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Power Mac G4 M5183 Logic Board Replacement

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This guide will show you how to remove the PowerMac logic board.

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  1. Power Mac G4 M5183 Logic Board Replacement, Opening PowerMac G4 M5183 Case: crwdns2935265:01crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Power Mac G4 M5183 Logic Board Replacement, Opening PowerMac G4 M5183 Case: crwdns2935265:01crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Pull on outer latch.

    • Lower door until it is level with your work surface.

    • Before working on the computer make sure it is not plugged into a power supply, then touch a metal object. This discharges static electricity, which could damage the computer.

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  2. Power Mac G4 M5183 Logic Board Replacement, Heat Sink: crwdns2935265:02crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Power Mac G4 M5183 Logic Board Replacement, Heat Sink: crwdns2935265:02crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Use the spudger to pry the clips horizontally off of the heat sink.

    • Fully remove the clips by lifting upwards.

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  3. Power Mac G4 M5183 Logic Board Replacement: crwdns2935265:03crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • Remove the heat sink by pulling upwards, off of the logic board.

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  5. Power Mac G4 M5183 Logic Board Replacement, RAM: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Power Mac G4 M5183 Logic Board Replacement, RAM: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Locate the RAM modules.

    • Pull side tabs outward. The RAM will pop out of the housing.

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  6. Power Mac G4 M5183 Logic Board Replacement, Graphics Card: crwdns2935265:05crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Power Mac G4 M5183 Logic Board Replacement, Graphics Card: crwdns2935265:05crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the single screw with the Phillips #1 screwdriver.

    • Pull the graphics card up and out.

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  7. Power Mac G4 M5183 Logic Board Replacement, Logic Board: crwdns2935265:06crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Power Mac G4 M5183 Logic Board Replacement, Logic Board: crwdns2935265:06crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Remove the six indicated cables attached to the logic board.

    • Use the spudger to remove the modem cable as indicated.

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  8. Power Mac G4 M5183 Logic Board Replacement: crwdns2935265:07crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Power Mac G4 M5183 Logic Board Replacement: crwdns2935265:07crwdnd2935265:02crwdnd2935265:02crwdne2935265:0

    • Unfasten 3 Phillips screws revealed beneath the heat sink on the CPU board.

    • Carefully remove the CPU board from the Mother Board.

    • Remove the barrell nut screws from the Mother Board which held the CPU board.

    • Unfasten 3 Phillips #1 screws on Mother Board as shown in illustration 1.

    • Slide the logic board about a quarter of an inch to free it from the three retaining pins.

    • Pull upwards and outwards to fully remove the logic board.

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  9. Power Mac G4 M5183 Logic Board Replacement: crwdns2935265:08crwdnd2935265:01crwdnd2935265:01crwdne2935265:0

    • After removing the (3) #2 philips screws, remove the (4) 1/4" hex nuts, then slide as directed and remove board.

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Justin Petrilli

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Cal Poly, Team 13-24, Maness Winter 2010 crwdns2935289:0Cal Poly, Team 13-24, Maness Winter 2010crwdne2935289:0

CPSU-MANESS-W10S13G24

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Are the "hex nuts" under the processor board? Could you provide a close up picture of the "nuts?"

D george - crwdns2934203:0crwdne2934203:0

So what is being replaced here? Wouldn’t one have to purchase a new logic board? Any info would be greatly appreciated!

Sandra Cai - crwdns2934203:0crwdne2934203:0

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