Fan noise and weird CPU temperature

Discussion in 'Mac Pro' started by hal9000Mark2, Oct 4, 2009.

  1. hal9000Mark2 macrumors newbie

    Aug 30, 2009

    All of a sudden my MacPro 2008 has gone fan crazy! The CPU and Exhaust fans are running about 2,500rpm and from iSTAT NANO and XRG are saying that the CPU DIE 1 is running at 108degree C (!!!) while the other cores are running at 25 to 30. I opened the mac and checked the heat sinks but they weren't hot at all.

    Have a look at this image:

    * I reset the PRAM and SMC (several times) but nothing has worked.
    * Cleaned any dust using my Rocket Blower.
    * Removed some RAM
    * Reinstalled Lepoard
    * Loaded into windows xp
    * I done the Apple Hardware Test and it FAILED

    I don't have apple care (stupid stupid!) so if anyone knows what is wrong before I have to shell loads of money I will be very grateful :)

    Apple Hardware Test:

    Last Run: 04/10/4009 18:13
    Version: 3A142
    Test Suite: Extended Test
    Loop Count: 1
    Result: Failed
    Failure Code: 4SNS/1/40000000: TCBH-111.125

    Basically I've done everything I know possible...


  2. nanofrog macrumors G4

    May 6, 2008
    You could go ahead and reseat (requires re-pasting) the CPUs on the logic board.

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