Cooling and Temps on a G4 Tower

Discussion in 'Mac Basics and Help' started by garycurtis, Sep 13, 2011.

  1. garycurtis macrumors 6502

    Joined:
    Sep 15, 2010
    Location:
    Los Angeles & Northern California
    #1
    My Mac G4 is running at 41° C, according to Temperature Monitor. That equates to 105°F. Is that within accepted limits?

    I have a supplemental fan in a PCI slot, the main fan in the power supply, and a CPU fan attached to the Sonnet Crescendo CPU. Makes a bit of noise, but not objectionable.
     
  2. Little Endian macrumors 6502a

    Joined:
    Apr 9, 2003
    Location:
    Honolulu
    #2
    Yes 105F is more than normal in fact that is pretty cool. I assume that 41/105 reading is from the drive bay? The CPU and GPU temps in my MBP can easily hit 150F under heavy load an this i a Core 2Duo Laptop!! My Quad Core G5 can easily hit near 200F for GPU/CPU temps, thats pretty close to boiling water but still no problems.
     
  3. Knoodles macrumors 6502

    Knoodles

    Joined:
    Feb 2, 2003
    Location:
    Gone to the Beach
    #3
    Like said. You are cool. Maybe you don't need that extra PCI fan? Although that fan might be for the ethernet card. IIRC my old G4 had a small fan behind the CPU for that. Here are my temps from a G5 Dual 2.0.

    HD Leopard 122°
    HD: Tiger, iLIFE 103°
    CPU A 139°
    CPU A Ambient 79°
    CPU B 130°
    CPU B Ambient 81°
    Backside 117°
    Drive Bay 86°
     
  4. garycurtis thread starter macrumors 6502

    Joined:
    Sep 15, 2010
    Location:
    Los Angeles & Northern California
    #4
    Temperature Monitor is a Made in Germany shareware utility. I don't know where or how it senses temperatures. I did go through my G-4 chassis and tape off open passages so all the air flows through the power supply inlet and fan.

    The auxiliary fan in a PCI slot sits next to the Graphics PCI card and exhausts to the outside. The CPU fan blows through a bunch of heat sink fins and I guess that airstream just gets picked up by the power supply and PCI fans and dumped externally.

    Thanks for the info.
     

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