Apple power mac g4 agp graphics User Manual

							 
 Take ApartProcessor Module, PCI Graphics  -   39 
Processor Module, PCI 
Graphics 
Before you begin, open the 
side access panel. 
Note: 
 The Power Mac G4 
(PCI Graphics) processor 
requires a jumper installed 
at J25 on the logic board.  
						

							 
 Take ApartProcessor Module, PCI Graphics  -   40 
1. Remove the screw that 
attaches the heatsink 
ground wire to the logic 
board.  
±
 
Warning: 
  The heatsink 
may be hot to the touch. If 
the computer has been 
operating, allow it to cool 
down before continuing.
2. While pressing down on 
the top of the heatsink 
clip, use a small 
flatblade screwdriver to 
release the clip by 
lifting up and out on its 
center front tab. 
						

							 
 Take ApartProcessor Module, PCI Graphics  -   41 
3. Remove the heatsink clip 
and lift the heatsink off 
the processor module. 
4. Lift the lever to release 
the processor module. 
						

							 
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5. Holding the processor by 
the edges, gently lift it 
straight up to disconnect 
it from the logic board.  
Caution: 
 Be careful not 
to bend the pins under-
neath the module. 
Important: 
  If you are only 
replacing the processor 
module, stop here. If, 
however, you are removing 
the processor module to 
replace the logic board, 
continue with the next page. 
						

							 
 Take ApartProcessor Module, PCI Graphics  -   43 
6. Remove the warranty 
sticker and jumper 
block only if you are 
replacing the logic 
board.
White jumper: 400 MHz
Blue jumper: 350 MHz 
Caution: 
 When removing the 
jumper, be sure not to leave 
its inner metal clips on the 
old jumper connector. If the 
clips are left behind, install 
a new jumper on the new 
board. If you use a jumper 
without clips, or improper-
ly install the jumper, the 
unit could fail to start up. 
						

							 
 Take ApartProcessor Module, PCI Graphics  -   44
7. Install the jumper block 
with the gold connector 
pins facing toward the 
board. Be sure the pins 
are covered as shown.
Processor
Jumper 
Block400 MHz
White350 MHz
Blue 
						

							 Take ApartProcessor Module, PCI Graphics  -   45
Replacement Note: Position 
the processor module over 
the slot, seat it evenly, and 
press down gently on the 
module to install it. If you 
are installing a new 
processor, install a gap 
filler on it as illustrated. 
Caution: On modules with 
capacitors, make sure all 
capacitors show through the 
opening in the gap filler. 
						

							 Take ApartProcessor Module, PCI Graphics  -   46
Important: If you are 
replacing the processor 
module, you must also 
transfer the replacement 
moduleÕs connector cover to 
the connector on the original 
module before returning it 
to Apple. Make sure the hole 
in the cover aligns with pin 
one (marked by a white V) 
on the connector.  
						

							 Take ApartLogic Board, Power Mac G4 (QuickSilvers)  -   47
Logic Board, Power 
Mac G4 (QuickSilvers)
Before you begin, open the 
side access panel and remove 
the following:
¥ video card
¥ processor fan
¥ processor module
¥ PCI cards (if present)
¥ modem (if present)
¥ AirPort card (if present)
±Warning:  Be sure to 
reinstall the heatsink after 
completing this procedure. 
Operating the computer 
without the heatsink in place  
						

							 Take ApartLogic Board, Power Mac G4 (QuickSilvers)  -   48
will destroy the processor. 
1. Disconnect all cables 
from the logic board.
2. Using a Phillips 
screwdriver, remove 
the four logic board 
mounting screws.
3. Remove the three 
processor module 
standoffs.