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Apple power mac g4 mirrored drive doors User Manual

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Page 81

Power Mac G4 (Mirror/FW 800) Take Apart - 79
 Video CardReplacement Note:  Install an AGP card in slot 1 only. Install PCI cards in the slots 
labeled PCI 2, 3, 4, and 5.
Warning: Cables with large connectors may interfere with the enclosure in the PCI slot 
numbered 5, making it difficult to close the door and potentially causing damage to the PCI 
card. If this is the case, rearrange the cards in the slots. You may also connect the cable 
after the enclosure door is shut, but be sure to remove the cable...

Page 82

80 - Power Mac G4 (Mirror/FW 800) Take Apart
 SCSI Card
SCSI Card
Note: This section applies to the Power Mac G4 (MIrrored Drive Doors) computer only. For 
the Power Mac G4 (FW 800) computer, the SCSI card is offered only as a third-party 
option, so refer to the third-party vendor for replacement of the card.
Tools
The only tool required for this procedure is a Phillips screwdriver.
Part Location
Preliminary Steps
Before you begin, open the side access panel. 

Page 83

Power Mac G4 (Mirror/FW 800) Take Apart - 81
 SCSI Card
Procedure
1. Disconnect the SCSI cable from the SCSI card.
2. Remove the SCSI card mounting screw. 

Page 84

82 - Power Mac G4 (Mirror/FW 800) Take Apart
 SCSI Card 3. Lift up the SCSI card from the slot on the logic board. 

Page 85

Power Mac G4 (Mirror/FW 800) Take Apart - 83
 SCSI Cable
SCSI Cable
Note: This section applies to the Power Mac G4 (MIrrored Drive Doors) computer only. For 
the Power Mac G4 (FW 800) computer, the SCSI cable is offered only as a third-party 
option, so refer to the third-party vendor for replacement of the cable.
Tools
The only tool required for this procedure is a Phillips screwdriver.
Part Location
Preliminary Steps
Before you begin, open the side access panel. 

Page 86

84 - Power Mac G4 (Mirror/FW 800) Take Apart
 SCSI Cable
Procedure
1. Disconnect the SCSI cable from the SCSI card.
2. Disconnect the SCSI cable from the hard drives at the front and back hard drive 
carriers.
3. Disconnect the SCSI cable from the SCSI terminator at the bottom of the chassis. 

Page 87

Power Mac G4 (Mirror/FW 800) Take Apart - 85
 Battery
Battery
Tools
No tools are required for this procedure.
Part Location
Preliminary Steps
Before you begin, do the following:
• Open the side access panel.
• Remove the video card if a full-length video card extends over the battery. 

Page 88

86 - Power Mac G4 (Mirror/FW 800) Take Apart
 Battery
Procedure
1. Note the orientation of the battery’s positive (+) end.
2. Remove the battery from its holder.
Note: You may first need to spread the two tabs on the holder slightly apart to 
release the battery.
Note: When replacing the battery, make sure the positive (+) end of the battery aligns with 
the + symbol on the battery holder. 

Page 89

Power Mac G4 (Mirror/FW 800) Take Apart - 87
 Heatsink
Heatsink
Note: This procedure is the same for both of the Power Mac G4 models, except for the 
heatsink appearance and screws.
Tools
The following tools are required for this procedure:
• #1 Phillips screwdriver
• #2 Phillips screwdriver
Part Location
Preliminary Steps
Before you begin, open the side access panel. 

Page 90

88 - Power Mac G4 (Mirror/FW 800) Take Apart
 Heatsink
Procedure
1. Remove the heatsink mounting screws:
Power Mac G4 (Mirrored Drive Doors): 
• small #1 Phillips screw at back panel shield
• medium #2 Phillips screws at heatsink bracket
• three large #2 Phillips screws at remaining corners of heatsink 
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