Apple mac pro 8x User Manual

Mac Pro (8x) Take Apart — PCI Express/Graphics Card 31
Warning: When removing or installing a card, handle it only by the edges. Do not touch its 
connectors or any of the components on the card. Lift the card straight out from the connector 
to remove it, and insert it straight into the connector to install it. Do not rock the card from side 
to side and don’t force the card into the slot. Once the replacement card is installed, pull on it 
gently to check that it is properly connected. 
Standard Card...

Mac Pro (8x) Take Apart — PCI Express/Graphics Card 32
Card with Booster Cable
Disconnect the booster cable from the logic board.1. 
Release the small locking clip at the front of the card’s logic board connector by pushing the 2.  
clip up toward the media shelf.
Holding the card by the top corners, gently pull up the card and remove it from its 3. 
expansion slot. 
If you are replacing the booster cable with a new booster cable, disconnect the cable from 4. 
the card. 

Mac Pro (8x) Take Apart — PCI Express/Graphics Card 33
Replacement Note: There are two logic board connectors for booster cables. Connect the 
booster cable for a card in PCI slot 1 to the lower connector. Connect the booster cable for a card 
in PCI slot 2 to the upper connector. 

Mac Pro (Early 2008) Take Apart — Power Supply 34
Power Supply
Tools
The only tools required for this procedure are a magnetized 2.5 mm hex wrench and 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:
Hard drives and hard drive carriers in drive bays 3 and • 4
Optical drive carrier and optical drive• s
Any PCI Express cards that block access to the power supply mounting...

Mac Pro (Early 2008) Take Apart — Power Supply 35
Procedure
Using a Phillips screwdriver, remove the two mounting screws on the power supply cable 1. 
cover located at the back of the optical drive bay. 
Slide the cover toward the top of the enclosure, tilt it up until the two tabs on the cover clear 2.  
the slots in the media shelf, and remove the cover from the enclosure. 
 
Replacement Note: Replace the cover at an angle so that the tabs engage with the slots in 
the media shelf. Then lower the cover...

Mac Pro (Early 2008) Take Apart — Power Supply 36
Using a short-handled, magnetized 2.5 mm hex wrench, remove the four power supply 3. 
mounting screws from the bottom of the media shelf. 
Release the four power supply cables from their hook-and-loop fasteners on the enclosure.4. 
Depress the locking latch on each cable connector and disconnect the four power supply 5. 
cables from the four connectors on the power harness cable.  

Mac Pro (Early 2008) Take Apart — Power Supply 37
Slide the power supply toward the front of the computer. 6. 
Lift the power supply and cables out of the enclosure. 7. 
Replacement Note: When replacing the power supply, be sure to slide it toward the back of the 
computer as far as possible. The power receptacle must align with the opening in the enclosure’s 
back panel and the four screw holes in the power supply must align with the screw holes in the 
media shelf. 

Mac Pro (8x) Take Apart — Power Supply Fan 38
Power Supply Fan
Tools
The only tools required for this procedure are needlenose pliers and scissors or wire cutters 
(optional)
Preliminary Steps
Before you begin, open the computer, lay it on its side with the access side facing up, and remove 
the following:
Hard drives and hard drive carriers in drive bays 3 and • 4
Optical drive carrier and optical drive• s
Any PCI Express cards that block access to the power supply mounting screw• s
Power suppl• y
Part...

Mac Pro (8x) Take Apart — Power Supply Fan 39
Procedure
Disconnect the power supply fan cable from the logic board and thread the cable through 1. 
the opening in the media shelf. 
Using needlenose pliers, pull out the four grommets that mount the power supply fan to the 2.  
media shelf divider. 
Note: You may find scissors or wire cutters useful in snipping off the grommet heads.  

Mac Pro (8x) Take Apart — Power Supply Fan 40
Rotate the fan and remove it from the enclosure.3.