Apple mac pro 8x User Manual

							Mac Pro (8x) Take Apart — Processor Heatsink Cover 51
Procedure
Note: The heatsink cover is held in place by a number of tabs and magnets on the underside of 
the cover. You must release the tabs before you can remove the cover from the enclosure.
Place the fingers of one hand under the lip of the heatsink cover nearest the logic board. Lift 1. 
the lip slightly toward the media shelf to release the tabs and magnets under the top face of 
the cover. 
With your fingers still under the cover’s bottom lip, lift the cover straight up to release the 2.  
remaining tabs and magnets under the front face of the cover
Remove the cover from the enclosure. 3.  
						

							Mac Pro (8x) Take Apart — Processor Heatsink Cover 52
Replacement Note: When reinstalling the processor heatsink cover, make sure the tabs on the 
underside of the cover align with the slots directly below them. ( The slots are on the front fan 
and memory cage on either side of the heatsink cover.)  
						

							Mac Pro (8x) Take Apart — Front Fan Assembly 53
Front Fan Assembly
Tools
The only tool required for this procedure is a long-handled, 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:
Hard drives and hard drive carriers in drive bays 1 and • 2
Any 12-inch PCI Express card• s
Processor heatsink cove• r
Part Location 
						

							Mac Pro (8x) Take Apart — Front Fan Assembly 54
Procedure
Using a long-handled, magnetized #1 Phillips screwdriver, remove the screw at the top rear 1. 
of the front fan assembly that mounts the assembly to the logic board. 
Remove the second Phillips screw at the bottom front of the assembly. 2.   
						

							Mac Pro (8x) Take Apart — Front Fan Assembly 55
Place one hand on each end of the fan, lift straight up, and remove the fan from the 3. 
enclosure. 
Replacement Note: Before re-installing the front fan assembly in the enclosure, make sure that 
the fan cables are routed correctly in the fan channel. 
						

							Mac Pro (8x) Take Apart — Front Fan Assembly 56
Replacement Note: Make sure all AirPort and Bluetooth antenna wires are out of the way before 
lowering the fan assembly onto the logic board.
Replacement Note: When lowering the front fan into the enclosure, slide the guide on the base 
of the fan assembly into the channel on the speaker assembly. 
						

							Mac Pro (8x) Take Apart — Front Fan Assembly 57
Also make sure the latch on the inside top left edge of the fan assembly engages with the slot 
on the inside lip of the enclosure. Then press down until you hear the fan click into place in the 
connector on the logic board. 
						

							Mac Pro (8x) Take Apart — Mac Pro RAID Card and Battery 58
Mac Pro RAID Card and 
Battery
Note: If a Mac Pro RAID Card is installed in a Mac Pro (8x), the standard iPass cable routing has 
been changed so that the cable connects to the card, rather than to the logic board.
Tools
The only tool required for this procedure is a Phillips #1 screwdriver. You might also find a small 
flat-blade screwdriver helpful in releasaing the iPass cable connector.
Preliminary Steps
Before you begin, open the computer, lay it on its side with the access side facing up, and remove 
the following:
All h• ard drives and hard drive carriers
A• ny 12-inch PCI Express cards
Processor heatsink cove• r
Front fan assembl• y
Part Location 
						

							Mac Pro (8x) Take Apart — Mac Pro RAID Card and Battery 59
Procedure
If you have not already done so, loosen the two captive screws that secure the PCI bracket to 1. 
the enclosure and remove the bracket. 
 
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.  
						

							Mac Pro (8x) Take Apart — Mac Pro RAID Card and Battery 60
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. 
Note: The Mac Pro RAID Card must always be installed in slot 4.