Crossfire Fan Problems?

[Caoder]

When i enable Overdrive in the CCC, i can control the fan of one video card, but the second video card's fan spins at a constant 50~% judging by noise, is there a way for me to control both fans or should i just ditch CCC altogether.

Note: I'm using 2 sapphire 4870 512 mb, reference boards with stock full cover plate and fan paired with liquid cooling for the die.

[iTravis]

I used to have HD4870 in CrossFire and there was a guide that show how to manually adjust the fan speed for both GPUs. I thought the latest Cat should fix it but anyway, you might wanna give it a try:

1. Turn ON Overdrive in the CCC and leave the clocks speeds at default.
2. Make a profile in the CCC (this will be your fan speed profile, you can have more than one)
3. Find and EDIT (via rightclick) the "C:\Users\USERNAME\AppData\Local\ATI\ACE\PROFILENA ME.XML" File

Find:
<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="XX" />

4. Change:
Automatic to Manual
The FanSpeedPercentTarget value (shown as XX) to the percentage you wish to use.

"FanSpeedAlgorithm_0"....... is the 1st video card.
"FanSpeedAlgorithm_1"....... is the 2nd video card.

EXAMPLE:
<Feature name="FanSpeedAlgorithm_0">
<Property name="FanSpeedAlgorithm" value="Manual" />
</Feature>
<Feature name="FanSpeedRPMTarget_0">
<Property name="Want" value="0" />
</Feature>
<Feature name="FanSpeedPercentTarget_0">
<Property name="Want" value="65" />

and then scroll down and the _1:
<Feature name="FanSpeedAlgorithm_1">
<Property name="FanSpeedAlgorithm" value="Manual" />
</Feature>
<Feature name="FanSpeedRPMTarget_1">
<Property name="Want" value="0" />
</Feature>
<Feature name="FanSpeedPercentTarget_1">
<Property name="Want" value="65" />

5. Save the XML file.
6. Activate your profile(s) in CCC.

[Caoder]

Thanks it worked, nice n cool and quite now