Fan Problem: 2 FAN/4/8: Fan for BACKSIDE

Hi,
I ran AHT Test and found following error:
*Error Code*Error Code*
2 FAN/4/8: Fan for BACKSIDE
I don't know the exact meaning and how can i solve this problem.
I appreciate if you guys help me out.
Thanks
Mac G5 Mac OS X (10.4.9)
Mac G5 Mac OS X (10.4.9)

Hi. It may be worth checking which version of the AHT you are using, in view of this
http://docs.info.apple.com/article.html?artnum=86492
It may be a bit tricky to carry out a visual inspection of the Main Logic Board Backside Fan - as it's the one at 90deg to all the others, in a grey plastic housing behind the hard drives.
You could try running Hardware Monitor
http://www.bresink.com/osx/HardwareMonitor.html
On this 'Original' DP 2 G5, the Main Logic Board Backside temp is 43.5C/110.3F, and the Main Logic Board Backside Fan is at 20%. However, note that on the "Original" G5s(before June 2004), OS X, and therefore Hardware Monitor, only reports the fan speed instructions being sent to the fans, not the actual fan speed.
If you have AHT 2.1 (the version should be on the system disc DVD that you ran it from) and you still have AppleCare, you can ask them for an updated version. Even if you don't still have AppleCare, it would be worth pointing out to them the problems this is causing you - and the distress...
If you have a more recent AHT - then it looks like a case for Applecare anyway - or the repair shop. Good Luck.

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Fan Problem: 2 FAN/4/8: Fan for BACKSIDE

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