Apple mac pro early 2008 User Manual

Mac Pro (Early 2008) Take Apart — Mac Pro RAID Card and Battery 61
Replacing the Mac Pro RAID Card
Connect the iPass cable to the Mac Pro RAID Card.1. 
Align the card’s connector with expansion slot 4 and press until the connector is inserted all 2.  
the way into the slot. Make sure the card also engages slot 4 in the PCI card guide.
Note:
Don’t rock the card from side to side; instead, press the card straight into the slot. • 
Don’t force the card. If you meet a lot of resistance, pull the card out....

Mac Pro (Early 2008) Take Apart — Memory Cage with Rear Fan 62
Memory Cage with Rear Fan
Tools
The only tools required for this procedure are a long-handled, magnetized #1 Phillips screwdriver 
and a short-handled, magnetized jeweler’s #1 Phillips screwdriver or right-angle, magnetized #1 
Phillips screwdriver.
Preliminary Steps
Before you begin, open the computer, lay it on its side with the access side facing up, and remove 
the following:
PCI Express card installed in slot • 1
Any 12-inch PCI Express...

Mac Pro (Early 2008) Take Apart — Memory Cage with Rear Fan 63
Procedure
Disconnect the rear fan cable from the logic board. 1. 
Using a long-handled, magnetized #1 Phillips screwdriver, loosen the four captive screws that 2.  
mount the memory cage to the logic board.
Rotate the computer so that it is standing vertically. Using a magnetized short-handled or 3. 
right-angled jeweler’s #1 Phillips screwdriver, carefully remove the two short screws that 
mount the memory cage to the bottom panel of the...

Mac Pro (Early 2008) Take Apart — Memory Cage with Rear Fan 64
Note: To remove the memory cage and fan, you must first slide the fan partway into the 
cage. The fan is held in place by three latches, which you must release before sliding the fan. 
Using your forefinger, reach below the fan and release the latch nearest the logic board.4. 
Using a flat-blade screwdriver, release the two latches nearest the front of the computer. 5.  

Mac Pro (Early 2008) Take Apart — Memory Cage with Rear Fan 65
Slide the rear fan into the memory cage. 6. 
Slide the memory cage and fan toward the power supply far enough that the cage clears the 7. 
bottom edge of the enclosure. Then lift the memory cage and fan out of the enclosure. 

Mac Pro (Early 2008) Take Apart — Memory Cage with Rear Fan 66
Replacement Note: If you are installing a new fan in the memory cage assembly, rotate the fan 
into the cage as illustrated. Also note carefully the orientaton of the fan in relation to the cage.
Important: Before you install the cage in the enclosure, the fan should always be inserted 
partway into the cage.
Replacement Note: Before installing the memory cage and fan, make sure all logic board cables 
below the cage are out of the way so...

Mac Pro (Early 2008) Take Apart — Memory Cage with Rear Fan 67
Replacement Note: To install the memory cage and fan, maneuver the cage into position in the 
enclosure. Tighten at least two of the captive mounting screws. Then slide the fan toward the 
back panel, until you hear it snap into place.
Tighten the remaining captive screws, replace the two screws that mount the cage to the 
enclosure’s bottom panel, and reconnect the rear fan cable to the logic board. 

Mac Pro (Early 2008) Take Apart — Northbridge Heatsink 68
Northbridge Heatsink
Tools
The only tool required for this procedure is a long-handled, magnetized 3 mm flathead hex 
screwdriver
Preliminary Steps
Before you begin, open the computer, lay it on its side with the access side facing up, and remove 
the following:
PCI Express card installed in slot • 1
Any 12-inch PCI Express card• s
Processor heatsink cove• r
Top and bottom memory card• s
Memory cage with rear fan• 
Part Location 

Mac Pro (Early 2008) Take Apart — Northbridge Heatsink 69
Procedure
Disconnect the Northbridge heatsink cable from the logic board.1. 
Using a long-handled, magnetized 3 mm flathead hex screwdriver, loosen the four captive 2.  
heatsink mounting screws in the order indicated below. 

Mac Pro (Early 2008) Take Apart — Northbridge Heatsink 70
Lift the heatsink straight up out of the enclosure.3. 
 
Replacement Note: When installing the heatsink, lightly tighten the mounting screws in the 
order indicated below. Then tighten the screws again in the same order to secure the heatsink.