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12.11 Beta + 12.10 WHQL 7xxx Reference User Idle Clock Bug Fix

LtMatt

LtMatt

LtMatt

Caporegime
Joined
12 Jul 2007
Posts
43,698
Location
United Kingdom
When installing these new drivers idle clock speeds are not working properly. What used to be idle clocks of 300/150 is now 500/1375 or lower depending on your card resulting in higher temps and a louder fan usage.

A fix has been discovered that will allow you to use the new drivers and also still benefit from having lower clocks until AMD release a hotfix driver.

First install the drivers+caps.

Once that is done start up CCC, go to overdrive and apply 300 core and 150 memory clocks.

After this go to preset, add preset, name the preset idle, put the tooltip as 2dclocks, under location leave all items ticked, then assign a hotkey. I used F5. Click save.

After that go to preferences in the top right of CCC, then hotkeys. Click idle and go to edit. In with Hotkey press F5, Click ok.

Now whenever you quickly need to apply idle clocks, just press Alt+F5 twice.

I use this after ive finished playing games and running my overclocks using afterburner in order to get the cards to clock down properly. :)

This also corrects the voltage being too high. :)
 
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I've figured out what causes the (idle clock bug) problem. Its the memory.

Once windows loads start up ccc go to overdrive and set the memory clock down at 150.

Now the 2d clock is working, correct voltage core and memory clocks set.

Now in ccc put the memory clock at 1205, suddenly the card gets stuck in a different mode where the voltage increases to 0.9 the core gets bumped to 500 and the memory stays at 1375.

The card voltage and clocks will never clock down unless you manually set the memory down below 1205. The memory will stay clocked up though unless you put it back down to 150.
 
Thanks for this, wondered why I was idling at 50C.

Is there an official fix for this yet?

Also will the clocks jump back up automatically for 3d applications?
 
Looks like it was fixed in the 12.11 Beta6 release:

FEATURE HIGHLIGHTS OF THE AMD CATALYST 12.11 BETA6 DRIVER

AMD Catalyst 12.11 Beta6 resolves the issue with engine and memory clocks running too high when the GPU is idle. Clocks will now run at the proper level when the GPU is idle. This issue was only observed with specific displays and was observed in the AMD Catalyst 12.11Beta 4 and AMD Catalyst 12.10 drivers.
Click to expand...
 
Beta 8 out now.


FEATURE HIGHLIGHTS OF THE AMD CATALYST 12.11 BETA8 DRIVER

AMD Catalyst 12.11 Beta8 is now available, and includes the following updates:
(Please note that AMD Catalyst 12.11 Beta8 includes all of the fixes found in previous versions of AMD Catalyst 12.11 Beta)

Improves performance up to 5% in Max Payne 3
Includes single GPU performance updates for Far Cry 3
Improves CrossFire scaling for Planetside 2 (Crossfire scaling is still limited to ~30% at 2560x1600)
Resolves the Skyrim lighting issue (missing a lighting pass) for the AMD Radeon HD 7900 Series
Resolves the hang encountered playing Dishonored on the AMD Radeon HD 6000 and AMD Radeon HD 5000 Series
AMD Catalyst 12.11 Beta 8 for Linux includes significant performance improvements for Left for Dead 2

http://support.amd.com/us/kbarticles/Pages/AMDCatalyst1211betadriver.aspx
 
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