Early 08 Power Supply Temps...

Discussion in 'Mac Pro' started by amik, Apr 11, 2008.

  1. amik macrumors regular

    Dec 11, 2007
    I've noticed that some/most of the iStat captures posted in ram temperature threads seem to be around 90F. Mine are more like 130-140F at idle, even when really cranking away at on several dvd encodes/rips and running F@H the temperature doesn't rise much, maybe 145F tops.

    I've pulled out the optical bay and verified that the power supply fan is running. The power supply enclosure is not any warmer than the rest of the case, and the air coming out of the back of the power supply enclosure is a little warm (fan doing it's job). SMC fan control does not impact the PS fan speed, so even when I bump the other speeds up, the PS stays warm (everything else gets very cool).

    Anyone care to share their power supply temps? Please also include your processor speed, video card, ram, and hard drive configuration.


    My configuration:
    2.8ghz 8-core
    10gb ram (4x2 + 2x1)
    3*750gb samsung f1
    1*320gb seagate barracuda
  2. Infrared macrumors 68000


    Mar 28, 2007
    Machine B was a replacement for Machine A:


    Temperatures are in Celsius.

    63C = 145.4F
    72C = 161.6F

    I can't say definitively Machine A was broken.
  3. bigbird macrumors 6502

    Aug 17, 2007
    MY PS temps are 38C and 37C.

    My config is a dual 2.8, 8800GT, 12GB RAM, and 2X 500GB HD's and 2X 360GB HD's.
  4. amik thread starter macrumors regular

    Dec 11, 2007
    Thanks, both of you for sharing your temps.

    That's how I feel at the moment. It doesn't feel broken. Usability has not suffered, the temp just seems out of line on both power supply sensors. Guess I'll just keep an eye on it and give apple a call if it causes me a real problem. I'm reluctant to trade in a machine that is otherwise flawless.
  5. supercooled macrumors 6502a

    Sep 6, 2007
    I didn't realize the Mac Pro has two power supply. I'm averaging low 40s celcius.
  6. Cryptic1911 macrumors member

    Mar 11, 2008
    My PS temps are 64 & 57 deg Celcius.. ambient temp is 22deg

    I thought that was a bit odd too.
  7. tom. macrumors 6502


    Nov 9, 2007
    San Francisco, CA
    Early 2K8 MP, 2 x 2.8 Quad, 8800GT, 1.5TB, 2GB

    PSU's at ~95F or ~35C

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