Power Mac G5 :: X800 Fan Runs At Full Speed All The Time

Dec 30, 2007

I recently purchased an X800 and installed in my G5 1.8DP (OS X 10.4.9) with the intention of having something to drive my shiney new 30" Cinema display. All booted fine and, in glorious wide-o-vision, I spent the next 30 mins playing with all of this extra screen real-estate. At that point, I started to notice that things were not as quiet as I'd initially anticipated.

In fact, the amount of fan noise was so high that I'm not going to be able to use the new card as the machine is part of a project recording studio installation. Doh! So, a quick trawl of the ATI web site lead me to the ROM updates claiming to address fan speed control.

Update to the most recent version of the ROM and no change. Similarly, I've installed the most recent version of teh ATI control panel.

Odd as other people seem to be saying that they're not experiencing the same problem. And strangely, the GFX card fan runs at a low "normal" speed in Safe Boot mode whilst installing the ROM updates.

Information:
G5 1.8DP + Macbook Pro

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So then, my questions are these:

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My default OS is OS X, and it makes no difference if I change that to Windows.  I also did a PRAM reset, even though that has nothing to do with fans...

Info:
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