Apple xserve early 2008 User Manual

							Xserve (Late 2006) Take Apart — Logic Board 111
Disconnect the optical drive cable from the logic board.
2.  
Release the two locking levers on the front panel board cable connector and disconnect the 
3. 
cable from the logic board.  Move the cable aside so you have access to the logic board.  
Loosen the single thumbscrew on the power distribution board and slide the board away 
4.  
from and out of the connector on the logic board.  
 
Note: Don’t remove the power distribution board but make sure its edge connector is all the 
way out of the connector on the logic board. 
						

							Xserve (Late 2006) Take Apart — Logic Board 11 2
Following the order shown, loosen the nine thumbscrews that secure the logic board to the 
5. 
enclosure. Use the same order when replacing the logic board.  
Note: The thumbscrews are captive; you cannot remove them.  
Grasping the logic board only by its expansion card riser and edge as shown, move it 
6.  
forward and up slightly to release it from the rear port openings in the enclosure.
Remove it from the Xserve.
7.   
						

							Xserve (Late 2006) Take Apart — Logic Board 113
Packing the Used Logic Board: Xserve (Early 2008) Only
Important: This packing procedure applies only to Xserve (Early 2008) logic boards. When 
packing the logic board, place the board in an antistatic bag and set it component-side up in the 
return box so that the raised areas on the board fit correctly between the foam supports on the 
box. Don’t bend or flex the logic board.Holding the board at the long sides, place it in the antistatic bag.  
1.  
Note that foam supports are glued to the top of the box, as shown.  
2.   
						

							Xserve (Late 2006) Take Apart — Logic Board 11 4
Place the logic board in the box, making sure it is component-side up and positioned with 
3. 
the Northbridge heat sink at the back of the box. 
Follow any additional return instructions for your region, and close the box.
4.  
Important: Make sure the foam supports align correctly with the raised areas on the board. 
When aligned correctly, the box closes easily.   
						

							Xserve (Late 2006) Take Apart — Logic Board 11 5
Replacement Procedure
Replacement Note: When replacing the logic board, make sure the board’s rear port connectors 
fit through the appropriate openings in the Xserve’s back panel. With the front edge of the 
board raised 1–2 inches (3–5 cm), guide the connectors on the back edge of the board into the 
openings in the back panel of the chassis, then lower the front edge of the board into place.  Take 
special care to fit the clear plastic system identifier button through its opening.
Replacement Note: Remove the battery insulator tab from the battery holder on the 
replacement logic board. Depending on the Xserve model, the battery position may differ from 
what is shown.  
						

							Xserve (Late 2006) Take Apart — Logic Board 11 6
Note: After installing a replacement logic board, be sure to transfer the processors, heat sinks, 
video mezzanine board, any expansion cards, PCI riser cards, and FB-DIMMs to the new board. 
You must also remove the battery insulator tab from the battery holder on the new board.
Note: Be sure to follow the instructions for replacing the grease on the processors before 
installing them in the logic board.
Note: Replacing the logic board in the Xserve changes its Ethernet ID numbers (MAC addresses) 
for both Ethernet ports. The new numbers are printed on an Ethernet label packaged with the 
replacement logic board. After installing the new logic board, place the new Ethernet label 
over the original Ethernet number on the Xserve’s ID tab. Be careful to apply the new sticker 
completely onto the ID tab, smoothing out the label so that it is completely flush with the tab. Do 
not leave any part of the label (such as the corners) sticking up or these might catch and tear in 
the opening in the rear panel where the ID tab slides through when the ID tab is reinserted into 
the enclosure. 
						

							Xserve (Late 2006) Take Apart — Rear ID Button 11 7
Rear ID Button
Tools
The only tool required for this procedure is needlenose pliers.
Preliminary Steps
Before you begin, do the following:Open the Xserve and place the bottom housing on a sturdy, flat surface.
• 
Remove the right PCI-E riser card and any installed expansion card in slot 2
•  .
Part Location 
						

							Xserve (Late 2006) Take Apart — Rear ID Button 11 8
Procedure
Using needlenose pliers, gently squeeze together the two clear plastic prongs that are part 
1.  
of the ID button to release them from the their holes in the logic board.
Gently grasp the body of the button with the needlenose pliers, and pull up and toward the 
2.  
front of the Xserve to carefully disengage the button’s additional two prongs from the logic 
board.
Continue to pull up and toward the front of the Xserve to disengage the button from the 
3. 
opening in the rear panel.
Remove the button from the enclosure.
4.  
 
Replacement Note: When installing the rear ID button, take care not to bend or break the four 
small plastic prongs as you work the button back through the opening in the rear enclosure. 
Make sure all four prongs are properly seated in their respective holes in the logic board. 
						

							Xserve (Late 2006) Take Apart — ID Tab 11 9
ID Tab
Note: Because you must remove both processor heat sinks during the preliminary steps of this 
procedure, you must replace the thermal grease on both processors when reassembling the 
Xserve. New grease and alcohol wipes for cleaning off the previous grease are supplied with the 
replacement ID tab. The grease and wipes are also available through a separate thermal grease 
kit on GSX; order part number 076-1237, which contains enough grease for both processors.
Tools
No tools are required for this procedure.
Preliminary Steps
Before you begin, open the Xserve; place the bottom housing on a sturdy, flat surface; and 
remove the following:Both power supplies
• 
PCI riser cards and any expansion cards in both slots
• 
Airflow duct
• 
Fan array
• 
Backplane-to-logic board I/O cable
• 
Both processor heat sinks
• 
Logic board
•  
						

							Xserve (Late 2006) Take Apart — ID Tab 120
Part Location
Procedure
Once the logic board has been removed from the enclosure, the ID tab will be visible on the 
1.  
inside bottom of the enclosure; the tab protrudes from the rear panel through a slot.