Question about iMac G4 thermal paste...

Discussion in 'PowerPC Macs' started by jbarley, Mar 9, 2017.

  1. jbarley macrumors 68030

    jbarley

    Joined:
    Jul 1, 2006
    Location:
    Vancouver Island
    #1
    Just how critical or necessary is redoing the thermal paste when upgrading the internal ram stick in a G4 iMac.
    The iFixit guide I've located makes no mention of thermal paste whatsoever.
     
  2. bunnspecial macrumors 603

    bunnspecial

    Joined:
    May 3, 2014
    Location:
    Kentucky
    #2
    I consider it essential to any incursion into the "dome."

    Unfortunately, it's a messy job and I almost always end up with some on the outside. Fortunately, a little bit of rubbing alcohol will clean it up without too much fuss.
     
  3. CooperBox macrumors 6502a

    CooperBox

    Joined:
    Nov 28, 2010
    Location:
    France - between Ricard & Absinthe
    #3
    I have a 20" that has been running for some time without re-applicaton of paste.
    I'd changed the HD and after thorough cleaning of both location faces, found myself with a dried-up tube of thermal paste. Perhaps foolhardy, but I decided to refit the base regardless. That same iMac has been running faultlessly even with extensive use of music videos, so I assume that it has a fairly high tolerance for high temperatures. Having said that, as this serves as a valid reminder of an additional task to be performed, it will be completed this weekend.
    For info, the early G4 iMacs have the one location for application of thermal paste. Later ones (believe it's the USB 2 models) have two separate locations that require thermal paste application. I'll post photos when I get a moment.
     
  4. fhall1 macrumors 68040

    fhall1

    Joined:
    Dec 18, 2007
    Location:
    (Central) NY State of mind
    #4
    You're tempting fate running without the paste....the biggest killer of electronics is heat. I'd hate to see a great machine like the iMac G4 killed needlessly when it could be saved for $7 worth of thermal paste.
     
  5. Eriamjh1138@DAN macrumors 6502

    Eriamjh1138@DAN

    Joined:
    Sep 16, 2007
    Location:
    BFE, MI
    #5
    Paste is cheap. Get some and use it. Don't take a chance.
     
  6. jbarley thread starter macrumors 68030

    jbarley

    Joined:
    Jul 1, 2006
    Location:
    Vancouver Island
    #6
    Ready and waiting...
    got some thermal paste and a new pram battery, just waiting for the ram modules to arrive so I get on with the upgrades.
     
  7. Nice macrumors regular

    Nice

    Joined:
    Mar 17, 2010
    #7
    I've done it also. It's not a big job, just do it to be sure.
     
  8. RhianB macrumors 6502

    RhianB

    Joined:
    Sep 3, 2016
    Location:
    Albuquerque, NM USA
    #8
    yeah, paste is cheap and easy. Ive done this to most every computer I own - most recently I redid the CPU & GPU paste on a trash picked compaq that I'll give to a coworker's son. Rubbing alcohol cleans up the old paste and any drips effortlessly.
     

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