? You might want to try setting up a custom fan profile for the default clock first as I find the stock fan profile on NV cards is quite slow.

If the temps really are that high or the noise of the fan on a more agressive fan profile is too much then you could down-clock it.

I'd suggest something like 800mhz core @ 1000mv with just 2000 on the memory might be a good starting point. The reason I say this is because 1000mv is what my 2nd 570 needs to be stable at 800mhz.

For testing I find 3D Mark Vantage to be a good starting test, followed by 3D Mark '11 which is slightly more stressful and, finally, Heaven 2.5 is pretty good. However I still find that Crysis 2 with DX11 and Texture packs pushes things harder than any of the above during a gaming session.

So, build your way up getting progressively more stressful on each test - or just fire up Crysis 2 right away lol.

If you prove to be STABLE, then you can try lowering the GPU vCore a notch - note a "notch" is around 7 or 8mv, if you try to adjust less than this you'll likely see Afterburner jump to the prior voltage...it's odd like that, so keep an eye on it.

If you prove to be UNSTABLE, then you can either bump the GPU vCore up a notch OR chose to lower the core clock even more.

Either way, if you hit a stable point you can always lower clocks (and vCore) some more to get things running even cooler.

If you get a 2nd card it's default Vcore (for it's factory OC) may well be different - my two GTX 570's are about 35mv different at stock settings to start with. You can try (like I did) adding, or in your case removing, the same amount of GPU vCore to under clock the 2nd card the same. As you should already know the stable settings for your first card, any instability should be due to the 2nd card.

Best of luck and keep us posted how you get on
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Scoob.
 
79c at full load is decent bro those puppies have a higher top end compared to cpu's lol quite hot for a GPU imho is 95-100 under full load

But i heard stuff like the top card gets 10c hotter etc so i wanted to lower the temps a bit
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With my 560ti hawk my core temp seems to stay at a sensible temp under 100% load but i have seen the memory and the VRM temps go into the 100c - 105c mark
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