Xserve (Late 2006/Early 2008)
Power Distribution Board
Replacement Instructions
Follow the instructions in this document carefully. Failure to follow these instructions could damage your equipment and void its warranty.
Online instructions are available at http://www.apple.com/support/diy/.
Working Safely Inside the Xserve
Always touch the Xserve enclosure to discharge static electricity before you touch any components inside the Xserve. To avoid generating static electricity, do not walk around the room until you have finished working inside the server and have replaced the cover.To minimize the possibility of damage due to static discharge, wear an antistatic wrist strap while you work inside the Xserve.
Warning: Always shut down the Xserve and disconnect the power cords before opening it to avoid damaging its internal components or the components you are installing. Don’t open the server while it is turned on. Even after you shut down the Xserve, its internal components can be very hot. Let it cool before you open it.
Tools Required
The only tool required for this procedure is a Phillips #1 screwdriver.You may also find a small flatblade screwdriver useful in releasing the connectors on the power distribution board cable.
Removing the Xserve from a Rack
1.Alert users that the server will be unavailable for a period of time.
2.Shut down the Xserve (see the Xserve User’s Guide for help) and then wait to let the Xserve internal components cool.
Warning: Always shut down the Xserve before opening it to avoid damaging its internal components or the components you want to install or remove. Don’t open the Xserve or try to install or remove items inside while it is turned on. Even after you shut down the Xserve, its internal components can be very hot. Let it cool down for 5 to 10 minutes before you open it.
073-1103 Rev. B
3.Unplug all cables from the Xserve.
Note: If you have trouble releasing a cable from the back panel, try using a small screwdriver or other flat tool to depress the tab on the cable connector.
4.To avoid inadvertently unlatching a drive module during handling, use the enclosure key to lock the enclosure lock on the front panel.
5.Touch the server’s metal case to discharge any static electricity.
6.Loosen the thumbscrews at both ends of the front panel.
7.Grasp the thumbscrews and pull the Xserve forward until the safety latches engage (about halfway out of the rack).
Latches
Thumbscrews
8.When the safety latches engage, grip the Xserve where it emerges from the rack, press down on the latch tabs with your thumbs, and slide the Xserve the rest of the way out of the rack.
9.Set the Xserve on a flat surface and unlock it.
Opening the Xserve
Loosen the thumbscrews at the back of the top cover and slide the cover back and up to remove it. If you have difficulty removing the cover, check the enclosure lock on the front panel.
Warning: Even after you shut down the Xserve, its internal components can be very hot. Let it cool before you open it.
Important: To minimize the possibility of damage to Xserve components due to static discharge, wear an antistatic wrist strap, if possible, while you work inside the Xserve.
Slide the cover back and lift it off.
Unscrew the two captive thumbscrews.
Xserve (Late 2006/Early 2008) Power Distribution Board Replacement Instructions 2
Removing the Installed Power Distribution Board
Note: Before removing the power distribution board, you must remove the following:
•All Apple drive modules
•Both power supplies
•Power distribution board cable
•Airflow duct
•Fan array
•Drive interconnect backplane
Apple Drive Modules
1.Press the handle on the front of the drive module so that the handle pops out. Then grasp the drive handle, and pull the drive module out of the Xserve.
2.Repeat for all other installed drive modules.
Power Supplies
1.Pull the handle to release the first power supply and slide it out of the bay.
2.Repeat for the second power supply, if installed.
Pull the handle to unlatch the power supply and remove it.
Xserve (Late 2006/Early 2008) Power Distribution Board Replacement Instructions 3
Power Distribution Board Cable
1.Locate the power distribution board cable.
2.Disconnect the power distribution board cable from its connector on the drive interconnect backplane.
3.Disconnect the power distribution board cable from the power distribution board and remove the cable from the Xserve.
Xserve (Late 2006/Early 2008) Power Distribution Board Replacement Instructions 4
Caution: The power distribution board cable connectors are tight and can be difficult to disconnect.You may want to use a small flatblade screwdriver to gently yet firmly pry outwards on the cable connector while depressing the cable connector latch with your thumb and forefinger to separate the connectors.
Airflow Duct
1.Loosen the five Phillips screws that fasten the airflow duct to the fan array.
2.Pull up on either side of the airflow duct, and lift it straight up and out of the Xserve.
Caution: Try not to completely remove the screws from the airflow duct.Tiny black rubber washers hold these screws captive on the underside of the airflow duct. If the screws are completely removed, these washers can easily fall into the enclosure and become lost.
Xserve (Late 2006/Early 2008) Power Distribution Board Replacement Instructions 5
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