Xserve (Late 2006)
1 2 3 4
5 6 7 8
FB-DIMM Memory
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/.
Memory Overview
The Xserve (Late 2006) has 8 memory slots. The systems come with at least 1 gigabyte (GB) of
memory on two fully-buered dual inline memory modules (FB-DIMMs). To improve performance
and capacity, you can install additional DIMMs for a total of up to 32 GB of memory. The eight
memory slots are labeled DIMM 1 through DIMM 8.
You can use the following memory in the Xserve (Late 2006):
667 MHz DDR2 ECC FB-DIMMs
•
512 MB, 1 GB, 2 GB, or 4 GB in matching pairs (optimal, 4 or 8 identical DIMMs)
•
36 devices per DIMM, maximum
•
Error-correcting code (ECC)
•
Important: Apple recommends that you use Apple-approved FB-DIMMS. Other FB-DIMMs might
degrade the performance of the Xserve. DIMMs from older Xserve systems are not compatible
with this Xserve.
Note: Before you purchase DIMMs other than those recommended by Apple, make sure that
the memory manufacturer conforms to the Joint Electronic Device Engineering Council (JEDEC)
073-1086 Rev. A
specication. Make sure that the DIMMs support the correct timing modes and that the Serial
The server comes
with at least 2 DIMMs
Add the next pair
in these two slots
(Back)
1 2 3 4 5 6 7 8
(Front)
Add the next pair
in these two slots
Add the next pair
in these two slots
Presence Detect (SPD) feature has been implemented in accordance with the JEDEC specication.
To check DIMM compatibility, see the Macintosh Products Guide on Apple’s website at www.
apple.com/guide. You can purchase Apple-approved memory online from the Apple Store at
www.apple.com/store.
Installation Rules
You must install DIMMs in pairs, and the DIMMs in each pair must be identical (the same
size, speed, etc.). The rst pair is installed in slots 1 and 2. Install the next pair in slots 3 and 4.
Subsequent pairs go slots 5 and 6, and then slots 7 and 8.
For Best Performance
For the best performance, use identical DIMMs in all slots and ll up slots 1 through 4 before you
install DIMMs in slots 5 through 8. If you don’t have eight identical DIMMs, install identical DIMMs
in slots 1 through 4 and a second set of four identical DIMMs in slots 5 through 8. If you can, after
you ll slots 1 through 4, add a full set of four DIMMs in slots 5 through 8 instead of just a pair in
slots 5 and 6.
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 nished 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.
Xserve (Late 2006) FB-DIMM Memory Replacement Instructions 2
Tools Required
Latches
Thumbscrews
No tools are required for this procedure.
Removing the Xserve from a Rack
1.
Alert users that the server will be unavailable for a period of time.
Shut down the Xserve (see the Xserve User’s Guide for help) and then wait to let the Xserve
2.
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.
Unplug all cables from the Xserve.
3.
Note: If you have trouble releasing a cable from the back panel, try using a small screwdriver
or other at 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.
Touch the server’s metal case to discharge any static electricity.
5.
Loosen the thumbscrews at both ends of the front panel.
6.
7.
Grasp the thumbscrews and pull the Xserve forward until the safety latches engage (about
halfway out of the rack).
When the safety latches engage, grip the Xserve where it emerges from the rack, press down
8.
on the latch tabs with your thumbs, and slide the Xserve the rest of the way out of the rack.
Set the Xserve on a at surface and unlock it.
9.
Xserve (Late 2006) FB-DIMM Memory Replacement Instructions 3
Opening the Xserve
Unscrew the two
captive thumbscrews.
Slide the cover back and lift it off.
ConnectorsNotchEjectors
Loosen the thumbscrews at the back of the top cover and slide the cover back and up to remove
it. If you have diculty 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.
Removing the Installed FB-DIMM
Push down the ejectors on the FB-DIMM slot.
1.
Holding the FB-DIMM by both top corners, lift it straight up out of the Xserve.
2.
Warning: When removing or installing the DIMM, handle it only by the edges. Do not touch
its connectors. Lift the DIMM straight up from the connector to remove it, and insert it
straight down into the connector to install it. Do not rock the DIMM from side to side.
Xserve (Late 2006) FB-DIMM Memory Replacement Instructions 4
Installing the Replacement FB-DIMM
ConnectorsNotchEjectors
Position the replacement FB-DIMM over the memory slot.
1.
Note: The FB-DIMM is designed to t into the slot only one way. Be sure to align the notch in
the FB-DIMM with the small rib inside the slot.
Press down until the FB-DIMM ejectors snap into place.
2.
Closing the Xserve
Replace and secure the cover.
1.
Slide the Xserve back into the rack, and tighten the front thumbscrews to secure the Xserve
2.
in the rack.
If the server case was locked, use the enclosure key to lock the security lock on the front
3.
panel.
Xserve (Late 2006) FB-DIMM Memory Replacement Instructions 5
Apple Computer, Inc.
© 2006 Apple Computer, Inc. All rights reserved.
Under the copyright laws, this document may not be copied, in whole or in part, without the
written consent of Apple.
Every eort has been made to ensure that the information in this document is accurate. Apple is
not responsible for printing or clerical errors.
Apple
1 Innite Loop
Cupertino, CA 95014-2084
USA
+ 1 408 996 1010
http://www.apple.com
Apple, the Apple logo, Mac, Macintosh, and Xserve are trademarks of Apple Computer, Inc.,
registered in the U.S. and other countries.
Xserve (Late 2006) FB-DIMM Memory Replacement Instructions 6
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