IBM JS20 - BladeCenter - 8842 Installation And User Manual page 37

The following illustration shows how to install DIMMs on the system board.
Before you begin, read the documentation that comes with the option.
Complete the following steps to install a DIMM:
1. Read the safety information beginning on page v and "Installation guidelines" on
page 19.
2. If the blade server is operating, shut down the operating system by typing the
shutdown -h now command. If the blade server was not turned off, press the
power-control button (behind the blade-server control-panel door) to turn off the
blade server. See "The control panel buttons and LEDs" on page 13 for more
information about the location of the power-control button.
3. Remove the blade server from the BladeCenter unit. See "Removing the blade
server from the BladeCenter unit" on page 21 for instructions.
4. Carefully place the blade server on a flat, static-protective surface.
5. Open the blade server cover. See "Opening the blade server cover" on page 22
for instructions.
6. Locate the DIMM connectors on the system board. Determine the connectors
into which you will install the DIMMs.
The blade server comes with two 256 MB DIMMs installed in the DIMM 3 (J32)
and DIMM 4 (J40) memory connectors. When you install additional DIMMs, be
sure to install them as a pair, in DIMM connectors 1 and 2 (J25 and J28).
Install the DIMMs in the following order:
Pair
First
Second
7. Touch the static-protective package that contains the DIMM option to any
unpainted metal surface on the BladeCenter chassis or any unpainted surface
on any other grounded rack component. Then, remove the DIMM from the
package.
8. To install the DIMMs, repeat the following steps for each DIMM that you install:
a. Turn the DIMM so that the DIMM keys align correctly with the connector on
the system board.
Attention: To avoid breaking the retaining clips or damaging the DIMM
connectors, handle the clips gently.
DIMM socket 4 (J40)
DIMM socket 3 (J32)
DIMM socket 2 (J28)
DIMM socket 1 (J25)
DIMM connectors
3 and 4 (J32 and J40)
1 and 2 (J25 and J28)
Chapter 4. Installing options
25