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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1187

post #11861 of 36908
Quote:
Originally Posted by darkstar585 View Post

yeah sure thing, do the following:-
1. Go to regedit ~ start > search programs and files and type "regedit".
2. In drop down menu: find file > type "enableulps".
3. For EVERY instance found change the "1" value to a "0".
4. Reboot PC
5. Check that it is disabled and reap the rewards.
Sometimes it may require a few attempts to get to stay disabled but you it should help with overclocking both cards.
With regards to conflicts between AB and CCC like was posted earlier you could always use trixx, personally i have always been a fan of AB and have not seen many problems with it but if it helps go for it as they both do the job equally as well. thumb.gif

I had the same problems and still have them, what does ULPS do ? and what effects would it have on my GPU's if i disable it ?
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post #11862 of 36908
Quote:
Originally Posted by Johnny Utah View Post

BF3 is the king of stability testing imo. I can run Crysis 2 and Furmark all day at 1250, but BF3 will crash. Had to drop it down to 1225. Really wish there was a benchmark program for BF3 like Crysis 2.

There is.... Running OCCT for 10 min at max shader complexity. You should be carefull with Powertune ("Board Power Limit" in Trixx) though in combination with OCCT. I would set it at 0% instead of the +20% everybody seems to be using. Setting it at +20% makes the benchmark with OCCT far less stable.
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post #11863 of 36908
Thread Starter 
Quote:
Originally Posted by Daffie82 View Post


There is.... Running OCCT for 10 min at max shader complexity. You should be carefull with Powertune ("Board Power Limit" in Trixx) though in combination with OCCT. I would set it at 0% instead of the +20% everybody seems to be using. Setting it at +20% makes the benchmark with OCCT far less stable.

That's because it throttles OCCT when you set it to 0. 

Even +20 throttles it but not as much. 

post #11864 of 36908
What should this feature be set to for my 7970 CF?
92
Thank you.
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post #11865 of 36908
Thread Starter 
Quote:
Originally Posted by BradleyW View Post

What should this feature be set to for my 7970 CF?
92
Thank you.

The one it was originally on. 

post #11866 of 36908
Quote:
Originally Posted by Evil Penguin View Post

The one it was originally on. 

That would be 1175 then. However, sapphire TriXX runs at 1112 and sometimes, 1175. Problem?
Also, should i have the power at +20 when running a 3d application such as a game or bench?
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post #11867 of 36908
Quote:
Originally Posted by DMT94 View Post

I had the same problems and still have them, what does ULPS do ? and what effects would it have on my GPU's if i disable it ?

ULPS is a power saving mode which disables the additional GPU's when they are not needed, if you are not overclocking your cards this feature can be useful. Unfortunately almost all overclocking software conflicts with ULPS as it tries to raise the core clocks and or voltage on the additional cards but cant due to them being in an ultra low power state which causes a system crash or lock up.

Disabling ULPS means that your crossfire is always enabled which allows for the core clocks and voltages to be adjusted across each card without the system crashing...this will mean that you will using slightly more power at idle but it otherwise will not harm your setup in any way.

Hope this makes sense?
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post #11868 of 36908
Quote:
Originally Posted by BradleyW View Post

What should this feature be set to for my 7970 CF?
92
Thank you.

That should automatically set itself. That number all depends on what the VID for your chip is...
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post #11869 of 36908
Should my cards be set tp +20 when overclocked/overvolted?
Cheers.

Edit: Rep given to those who have helped.
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post #11870 of 36908
Quote:
Originally Posted by darkstar585 View Post

ULPS is a power saving mode which disables the additional GPU's when they are not needed, if you are not overclocking your cards this feature can be useful. Unfortunately almost all overclocking software conflicts with ULPS as it tries to raise the core clocks and or voltage on the additional cards but cant due to them being in an ultra low power state which causes a system crash or lock up.
Disabling ULPS means that your crossfire is always enabled which allows for the core clocks and voltages to be adjusted across each card without the system crashing...this will mean that you will using slightly more power at idle but it otherwise will not harm your setup in any way.
Hope this makes sense?

Wait.... ULPS could be the culprit to VDDC resets when the card comes from idle into heavy load? If I am understanding the way that works properly.. or is this only for CF/SLI.
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