Mac Pro ATI Radeon Graphics Card Replacement Instructions First Steps 1 Shut down computer. 2 Wait 10 minutes. Note: Follow these instructions carefully. Failure to do so could damage your equipment and void its warranty. Warning: Parts inside computer can be very hot. Allow computer to cool down before continuing. 3 Unplug all external cables except power cord. 4 Touch metal PCI cover on back of computer. 5 Unplug power cord.
PCIe Slots Your computer’s backplane board includes one double-wide PCI Express (PCIe) graphics slot and three PCIe expansion slots, for a total of four slots. All four slots support 16-lane cards. Slot electrical specs: • Slots 1 and 2: x16 PCIe 2.0 • Slots 3 and 4: x4 PCIe 2.0 Important: Combined maximum power consumption for all four PCIe slots must not exceed 300 W. Required Tool Phillips #1 screwdriver © 2009, 2010 Apple Inc. All rights reserved. 073-1249 Rev.
Removing the Installed Card 1 Locate card. 2 Using Phillips #1 screwdriver, loosen 2 captive screws securing card’s bracket to enclosure. 3 Remove bracket from enclosure. © 2009, 2010 Apple Inc. All rights reserved. 073-1249 Rev.
Note: If card is held in place by retention bar, complete steps 4 and 5. Otherwise, release small locking clip at front of card’s connector by pushing clip up. Then go to step 6. 4 Press button on PCI slider. 5 Move slider to left, which releases the retention bar. 6 Disconnect card’s power cable(s) from backplane board. 7 Holding card by top corners, pull it up out of slot and remove card from computer.
Installing the Replacement Card Note: You can install card in PCI slot 1, 2, or 3. Installed in slot 2, it blocks slot 3. Installed in slot 3, it blocks slot 4. Because of card’s height, do not install it in slot 4. 1 Transfer original card’s cable(s) to replacement card. 2 Holding card with both hands, position fence end of card inside enclosure just above PCI fence cage. 3 Rotate other end of card into correct slot of card guide. © 2009, 2010 Apple Inc. All rights reserved. 073-1249 Rev.
4 Connect card’s power cable(s) to connectors on backplane board. Card with 1 Cable: Connect cable for card in PCI slot 1 to connector A. Connect cable for card in slot 2 to connector B. Card with 2 Cables: Connect both cables to the 2 power connectors. Note: If more than one card is installed, you may find it easier to connect the cable(s) to the backplane board before connecting them to the card. 5 With both hands, level card horizontally.
8 Place right hand outside enclosure opposite card. 9 Gently adjust card toward rear of enclosure while holding enclosure with an inward counter force. 10 Make sure openings in card fence align with holes in top of PCI fence cage, as shown. © 2009, 2010 Apple Inc. All rights reserved. 073-1249 Rev.
Important: The following step is critical for correct Bluetooth performance. Correct Alignment: Covers are parallel Incorrect Alignment: Covers are not parallel 11 Verify that all PCI fence covers are properly seated as in step 10. Then view alignment of covers from rear of enclosure. If aligned correctly, all covers should be parallel and show even gaps from slot to slot. If gaps are uneven, re-adjust fence covers. 12 Replace PCI bracket and tighten screws.
13 Slide PCIe fan to the right to lock card in place. © 2009, 2010 Apple Inc. All rights reserved. 073-1249 Rev.
Closing the Computer 1 Replace access panel. Note: Make sure latch is up before you replace panel. If latch is down, panel will not seat correctly. 2 Push latch down 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, 2010 Apple Inc. All rights reserved. This document is protected under U.S.
