Installing Memory - IBM xSeries 455 Installation Manual

10. Carefully install the processor-board assembly and retention bracket.
11. Install the EMC shield on the rear of the server; then, hand tighten the blue
12. Carefully install the memory-board assembly.
13. If you have other options to install or remove, do so now.
14. Close the top cover. Go to "Completing the installation" on page 24.

Installing memory

The following notes describe the types of dual inline memory modules (DIMMs) that
your server supports and other information that you must consider when installing
DIMMs:
v Your server supports 512 MB, 1 GB, and 2 GB DIMMs, for a maximum of 56 GB
v Your server comes with a minimum of two 512 MB DIMMs, installed in slots 1
Attention:
1) Forcing the microprocessor socket lock clockwise beyond the closed
position might damage the socket locking mechanism. Before you
install a microprocessor in the socket, use the hex wrench that is
provided with the microprocessor option to close and open the socket
lock to observe the locking flag in the closed position. Also, note the
resistance of the locking mechanism in the closed position. When
installing the microprocessor, do not force the socket lock clockwise
beyond the closed position. If you need to see the microprocessor
socket lock clearly, shine a flashlight over the microprocessor
connector.
2) Make sure that the microprocessor is aligned and seated correctly
before you proceed. To avoid bending the pins on the microprocessor,
do not use excessive force when pressing it into the socket.
e. Insert the microprocessor gently into the connector. The microprocessor
rests flat on the retention mechanism when properly seated.
f. Lock the socket lock, using the hex wrench that is provided with the
microprocessor option.
g. Tighten the heat-sink screws to secure the microprocessor, using the
T-handled Torx wrench that is provided with the microprocessor option.
h. Carefully slide the power module into the microprocessor.
i. Tighten the power-module screws to secure the power module.
j. Connect the power-module cable to the power module and to the adjacent
power-module cable connector.
thumbscrews to secure the EMC shield.
of system memory. Go to the ServerProven list at http://www.ibm.com/pc/compat/
for a list of memory modules you can use with your server.
and 14. When installing additional DIMMs, you must install two DIMMS at a time,
in the order shown in the following table to maintain performance.
Table 1. DIMM installation sequence
Pair DIMM connectors (port 1)
1 1 and 14
3 2 and 13
5 3 and 12
7 4 and 11
9 5 and 10
Pair DIMM connectors (port 2)
2 15 and 28
4 16 and 27
6 17 and 26
8 18 and 25
10 19 and 24
Chapter 2. Installing options
19