Thermal Calibration for PowerMac G5

Discussion in 'PowerPC Macs' started by pgrif, Dec 25, 2014.

  1. pgrif, Dec 25, 2014
    Last edited: Dec 25, 2014

    pgrif macrumors regular

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    Eugene, OR
    #1
    I have a Powermac G5 2.7mhz DP and have run Thermal Calibration from ASD 2.5.8. my results have been : Error tafs out of range Replace processor.
    What does this mean? Are my processors shot? The computer seems to run OK with just a bit more fan noise than I would like.
    thanks.
     
  2. Altemose macrumors G3

    Altemose

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    #2
    Not sure but didn't that model PowerMac G5 require ASD 2.6.3?
     
  3. bax2003, Dec 26, 2014
    Last edited: Dec 26, 2014

    bax2003 macrumors 6502a

    bax2003

    Joined:
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    Location:
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    #3
    With Apple Service Diagnostics 2.5.8 you could test these G5s:
    Power Mac G5
    Power Mac G5 (June 2004 Series)
    Power Mac G5 (Late 2004)
    Power Mac G5 (Early 2005)

    Only Late 2005 model with Dual Core CPUs / PCIe / DDR2 require ASD version 2.6.3 and with this problem:
    ASD 2.6.3 for PowerMac G5 (Late 2005) will not boot on the OS portion the DVD, only OF testing is supported. If you attempt to run Diagnostic (OS) from the system picker the system will hang while trying to boot into OS.

    For OP:
    Try to remove CPUs and than put them back, just to be sure.
    By the way, which LCS is on your 2.7 ? Delphi single pump od maybe Panasonic ?
     
  4. pgrif thread starter macrumors regular

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    #4
    number of pumps

    It looks like I have 2 pumps. Panasonic? it is an early 2005 model.
    i also have another problem with this computer. After it is shut off, it needs a 20 minute "rest" before it will restart.
     
  5. Altemose macrumors G3

    Altemose

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    #5
    I could not remember fully! Glad you were able to post this information.

    That sounds like a power supply capacitor issue.
     
  6. pgrif thread starter macrumors regular

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    #6
    Sounds like as long as it works I shouldn't worry about it. It's not doing anything crucial, I have other computers doing the important things. It was given to me because of the flaky startup problem. It's become kind of a hobby to try to get it to work right.
     
  7. poiihy macrumors 68020

    poiihy

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    #7
    Bad PSUs tend to destroy circuitry (mobo, HDD, ODD, etc) so don't put important data on it without any backup
     
  8. bax2003, Dec 26, 2014
    Last edited: Dec 26, 2014

    bax2003 macrumors 6502a

    bax2003

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    #8
    Ok, its dual pump Delphi. While CPUs are out of the case, its good opportunity to check LCS for leaks. I am telling you this because of statistics:
    [​IMG]
    (Red cells indicate repairs significantly above average (ie, less reliable))

    Quite a few 2.7 G5s had a cooling failure, and those are component repairs when those machines were sold, so almost 9-10 years ago....1.35 GHz FSB....I can just imagine 3.0 GHz G5, 1.5 GHz FSB and LSC cooling on chipset and memory controller.
     
  9. pgrif thread starter macrumors regular

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    #9
    Let it die.

    I am thinking that I probably don't want to put much more time and no more money into this computer. It's fun to try to puzzle what's wrong with it, but it's just a hobby.
    I appreciate very much all of the information I've gotten from everyone.
     
  10. Altemose macrumors G3

    Altemose

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    #10
    It may still be worth it to pull the CPUs and check the LCS. What will you do if you decide to abandon the project?
     
  11. pgrif thread starter macrumors regular

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    #11
    What will I do?

    I may check the LCS and the processors, but if give up I'll donate the stripped unit to the place that I volunteer, NextStep. They recycle and refurbish electronic stuff. They have a few of these computer to get parts from.
     
  12. poiihy macrumors 68020

    poiihy

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    Aug 22, 2014
    #12
    Take all the guts out and sell the case! G5 cases are in big demand!
     
  13. Altemose macrumors G3

    Altemose

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    #13
    If the case is in good shape you can strip it and sell it. Like poiihy said, those PowerMac cases are in high demand amongst Hackintoshers.
     
  14. pgrif thread starter macrumors regular

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    #14
    Thermal calibration

    How does synchronizing the fans work? Doesn't thermal calibration do this. The fans on my 2.7 are rather noisy. i've adjusted performance to minimum. I can find no coolant leak, but did find a tiny component(capacitor maybe) loose in the case.
     
  15. ctmpkmlec4 macrumors 6502

    ctmpkmlec4

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    #15
    Can you post a photograph of the loose component?
     
  16. pgrif thread starter macrumors regular

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    #16
    No photo

    i tried every way that I know to get a clear photo of this thing, but I couldn't.
     

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