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cpu board

  1. AphoticD

    MP 1,1-5,1 Mac Pro 4,1 (2009) - No Power On, Replaced Multiple Parts, Need Guidance

    Hi all, this is a long one, so thank you in advance to anyone who takes the time to read and may be interested in helping me solve this... I am troubleshooting a stubborn Mac Pro 4,1 (Early 2009 base-model Quad Core 2.66GHz single CPU) that refuses to power on. I bought it as a "For Parts"...
    • AphoticD
    • Thread
    • backplane cpu board macpro 2009 macpro 4.1 no power psu
    • Replies: 4
    • Forum: Mac Pro
  2. K.J.

    MP 1,1-5,1 Apple MacPro4.1 with 2xCPUs board is UNABLE to use RAMslots 5–8 PROBLEM (?)

    Hi there to ALL and @tsialex , I would like to ask you for some specific unrecovered MacPro 4.1/upged to 5.1 PROBLEM I have 2 CPUs board and Iam not able to use any of 5–8 RAM slots - With tem MAC not boot or unattended shutdowns ... I realy does "everything" from 12 different 100% checked sets...
    • K.J.
    • Thread
    • cmp 4.1 cmp 5.1 cpu board mp 4.1 mp 4.1 tray mp 5.1 ram board ram problem ram problems
    • Replies: 15
    • Forum: Mac Pro
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