Apple power mac g5 late 2005 User Manual

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 1
Using a 3 mm flathead hex driver, remove the four short screws that mount the two 
processor terminal assemblies.  
Using a 4 mm ballhead hex driver, loosen the four captive screws near the middle of the 
processor. 
10.
11. 
						

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 2
Hold the heatsink by the middle and lift the processor/heatsink straight up out of the 
computer. 
  
Warning: The heatsink and processor are one unit. Do not attempt to separate the heatsink 
from the processor. 
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Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 3
Replacement Procedure
Version 1 Processor 
Note: For replacement procedures for Version 2 of the processor, see steps 13-24. 
If you are replacing the processor with a new processor, do the following: 
•  When removing the new processor from its packaging, be careful to lift the processor 
straight up out of the box. Tilting the processor could damage the heatsink seal. 
•  Before installing the processor, remove the caps over the processor connectors. 
 
 
• Loosen the screws in the order marked below.
 
 
1. 
						

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 4
• 
Check to make sure the top edges of both processors align.
 
Lower the processor over the processor standoffs.
Press down on the middle (bridge) of the heatsink to make sure the processor is connected 
to the logic board. Gently rock the heatsink until it feels seated. 
Warning: Don’t press on the end of the heatsink or you’ll damage the processor. 
 
2.
3. 
						

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 5
Note: For steps 4–7, replace or tighten the screws in the order indicated in the illustrations.
Using a 4 mm ballhead hex driver, tighten the four captive screws near the middle of the 
processor. 
Using a 3 mm flathead hex driver, replace the four short screws that mount the two 
processor terminal assemblies.  
4.
5. 
						

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 
Using a 3 mm flathead hex driver, replace the six long processor mounting screws. 
Using a 3 mm flathead hex driver, tighten the four captive float plate screws. 
6.
7. 
						

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 
Reconnect the processor support bar cable with the processor cable.
Replace the processor support bar cable in the clip on the PCI divider.
Replace the processor inlet frame assembly on the front of the heatsink. 
Important: If you are replacing the processor with a new processor, be sure to use the inlet 
frame included with the replacement processor.
Replace the heatsink cover.
Replace the front inlet fan assembly. 
 
Important: Whenever you replace a processor with a new processor, you must run Apple 
Service Diagnostic (once the computer is reassembled). Apple Service Diagnostic for 
Power Mac G5 (Late 2005) is available as a download from the Disc Images section of 
the Apple Service Source website. For more information, see “Thermal Calibration” in the 
Troubleshooting chapter. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8.
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Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 
Version 2 Processor 
Note: For replacement procedures for Version 1 of the processor, see steps 1-12 
If you are replacing the processor with a new processor, do the following: 
•  When removing the new processor from its packaging, be careful to lift the processor 
straight up out of the box. Tilting the processor could damage the heatsink seal. 
•  Before installing the processor, remove the caps over the processor connectors. 
 
 
• Loosen the screws in the order marked below.
 
 
13. 
						

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 
• 
Check to make sure the top edges of both processors align.
 
Lower the processor over the processor standoffs.
Press down on the middle (bridge) of the heatsink to make sure the processor is connected 
to the logic board. Gently rock the heatsink until it feels seated. 
Warning: Don’t press on the end of the heatsink or you’ll damage the processor. 
 
14.
15. 
						

							
Power Mac G5 (Late 2005) Take Apart — Processor (Quad) 100
Note: For steps 16–19, replace or tighten the screws in the order indicated in the illustrations.
Using a 4 mm ballhead hex driver, tighten the four captive screws near the middle of the 
processor. 
Using a 3 mm flathead hex driver, replace the four short screws that mount the two 
processor terminal assemblies.  
16.
17.