4800 Series fan fix

[Sedako]

For those of us that purchased a new 4850 or 4870, the main issue right now is that the fan seems to run at around 20% speed with no way of changing it. There is now a simple software tweak fix available for those that don't wish to risk a BIOS flash. Found it on Guru3D:

Make a profile in the CCC after turning on Overdrive and make sure clock and memory settings are correct.

For Vista

Then go to the following location and open the following file for editing "C:\Users\Your Windows ID\AppData\Local\ATI\ACE\Your CCC Profile.XML. The xml file will have the same name as the Catalyst Profile you saved. right click and hit edit.

For XP

Then go to the following location and open the following file for editing "C:\Documents and Settings\Your Windows ID\Local Settings\Application Data\ATI\ACE\Your CCC Profile.XML. The xml file will have the same name as the Catalyst Profile you saved. right click and hit edit.


Now go down the page until you see the following lines in the XML file ...

<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="23" />

Change the "Property name="FanSpeedAlgorithm" value=" from "Automatic" to "Manual"

Then change "Property name="Want" value=" from "23" to your desired fan speed.
Save the file then reload the Profile you just edited in the CCC.

You will have to select the profile everytime you re-start the computer.

Seems to work very well for the time being.

 

[VirusType2]

however, if you increase your clock speeds - saved to the CCC profile, and you run a game but forgot to load the fan profile, then your at a great risk of damaging your card

IMO overclocking is bad idea unless you have upgraded cooling

 

[Sedako]

For the time being, yes. Once there is a permanent fix, the stock cooled 4800 should be able to overclock well without any ill effects.

 

[CyberPitz]

I've always wondered how they can release a card without realizing the fan is too slow...