Powermac G5 CPU fans running different speeds

Discussion in 'PowerPC Macs' started by scottlinux, Jul 3, 2007.

  1. scottlinux
    Expand Collapse
    macrumors 6502a

    scottlinux

    Joined:
    Sep 21, 2005
    #1
    Okay need some help. CPU cooling fans are running at strange different speeds. Powermac G5 early 2005, dual G5 (not dual core).


    This is at idle:

    CPU A 60 degree Intake 300rpm Exhaust 300rpm

    CPU B 63 degrees Intake 1125rpm Exhaust 1100rpm


    ! I have not noticed this before. They usually remain identical. Tried resetting PRAM, NVRAM, and did a SMU reset. No change. Any ideas? Thanks,
     
  2. FF_productions
    Expand Collapse
    macrumors 68030

    FF_productions

    Joined:
    Apr 16, 2005
    Location:
    Mt. Prospect, Illinois
    #2
    My Dual G5 (April 2005) was loud as hell (Dual 2.0 ghz)

    Which G5 do you have?

    If it is the 2.5, you may have a problem with the liquid cooling.
     
  3. scottlinux
    Expand Collapse
    thread starter macrumors 6502a

    scottlinux

    Joined:
    Sep 21, 2005
    #3
    Dual 2Ghz, not liquid cooled. Maybe I'm getting over paranoid, but I thought I had not ever seen the cpus fans so different. And at all times! Could just be the summer heat? Anyone?

    EDIT: And I have noticed that CPU A is steady at 300rpm in/out without change, no matter the CPU load.
     
  4. product26
    Expand Collapse
    macrumors 6502a

    product26

    Joined:
    May 30, 2005
    #4
    make sure everything is clean and dust free...

    also, one CPU is above the other.. heat rises. one processor could contribute to the heat of the other.
     
  5. FF_productions
    Expand Collapse
    macrumors 68030

    FF_productions

    Joined:
    Apr 16, 2005
    Location:
    Mt. Prospect, Illinois
    #5
    Summer heat definetely gets to the machine.

    I guess you don't need to worry about it for now.
     

Share This Page