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  • 15. Re: Power Mac  G5 (Late 2005) won't turn on.
    Jeff Robertson Level 1 Level 1 (5 points)

    If bent processor pins were involved, I don't think I could have gone as long as I did before the trouble started. I would have had the problem I very first time I tried to turn it on.

     

    The value I place on the machine wouldn't be worth a trip to have it professionally diagnosed, sadly.

    I'm sure getting someone to even being in the same room with the machine would be cost prohibitive.

     

    Since I have already removed the processor once and had planned to again to replace a possible bad power supply, perhaps I will take a look for myself and see if I find any bent pins. I'm sure they would be obvious to locate with the unaided eye.

     

    Incidentally, I would like to also replace the thermal compound if I ever get to that point. If the processor module itself is sensitve to handling, taking it apart to replace the compund must just be asking for trouble. This is something I've done countless times with your avergae PC, mind you, so I have no fear with taking on the G5. I just don't want to make matters worse if I offend it with the smell of my breath.  

  • 16. Re: Power Mac  G5 (Late 2005) won't turn on.
    RatVega™ Level 4 Level 4 (1,910 points)

    Jeff Robertson wrote:

     

    If bent processor pins were involved, I don't think I could have gone as long as I did before the trouble started. I would have had the problem I very first time I tried to turn it on.

    I agree completely. I missed something in your messages... mea culpa.

     

     

    The value I place on the machine wouldn't be worth a trip to have it professionally diagnosed, sadly.

    I'm sure getting someone to even being in the same room with the machine would be cost prohibitive.

    I think my guy charges $85/hr.

     

    Since I have already removed the processor once and had planned to again to replace a possible bad power supply, perhaps I will take a look for myself and see if I find any bent pins. I'm sure they would be obvious to locate with the unaided eye.

    I think I'd be wearing magnifying glasses...  the socket is 5/8" X 1-5/8" and has 300 pins

     

    Incidentally, I would like to also replace the thermal compound if I ever get to that point. If the processor module itself is sensitve to handling, taking it apart to replace the compund must just be asking for trouble. This is something I've done countless times with your avergae PC, mind you, so I have no fear with taking on the G5. I just don't want to make matters worse if I offend it with the smell of my breath.  

    I can't speak to thermal compound, all my G5s are liquid cooled (How else could I have gotten them all rebuilt at no charge after the warranty expired?)

    Good luck!

  • 17. Re: Power Mac  G5 (Late 2005) won't turn on.
    Jeff Robertson Level 1 Level 1 (5 points)

    Well I found a matching power supply on eBay and just finished installing it a short time ago. The machine is turning on now, but all I am seeing is a white screen come up, no beep, no hard drive activity and then after a little while the fans start running very high. Since this seems like an undesireable thing to allow to continue, I force down the machine by holding the power button.

     

    In my past google searches trying to sort out my original problem, I came acorss this scenario many times.

     

    Anyone want to help me cut to the chase and tell me if there is a quick way to get around this? Perhaps another SMU reset is needed?

     

     

    Thanks.

  • 18. Re: Power Mac  G5 (Late 2005) won't turn on.
    Jeff Robertson Level 1 Level 1 (5 points)

    False alarm. It was just a loose power cable connection to the media bay. Booting up fine, now.

     

    So, it would seem there was a bad power supply.

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