Apple mac pro User Manual

							Mac Pro Take Apart — Front Fan Assembly 61
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.
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 
Replacement Note: Be careful not to crimp any AirPort or Bluetooth antenna wires under the fan 
assembly. Also make sure that the fan cables are routed in the fan channel. 
						

							Mac Pro Take Apart — Mac Pro RAID Card and Battery 62
Mac Pro RAID Card & Battery
Note: If a Mac Pro RAID Card is installed in a Mac Pro, 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
PCI Express card installed in slot 1 and a• ny 12-inch PCI Express cards
Top and bottom memory cards• 
Processor heatsink cove• r
Front fan assembl• y
Part Location 
						

							Mac Pro Take Apart — Mac Pro RAID Card and Battery 63
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 Take Apart — Mac Pro RAID Card and Battery 64
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.   
						

							Mac Pro Take Apart — Mac Pro RAID Card and Battery 65
Disconnect iPass cable from the Mac Pro RAID Card. 4. 
 
Note: You may find it helpful to use a small, flat-blade screwdriver to release the cable 
connector. Depress the rear edge of the silver-colored latch on top of the connector. 
Remove the card from the enclosure.5.  
						

							Mac Pro Take Apart — Mac Pro RAID Card and Battery 66
The Mac Pro RAID Card includes its own battery.  6. 
If you are replacing the battery on the card, do the following:
• Disconnect the battery cable from the card.
• Remove the four mounting screws and lift the battery from the card.
Important: Do not drop, disassemble, crush, incinerate, or expose the battery to temperatures 
above 212° F (100° C). Stop using the battery if it appears damaged in any way. Replace the 
battery only with an Apple-authorized battery for this product. Dispose of used batteries 
promptly according to your local environmental guidelines. 
						

							Mac Pro Take Apart — Mac Pro RAID Card and Battery 67
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. Check the connector • 
and the slot for damage or obstructions, then try inserting the card again.
Pull the card gently to see if it is properly connected. If it resists and stays in place and its • 
gold connectors are barely visible, the card is connected. 
Note: System Profiler does not display the serial number for the Mac Pro RAID Card. You can find 
the serial number by checking the serial number sticker on the back of the card. 
						

							Mac Pro Take Apart — Processor Heatsinks 68
Processor Heatsinks
Note: The processor heatsink requires thermal grease for proper operation. Every time you 
remove the processor heatsink, you must replace the thermal grease. New grease and alcohol 
wipes for cleaning off the previous grease are included with replacement processors and 
logic boards. Instructions for applying the grease are included with this procedure. Note that 
replacement processor heatsinks come with the grease already applied.
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:
Hard drives and hard drive carriers in drive bays 1 and • 2
PCI Express card installed in slot • 1
Any 12-inch PCI Express card• s
Top and bottom memory card• s
Processor heatsink cove• r
Front fan assembl• y 
						

							Mac Pro Take Apart — Processor Heatsinks 69
Part Location
Procedure
Disconnect the 2-pin cable for the upper processor (CPU A) heatsink from the logic board. 1.  
						

							Mac Pro Take Apart — Processor Heatsinks 70
Using a long-handled, magnetized 3 mm flathead hex screwdriver, loosen the four captive 2. 
mounting screws for the upper processor heatsink in the order indicated below. 
Lift the heatsink straight up and out of the enclosure.3. 
Move the memory cage out of the way so that you can locate the cable connector for the 4. 
lower processor heatsink. 
Disconnect the cable. 5. 
Repeat steps 2 and 3 for the lower processor (CPU B) heatsink.6.