giraffe2010

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Dec 2, 2008
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Hey guys, I've recently purchased a second HD4850 to do crossfire but I have a problem with fan speed. One card runs fine but the other one won't go over 23 percent speed. I have found the fix for this. You have to edit the xml file that has the fan speed data for the profile in catalyst control center.

Here is the link: http://techreport.com/forums/viewtopic.php?f=3&t=60232&st=0&sk=t&sd=a


But the problem is, when I go to that folder to edit the xml....the file isn't there. I have hidden folders showing and I have told windows not to hide system files and it still doesn't show. And I created and extra profile in CCC and it still didn't show up. I even called ATI tech support and they didn't know either. I would really like to get that fan going at 100 percent because my card is hitting 100 C under load. Any help is appreciated.
 

orangegator

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Mar 30, 2007
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With Catalyst 9.6, you should be able to manually set the fan to 100% via the slider without editing the xml, I believe. There should be a slider in the ATI Overdrive section.
 

giraffe2010

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Yes I know that....that's what I'm doing. It's a glitch in the software that won't let the fan go over 23 percent....you can tell a major difference in the two fans when they are both at 100. If you drag the slider down to 20 percent the fan doesn't spin at all.
 

giraffe2010

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Dec 2, 2008
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Driver really isn't my issue...I don't know why CCC isn't storing profile data where it should. But I will give it a shot.