Apple Xserve Intel DIY Procedure for FB-DIMM Memory User Manual
Xserve (Late 2006)
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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
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