MacBook, New Logic board no fan

Discussion in 'Mac Basics and Help' started by jw 1, Aug 1, 2010.

  1. jw 1 macrumors member

    Joined:
    May 17, 2008
    #1
    Hello, I just replaced my 2.2Ghz MacBook logic board with a 2.4Ghz 661-4709. I noticed that the fan is not coming on. Is this a compatibility issue? I tried a used 2.4Ghz board and the fan worked fine however the computer would not boot. I returned the board and purchased a new board and now the fan will not come on. The computer boots right up and everything (that I have tested) works fine. Everything except the fan. All the connections appear to be the same??? Any suggestions?
     
  2. jw 1 thread starter macrumors member

    Joined:
    May 17, 2008
    #2
    After closer inspection the fan appears to be working but it is very slow. Anyone know if his is normal? I had the fan hooked to another board ant it appeared to operate at a faster speed.
    Thanks.
     
  3. jw 1 thread starter macrumors member

    Joined:
    May 17, 2008
    #3
    What should the fan speed be when the MacBook first starts?
     
  4. HikariYuki macrumors member

    Joined:
    Jun 29, 2009
    #4
    Well I have a mid 2009 macbook pro and the default fan speed is 2000 rpm.
     
  5. Patrick J macrumors 65816

    Patrick J

    Joined:
    Mar 12, 2009
    Location:
    Oporto, Portugal
    #5
    Fan is max 6000 min 2000.
    Install a stat utility like iStat that will allow you to monitor fan speed. IT might be on but very quiet.
     
  6. jw 1 thread starter macrumors member

    Joined:
    May 17, 2008
    #6
    OK. I'll check that out. I purchased a new fan just in case.
    Thanks for the information.
     

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