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Mirari ppc board - *when/if* available, a new hardware for MorphOS
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  • Order of the Butterfly
    Order of the Butterfly
    Tom01
    Posts: 186 from 2009/9/20
    Quote:

    koszer wrote:
    Quote:

    Quote:

    ThePlayer wrote:
    The question still remains what exact config eliot has and what combination of dual CPUs,bad airflow and aging fans is responsible for the noise.


    I had a MDD Mac and i can't remember that it was noisy.


    AFAIK early MDD's are notorious for their noisy fans in PSU (AcBel). The late ones, with Samsung PSU are quieter.


    It is not the PSU. I have replaced it with an ATX PSU. It is the CPU fan, which is extremely loud. Sounds like a moped.
  • »17.09.25 - 07:32
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  • MorphOS Developer
    geit
    Posts: 1073 from 2004/9/23
    Quote:

    I have replaced it with an ATX PSU. It is the CPU fan, which is extremely loud. Sounds like a moped.


    You need a small cup, 99.9% alcohol (IPA) and a battery to repair your fan.

    Here is how it looks like:



    https://www.geit.de/tmp/PowerMac_FanCleanOrnamentalFountain.mov

    Before the fan was loud like hell. After removing it from the case, you could hit the blade by hand and it did not even rotate 1/4 of a full rotation.

    After running around 20 minutes in its bath, which looked very filthy after a short while if was like new. I put it back without any additional lubrication and it works since than for over three years. Recently it starts to making noice again, but it is runnning at least 18 hours a day for over three years.
  • »17.09.25 - 11:48
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  • Moderator
    Kronos
    Posts: 2479 from 2003/2/24
    Seems a lot of work for 3€ worth of fan.
  • »17.09.25 - 13:10
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  • MorphOS Developer
    geit
    Posts: 1073 from 2004/9/23
    Quote:

    Kronos wrote:
    Seems a lot of work for 3€ worth of fan.


    Well, I did it in the evening. No need to order and wait for a fan. No need to have the none working dismantled PowerMac around until the package arrives and you find the time to swap it.

    So, yes. I prefer having it done in 30 minutes. :D
  • »17.09.25 - 13:43
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  • Order of the Butterfly
    Order of the Butterfly
    sailor
    Posts: 430 from 2019/5/9
    From: Central Bohemi...
    [quote]geit
    thanks for tip, I try renew fans from powernac this way...
    AmigaOS3: Amiga 1200
    AmigaOS4: Micro A1-C, AmigaOne XE, Pegasos II, Sam440ep, Sam440ep-flex, Sam460LE, AmigaOneX1000
    MorphOS: Efika 5200b, Pegasos I, Sam460LE, Pegasos II, Powerbook G4, Mac Mini, iMac G5, Powermac G5 Quad
  • »17.09.25 - 15:28
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