Apple Processor Cage Fans, Front and Rear User Manual

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 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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073-1254 Rev. A 1
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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.
© 2009 Apple Inc. All rights reserved.
This document is protected under U.S. Copyright Law and International Treaties, and no part of this document may be reproduced in any form without written permission from Apple.
Apple is not responsible for typographical, printing, or inadvertent errors.
Apple Inc. 1 Innite Loop Cupertino, CA 95014-2084 USA + 1 408 996 1010 www.apple.com
Apple, the Apple logo, and Mac are trademarks of Apple Inc., registered in the U.S. and other countries.
© 2009 Apple Inc. All rights reserved.
073-1254 Rev. A 15
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