Apple Front Panel Board Cable warranty Repeat steps 4 and 5 for rear fan

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18 Disconnect 3 cables from logic board.

19 Using long-handled Phillips #1 screwdriver, loosen 6 captive screws.

20 Rotate computer to stand vertically. Using

2.5mm hex driver, remove 5 mushroom- head screws.

21 To release 2 latches holding front fan to cage, press down on bottom of cage while using flatblade screwdriver to release latch from top of cage.

22 Slide fan partway into cage, so that fan clears enclosure.

23 Repeat steps 4 and 5 for rear fan.

Note: Processor cage includes two fans, one at each end of cage. Before removing cage from enclosure, you must release 2 latches on each fan and push fans partway into cage.

© 2009 Apple Inc. All rights reserved.

073-1257 Rev. A   9

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Contents Unplug power cord First StepsOpening Computer Required Tools Hard DrivePull hard drive out of far-left drive bay Graphics Card Locate graphics card in slotRemove bracket from enclosure Apple Inc. All rights reserved Checklist for handling card Locate processor tray Processor TrayLocate PCIe fan PCIe FanProcessor Cage Remove 2 screws Slide fan up and out of computerLocate processor cage Repeat steps 4 and 5 for rear fan Lift cage out of enclosure Front Panel Board CableInstalling Replacement Cable Secure 6 captive screws Reconnect 3 cables Slide PCIe fan to the right to lock card in place Reinstall graphics card in slotReplace access panel Closing ComputerReplace hard drive Far-left drive bay