many thanks for the reply, thats just the answer I was looking for. Didnt know what ATI called their power saving feature.
All the 58xx series cards are vanilla atm so should have some headroom, especially with Asus SmartDoctor which is a utility which can boost the voltage to the card from 1.15 up to 1.35v
I have seen some reviews hit over 1ghz core with the volt mod.
Anyway, I Googled it and found a way to disable it.
Will post back to see if it works.
Just in case anyone else has this problem, this is how to disable powerplay (although not tested yet)
For anyone with ATI cards here is how to properly set your card up to not use powerplay which causes stuttering and low performance.
go to the directory,
C:\Documents and Settings\Administrator\Local Settings\Application Data\ATI\ACE
Keep that directory open.
start up catalyst control center
hit the Overdrive tab
hit the paddle lock image to enable the overdrive settings
hit the profiles tab at top of page
select profiles manager from drop down list
name a profile in blank box (Custom Power is my chosen name)
under "this profile includes" section at bottom of page select the dot for "the following settings". In the tree make sure only ATI Overdrive checkbox is selected.
hit the save button
hit the Activate and close button at bottom of page
now go to your open directory
C:\Documents and Settings\Administrator\Local Settings\Application Data\ATI\ACE
You should see 5 new files in there in total.
One file is the same as you named your custom profile, right click it and select edit (my file is called Custom Power.xml)
The file will open in notepad where you can now change settings to nullify powerplay
Here are my new settings for example, I increased the core speed and voltage and applied a slight overclock to the 3dmodes in gpu and memory. I also increased the fan % to 100% from 41%.
Make your changes, close and save changes to the file. Rt click the file choose properties and change the file to read only. You are done.
<Profile>
<Caste name="Graphics">
<Groups>
<Group name="Overdrive5">
<Feature name="CoreClockTarget_0">
<Property name="Want_0" value="77600" />
<Property name="Want_1" value="80000" />
<Property name="Want_2" value="80000" />
</Feature>
<Feature name="MemoryClockTarget_0">
<Property name="Want_0" value="112600" />
<Property name="Want_1" value="120000" />
<Property name="Want_2" value="120000" />
</Feature>
<Feature name="CoreVoltageTarget_0">
<Property name="Want_0" value="1300" />
<Property name="Want_1" value="1300" />
<Property name="Want_2" value="1300" />
</Feature>
<Feature name="MemoryVoltageTarget_0">
<Property name="Want_0" value="0" />
<Property name="Want_1" value="0" />
<Property name="Want_2" value="0" />
</Feature>
<Feature name="FanSpeedProtocol_0">
<Property name="FanSpeedProtocolProperty" value="Percent" />
</Feature>
<Feature name="FanSpeedAlgorithm_0">
<Property name="FanSpeedAlgorithm" value="Automatic" />
</Feature>
<Feature name="FanSpeedRPMTarget_0">
<Property name="Want" value="0" />
</Feature>
<Feature name="FanSpeedPercentTarget_0">
<Property name="Want" value="100" />
</Feature>
<Feature name="CoreClockTarget_1">
<Property name="Want_0" value="77600" />
<Property name="Want_1" value="80000" />
<Property name="Want_2" value="80000" />
</Feature>
<Feature name="MemoryClockTarget_1">
<Property name="Want_0" value="112600" />
<Property name="Want_1" value="120000" />
<Property name="Want_2" value="120000" />
</Feature>
<Feature name="CoreVoltageTarget_1">
<Property name="Want_0" value="1300" />
<Property name="Want_1" value="1300" />
<Property name="Want_2" value="1300" />
</Feature>
<Feature name="MemoryVoltageTarget_1">
<Property name="Want_0" value="0" />
<Property name="Want_1" value="0" />
<Property name="Want_2" value="0" />
</Feature>
<Feature name="FanSpeedProtocol_1">
<Property name="FanSpeedProtocolProperty" value="Percent" />
</Feature>
<Feature name="FanSpeedAlgorithm_1">
<Property name="FanSpeedAlgorithm" value="Automatic" />
</Feature>
<Feature name="FanSpeedRPMTarget_1">
<Property name="Want" value="0" />
</Feature>
<Feature name="FanSpeedPercentTarget_1">
<Property name="Want" value="100" />
</Feature>
</Group>
</Groups>
<Adapter name="PCI_VEN_1002&DEV_9501&SUBSYS_E620174B&REV_00_4&16020E22&0&0008A">
<Aspect name="Overdrive5" />
</Adapter>
</Caste>
</Profile>
If you restart your computer, just make sure to open catalyst and ensure that your profile is activated. Simple once done.