Apple mac pro early 2008 User Manual

							Mac Pro (Early 2008) Take Apart — USB Cable 101
Procedure
Disconnect the USB cable from connector J201 on the front panel board.1. 
Disconnect the USB cable from connector J2D1 on the logic board. 2.  
Remove the cable from the enclosure.3.  
						

							Mac Pro (Early 2008) Take Apart — Logic Board 102
Logic Board
Note: Every time you remove the logic board, you must also remove the two processor heatsinks. 
See the special handling instructions in “Processor Heatsinks for 2.8 and 3.0 GHz Processors” 
and “Processor Heatsinks for 3.2 GHz Processors” in the Take Apart chapter. 
Tools
The only tool required for this procedure is a magnetized Phillips #1 screwdriver.
Preliminary Steps
Before you begin, open the computer, lay it on its side with the access side facing up, and remove 
the following:
• All hard drives and hard drive carriers
All PCI Express card• s
Processor heatsink cove• r
Front fan assembl• y
Top and bottom memory card• s
Memory cage with rear fan• 
Processor Heatsink• s for 2.8 and 3.0 GHz Processors
Processor Heatsink• s for 3.2 GHz Processors
Speaker assembl• y
USB cabl• e
AirPort Extreme card (if installed• )
Bluetooth car• d
IMPORTANT:
If you are working on 
a Mac Pro (Early 2008 
Dual 3.2 GHz), do not 
allow the heatsink to 
be separated from the 
processor for more 
than 30 minutes. If you 
are ordering a new 
logic board, reassemble 
the unit while you are 
waiting for the part to 
arrive. 
						

							Mac Pro (Early 2008) Take Apart — Logic Board 103
Part Location 
						

							Mac Pro (Early 2008) Take Apart — Logic Board 104
Procedure
To keep them out of the way, temporarily tape the antenna cables to the bottom of the 1. 
media shelf or the enclosure. 
 
Important: Be sure to disconnect all cables from the logic board before you remove the 
logic board mounting screws. 
						

							Mac Pro (Early 2008) Take Apart — Logic Board 105
Starting at the back panel side of the logic board and working clockwise around the board, 2. 
disconnect all cables from the logic board. 
Note: There are 14 cables you will be disconnecting from the logic board.  
						

							Mac Pro (Early 2008) Take Apart — Logic Board 106
Using a magnetized #1 Phillips screwdriver, remove the 11 black logic board mounting 3. 
screws.  
						

							Mac Pro (Early 2008) Take Apart — Logic Board 107
Slide the logic board back a short distance from the port openings in the back panel. Make 4. 
sure the ports clear the openings.
Tilt the top edge of the logic board up and maneuver the board out of the enclosure.5.  
						

							Mac Pro (Early 2008) Take Apart — Logic Board 108
Replacement Note: If you are replacing the logic board with a new logic board, do the following:
Remove the protective caps from the new logic board’s processor holders and transfer the • 
caps on the original logic board’s processor holders. Note that logic boards returned to 
Apple without the protective caps may be rejected.
Warning: Be careful not to touch the gold pins in the processor socket on the logic board.
Transfer the processors to the new board: Refer to “• Processors, 2.8 and 3.0 GHz” and 
“Processors, 3.2 GHz” in the Take Apart chapter.
You must also transfer the back ports EMI shield to the new board.•  
						

							Mac Pro (Early 2008) Take Apart — Logic Board 109
Replacement Note: To replace the logic board, tilt it as shown and lower it into the enclosure.
Note: Unlike in earlier Power Mac G5 computers, replacing a logic board in Mac Pro (Early 2008) 
computer does not require running Apple Service Diagnostic for thermal calibration. 
						

							Mac Pro (Early 2008) Take Apart — Front Panel Board 11 0
Front Panel Board
Tools
The only tool required for this procedure is a long-handled, magnetized Phillips #1 screwdriver.
Preliminary Steps
Before you begin, open the computer, lay it on its side with the access side facing up, and remove 
the following:
H• ard drives and hard drive carriers in drive bays 1 and 2
Any 12-inch • PCI Express cards
Processor heatsink cove• r
Front fan assembl• y
Part Location