Apple Front and Rear, Processor Cage Fans Processor Tray, Locate processor tray, 073-1254 Rev. A

Models: Processor Cage Fans Front and Rear

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11 Press down and release 2 latches on front of processor tray.

073-1254 Rev. A 6

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Contents

Replacement Instructions First StepsOpening the Computer Processor Cage Fans, Front and RearRequired Tools Hard DriveRemoving the Installed Fans 5 Remove bracket from enclosure Graphics Card3 Locate graphics card in slot 073-1254 Rev. A 6 Press button on PCIe fan 7 Move fan to left, which releases retention barChecklist for handling card Processor Tray 10 Locate processor tray073-1254 Rev. A 12 Holding tray by latches, lift it out of computer PCIe Fan13 Place tray DIMM side up on soft, clean cloth 14 Locate PCIe fan17 Locate processor cage Processor Cage15 Remove 2 screws 16 Slide fan up and out of computer 073-1254 Rev. A 19 Using long-handled Phillips #1 screwdriver, loosen 6 captive screws 25 Locate processor cage fans Processor Cage Fans24 Lift cage out of enclosure 073-1254 Rev. A Note Latch #4 is on inside of cage 28 Repeat above step for rear fan 26 Release fan cables from clips on bottom of processor cage27 Release 4 latches on front fan and slide fan out of cage 2009 Apple Inc. All rights reserved2 Slide fan back until it engages with the 4 latches Installing the Replacement Fans1 IPosition front fan in cage 3 Repeat above two steps for rear fanProcessor Cage PCIe Fan5 Position cage in enclosure Graphics Card 15 Reinstall graphics card in slotProcessor Tray Slide PCIe fan to the right to lock card in placeHard Drive Closing the Computer1 Replace access panel 19 Replace hard drive in far-left drive bay