IBM HS40 - BladeCenter - 8839 Maintenance And Troubleshooting Manual page 55

v Install only 2.5 V, 184-pin, double-data-rate (DDR), PC2100, registered
synchronous dynamic random-access memory (SDRAM) with error correcting
code (ECC) DIMMs. These DIMMs must be compatible with the latest PC2100
SDRAM Registered DIMM specification, which is available from
http://www.jedec.org/.
v Before you begin, read the documentation that comes with the DIMMs.
The following illustration shows how to install DIMMs on the processor board.
I/O-board tray
DIMM socket
Complete the following steps to install a DIMM:
1. Review the safety information beginning on page 109 and "Installation
guidelines" on page 33.
2. Shut down the operating system, turn off the blade server, and remove the
blade server from the BladeCenter unit. See "Removing the blade server from
the BladeCenter unit" on page 39 for instructions.
3. Carefully lay the blade server on a flat, nonconductive surface.
4. Open the blade server cover (see "Opening the blade server cover" on page
40 for instructions) and lift it off the blade server.
5. Press the I/O-tray release and rotate the I/O-tray open, as shown in the
illustration. The I/O tray is hinged and will support itself in the open position.
6. Locate the DIMM connectors on the processor board. Determine the
connectors into which you will install the DIMMs (see the table on page 44.).
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 processor board.
I/O tray release
Chapter 4. Installing options
45