PowerMac G4 MDD Issues

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Tyroler
    New Member
    • Jan 2012
    • 2

    #1

    PowerMac G4 MDD Issues

    I found your Forum on the search for help regarding Mac G4 1.42 Ghz MDD

    Got them for £30.-,said power Unit failed.
    Failed already a Month earlier and got replaced.
    Now,i have a 1.25 Ghz,fully working,so i swapped the logic Board with CPU and Cooper Heatsink,with new Creme on CPU

    When i push power Button Light comes on and goes out with releasing them.After a short While fan comes on and goes to Hurricane Mode.

    Now,i reseated Ram (2 gb),Pci card and CPU when swaping over.
    Battery removing or/and pressing the black Button on the Board makes no Difference.Changing Hard drive also makes no Difference.
    Checking Logicboard,CPU card with Magnifying Glass showed me nothing bad.
    Capacitors seems good.
    well,now
    Anyone having an Idea what i could do net?
    thanx in Advance


    + Just opened the old Powewr Unit which was replaced a Month ago and Fuse is gone.
    Now the Question why
    And,is the Fuse o the other after a Month gone too,but where the Logicboard runs now was a other Logicboard running without problem.
    What were a common fault for blowing the Fuse?
    Last edited by Tyroler; 01-13-2012, 10:38 AM.
  • ratdude747
    Black Sheep
    • Nov 2008
    • 17136
    • USA

    #2
    Re: PowerMac G4 MDD Issues

    Title fixed to fit subject.
    sigpic

    (Insert witty quote here)

    Comment

    • toastygoodness
      Badcaps Veteran
      • Jul 2005
      • 813
      • United States

      #3
      Re: PowerMac G4 MDD Issues

      PRAM reset and the battery for that as well?

      Comment

      • Tyroler
        New Member
        • Jan 2012
        • 2

        #4
        Re: PowerMac G4 MDD Issues

        Yes,did
        Moved now logic Board and CPU in a box which worked with an 1.25 Ghz but is not working now
        Maybe a solder anywhere?

        Comment

        • Toasty
          Badcaps Legend
          • Jul 2007
          • 4171

          #5
          Re: PowerMac G4 MDD Issues

          >>What were a common fault for blowing the Fuse?<<

          PSU brand & model? Common failure for Samsung PSU.
          veritas odium parit

          Comment

          Related Topics

          Collapse

          • Snownomow
            PowerMac G4 MDD ACBel Power Supply issues (API1PC36 400W)
            by Snownomow
            Hello!

            First want to thank folks on this forum (Toasty, etc) for the very useful info I've found here that has allowed me to repair a PowerMac G4 MDD Samsung power supply and get this ACBel one working better!

            I got a PowerMac G4 MDD for free as it was dead (not booting at all). I was able to confirm it was it's ACBel power supply as another (above mentioned Samsung) power supply works ok with the system.

            With this ACBel power supply installed, the system would not boot at all, no power light blink, nothing. I've gone ahead and replaced the "12...
            07-18-2020, 04:56 PM
          • SoulFreeze
            Audio Issues - Realtek ALC3306 - Lenovo Slim Pro 7 14ARP8 - Type 83AX
            by SoulFreeze
            Hi, trying to troubleshoot some problems with this laptop I just finished repairing which had power issues (Burnt Buck converter - SY8883DFC shorted to ground).

            After repairing the above issue, I realized the following remaining problem,
            Sound only comes from bottom speakers, top palmrest speakers don't work. Neither does the headphone jack (static/buzzing).
            The computer recognizes headphones are connected and displays a popup in windows
            Sometimes, the computer will boot up and the sound will be working fine. However, if I run intensive programs and the computer...
            06-21-2025, 09:53 AM
          • Nagyesz
            Lenovo IdeaPad Gaming 3 15ACH - Ideapad 3 well known solder joint issues
            by Nagyesz
            I have a Lenovo IdeaPad Gaming 3 15ACH, which has started exhibiting the well-known issues of the Lenovo IdeaPad 3.

            All stress tests run perfectly, and there are no performance issues. However, the solder joints are almost certainly starting to fail. If the top two screws on the back are not screwed in, moving the screen results in a BSOD or, in some cases, a slight artifact and freeze. This is a 2023 notebook..

            How can I extend its lifespan? Could reflow help?

            It has ryzen 5 5500h, rtx 2050, no soldered ram.

            Example of the artifacts:
            ...
            03-01-2025, 11:11 AM
          • pwnjuice
            Bitlocker issues
            by pwnjuice
            Customers laptop had a Motherboard go bad and replaced it. they want to try to get data but. I am having bitlocker issues. I will list below

            Issue 1: When connect the drive to my computer to decrypt it I get this message. "there are no supported protectors on this drive the drive cannot be unlocked"

            Issue 2: When I run powershell as admin and try manage-bde -protectors -get e: I get this message. " ERROR: An attempt to access a required resource was denied. I also get the same error when I try manage-bde -status e: When I try the same with terminal with
            ...
            01-06-2025, 05:33 PM
          • Skgod
            Asus Rog strix g15 g513ih hn0865 and it's having display issues while running on igpu
            by Skgod
            Hey I am having Asus Rog strix g15 g513ih hn0865 and it's having display issues while running on igpu. Works fine when I open any game or whatsapp windows application. The issues are :
            Black screen, freeze
            The weird thing is that when as long as the laptop is running on igpu the problem keeps happening. But as soon as I open any game or whatsapp windows application, the laptop works completely fine.
            When the screen freeze or black screen I used to move the display lid up and down and it usually works like that.
            So can anyone tell me what would be the possible cause?...
            10-16-2024, 08:11 PM
          • Loading...
          • No more items.
          Working...