Apple mac pro early 2009 User Manual

							Mac Pro (Early 2009) Take Apart — Processor Cage 151 2010-09-27
7 Lift cage out of 
enclosure.
Important: Before you re-
install cage in enclosure, 
fans must be inserted 
partway into cage.
Note: The clips on the 
bottom of the processor 
cage are replaceable. New 
clips are available as a set 
of four; order part number 
922-8963.  
						

							Mac Pro (Early 2009) Take Apart — Processor Cage Fans,  Front and Rear 152 2010-09-27
First Steps
Open computer, lay it 
down with access side 
facing up, and remove:
• Hard drive and drive 
carrier in drive bay 1
• Graphics card in slot 1
• PCIe fan
• Processor tray
• Processor cage
Tools
• ESD wrist strap
• Flatblade screwdriver
Processor Cage Fans,  
Front and Rear  
						

							Mac Pro (Early 2009) Take Apart — Processor Cage Fans,  Front and Rear 153 2010-09-27
Removal
1 Release fan cables 
from clips on bottom 
of processor cage.
2 Release 4 latches on 
front fan and slide fan 
out of cage.
Note: Latch #4 is on 
inside of cage.
3 Repeat step 2 for rear 
fan.  
						

							Mac Pro (Early 2009) Take Apart — Speaker Assembly 154 2010-09-27
First Steps
Open computer, lay it 
down with access side 
facing up, and remove:
• Hard drive and drive 
carrier in drive bay 1
• Graphics card in slot 1
• PCIe fan
• Processor tray
• Processor cage
• Front processor cage 
fan
Note: Speaker is installed 
on front processor cage 
fan. To access speaker, you 
must remove fan from 
cage.
Tools
• ESD wrist strap
• Jeweler’s Phillips #1 
screwdriver
Speaker Assembly  
						

							Mac Pro (Early 2009) Take Apart — Speaker Assembly 155 2010-09-27
Removal
1 Remove 4 screws.
2 Remove speaker 
assembly from fan.  
						

							Mac Pro (Early 2009) Take Apart — Processor Heatsinks, 8 Core 156 2010-09-27
First Steps
Open computer, lay it 
down with access side 
facing up, and remove:
• Processor tray
Tools
• ESD wrist strap
• Long-handled, 3 mm 
flathead hex driver
Processor Heatsinks, 8 Core
Note: This procedure applies to Mac Pro (Early 2009) 8-core processor configurations. For quad-
core processor configuration, see “Processor Heatsink, Quad Core.”
Important: Mac Pro (Early 2009) 8-core processors require thermal grease for proper operation. 
Every time you remove a processor heatsink, you must replace the thermal grease on the 
processor below it. New grease and alcohol wipes for cleaning off the previous grease are 
included with replacement heatsinks, processors, and processor boards.   
						

							Mac Pro (Early 2009) Take Apart — Processor Heatsinks, 8 Core 157 2010-09-27
Removal
Note: See illustration 
for position of CPU A 
and CPU B heatsinks. 
When processor board is 
installed in computer, CPU 
A heatsink sits toward rear 
of computer and CPU B 
heatsink sits toward front 
of computer.
1 Using hex screwdriver, 
loosen 4 captive 
mounting screws in 
order shown.
2 Holding processor 
tray steady with one 
hand, lift heatsink 
straight up out of 
enclosure.
Note: When you lift 
heatsink, processor may 
be bound to underside of 
heatsink by thermal 
grease. To remove 
processor, grasp it by its 
edges and twist.
Important: Do not touch 
components on processor 
top or bottom. Hold 
processor only by the 
edges.   
						

							Mac Pro (Early 2009) Take Apart — Processor Heatsinks, 8 Core 158 2010-09-27
Reassembly
Important: Do steps 1–3 
with processor REMOVED 
from processor board. 
See “Processor, 8 Core.”
Every time you remove 
a processor, even for a 
few seconds, cover the 
processor socket with 
a connector cap. Spare 
caps are packed with 
replacement parts.
1 Using alcohol pad 
included with 
heatsink, processor, or 
processor board 
replacement part, 
clean off used thermal 
grease from 
underside of heatsink 
and top of processor.
Note: Also clean 
processor frame if 
necessary.  
						

							Mac Pro (Early 2009) Take Apart — Processor Heatsinks, 8 Core 159 2010-09-27
2 Using syringe of 
thermal grease 
included with 
replacement part, 
apply narrow bead of 
grease to processor 
chip (raised square on 
top of processor). 
Apply in pattern 
illustrated, using 
approximately 0.1 cc.
Warning: Do not 
apply more grease 
than recommended. 
Also do not allow 
grease to come 
in contact with 
processor frame. 
Grease must not 
overflow into 
processor connector.
3 Reinstall processor 
and processor frame. 
See “Processor, 8 
Core.”  
						

							Mac Pro (Early 2009) Take Apart — Processor Heatsinks, 8 Core 160 2010-09-27
4 Carefully align holes 
on underside of 
heatsink with 
mounting posts in 
processor board, and 
lower heatsink straight 
down onto processor. 
Double-check posts to 
make sure heatsink is 
seated properly.
Warning: Use two 
hands to hold 
heatsink by its sides. 
Be careful of heatsink 
fins, as they can be 
sharp. Do not press 
down on the top of 
the heatsink. 
Important: CPU A heatsink 
(rear) and CPU B heatsink 
(front) are different parts; 
they can be identified by 
their undersides (see 
illustration). Be sure to 
install the correct heatsink 
on each processor.