Apple Processor Cage Fans, Front and Rear User Manual

 Mac Pro

Processor Cage Fans, Front and Rear

Replacement Instructions

First Steps

Shut down computer.1

Wait 10 minutes.

2

Warning: Parts inside computer can be very hot. Allow computer to cool down before continuing.

Unplug all external 3

cables except power cord.

Touch metal PCI cover 4

on back of computer.

Unplug power cord.5

Note: Follow these instructions carefully. Failure to do so could damage your equipment and void its warranty.

Opening the Computer

Hold side access 1

panel and lift latch on back of computer.

Warning: Edges of access panel and enclosure can be sharp. Be careful when handling.

Remove access panel 2

and place it on at

surface covered by soft, clean cloth.

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Required Tools

Phillips #2 screwdriver • RIght-angle, 2.5 mm • hex driver Flatblade screwdriver• Long-handled Phillips • #1 screwdriver

Removing the Installed Fans

Fans are installed in processor cage. To access

fans, you must rst

remove:

Hard drive in far-left • drive bay Graphics card in slot 1• Processor tray• PCIe fan• Processor cage•

Hard Drive

1 Make sure latch on

back panel is up, so that drive is unlocked.

Pull hard drive out of 2

far-left drive bay.

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Graphics Card

3 Locate graphics card

in slot 1.

4 Using Phillips #1

screwdriver, loosen 2 captive screws securing card’s bracket to enclosure.

Remove bracket from 5

enclosure.

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Note: Card is held in place by retention bar. Following two steps explain how to release bar.

Press button on PCIe 6

fan.

Move fan to left, 7

which releases retention bar.

Note: Some graphics cards require 1 or 2 booster cables connecting card to auxiliary power connectors on backplane board. If your card has booster cables, disconnect them from backplane board.

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8 Holding card by top

corners, pull it up out of slot.

Remove card from 9

computer.

Checklist for handling card:

When removing or installing card, handle it only by the edges. Do not touch its connectors • or any components. Don’t rock card from side to side; instead, lift card straight up from connecotr to remove it, • and press card straight into slot to install it. Don’t force card. If you meet a lot of resistance, pull card out. Check connector and slot for • damage or obstructions, then try inserting card again. Pull card gently to see if it is properly connected. If it resists and stays in place and its gold • connectors are barely visible, card is connected.

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Processor Tray

10 Locate processor tray.

11 Press down and

release 2 latches on front of processor tray.

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12 Holding tray by

latches, lift it out of computer.

Place tray DIMM side 13

up on soft, clean cloth.

PCIe Fan

14 Locate PCIe fan.

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15 Remove 2 screws.

Slide fan up and out 16

of computer.

Processor Cage

17 Locate processor

cage.

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18 Disconnect 3 cables

from logic board.

Using long-handled 19

Phillips #1 screwdriver, loosen 6 captive screws.

Rotate computer to 20

stand vertically. Using

2.5 mm hex driver, remove 5 mushroomhead screws.

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.

21 To release 2 latches

holding front fan to cage, press down on bottom of cage while

using atblade

screwdriver to release latch from top of cage.

Slide fan partway 22

into cage, so that fan clears enclosure.

Repeat steps 4 and 5 23

for rear fan.

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24 Lift cage out of

enclosure.

Processor Cage Fans

25 Locate processor cage

fans.

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26 Release fan cables

from clips on bottom of processor cage.

27 Release 4 latches on

front fan and slide fan out of cage.

Note: Latch #4 is on inside of cage.

Repeat above step for 28

rear fan.

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Installing the Replacement Fans

I1 Position front fan in

cage.

Slide fan back until it 2

engages with the 4 latches.

Repeat above two 3

steps for rear fan.

4 Re-insert fan cables in

clips on bottom of processor cage.

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Processor Cage

Important: Before you re-

install cage into enclosure, fans must be inserted partway into cage.

5 Position cage in

enclosure.

Slide front and rear 6

fans into place, so that they engage with latches.

Replace and tighten 7

5 mushroom-head screws.

Secure 8 6 captive

screws.

Reconnect 9 3 cables.

PCIe Fan

10 Slide fan into

enclosure so that fan tabs engage with slots on metal cage.

Press down until fan 11

clicks into place in connector.

Replace 12 2 screws.

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Processor Tray

Holding tray by 13

latches, lower it into processor cage.

Make sure latches are 14

closed ush with front

of processor tray.

Graphics Card

15 Reinstall graphics card

in slot 1.

Note: Align card’s connector with expansion slot and press down until connector is inserted all the way into slot. If installing a 12-inch card, make sure card engages correct slot in PCIe card guide.

If card includes 16

booster cables, reconnect cables.

17 Slide PCIe fan to the

right to lock card in place.

Replace PCI bracket 18

and tighten screws.

Note: Slide bracket under circled tab.

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Hard Drive

19 Replace hard drive in

far-left drive bay.

Closing the Computer

Replace access panel.

1

Note: Make sure

latch is up before you replace panel. If latch is down, panel will not seat correctly.

Push latch down 2

to close and secure access panel.

Warning: Never turn on computer unless all its internal and external parts are in place and it is closed. Operating computer when open or missing parts can cause damage or injury.

 Apple Inc.

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