Upgraded 1,1 Restart Issues

Discussion in 'Mac Pro' started by macpro2000, Apr 9, 2012.

  1. macpro2000 macrumors 6502a

    Apr 20, 2005
    Hey, I felt I just need to throw this out there and see if anyone else ever experienced this...I upgraded my 1,1 with 5355 chips so now I have a 2.66 Octo machine. Speed is great. The only issue I've had since upgrading is that when I restart my machine, it will "whirr" the fans, then 2 seconds later it will "whirr" then again, it is an endless loop. The fix is to hold down the power button until the machine shuts off, and if I press the power to boot up cold, it does the "whirr" and starts up just fine. Kind of a pain in the butt though. Anyone else ever had this happen?? Any advice would be great.
  2. Lesser Evets macrumors 68040

    Lesser Evets

    Jan 7, 2006
    Have you tried smcFanControl?

    It might be able to stabilize the fan speed if you have it in, set to your desired levels, and starting up with the machine. If that doesn't help, I have no idea. Just switched my chips and haven't had troubles.

    Or, could it be that you need the firmware update for the larger cores? You can find the firmware on Apple's support areas; it's needed if you go from 4 to 8 cores on a 1,1.
  3. FrancoisC macrumors 6502a


    Jan 27, 2009
    Montreal, Qc
  4. nambuccaheadsau macrumors 65816


    Oct 19, 2007
    Nambucca Heads Australia
  5. macpro2000 thread starter macrumors 6502a

    Apr 20, 2005
    Wirelessly posted

    I appreciate the responses, however I had already updated it to 2,1 and still same restart cycling non booting thing going on. May just have to be something I have to live with until the new Mac pros come out. ( or are the last ones out??? Hope not! )
  6. mrgossett macrumors 6502

    Mar 18, 2008
    I've upgraded my 1,1 to dual 5365s, and have done the 2,1 firmware update from netkas.org. I never hear the fans at all, and it seems to run cooler than before, so there may be some other issue that you have that's causing the fan problem.
  7. Neodym macrumors 68000


    Jul 5, 2002
    Assuming everything else is in working condition (e.g. the temp sensor cables seated properly after the CPU swap), did you reset the SMC and zap the PRAM after the upgrade?
  8. macpro2000, Apr 26, 2012
    Last edited: Apr 27, 2012

    macpro2000 thread starter macrumors 6502a

    Apr 20, 2005
    Wirelessly posted

    Problem solved. I swapped out some of the ram and everything is peachy now.

    EDIT: Spoke too soon.

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