IBM HS40 manual v Before you begin, read the documentation that comes with the DIMMs

vInstall 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/.

vBefore 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

1
DIMM	2
DIMM	3
DIMM		4
DIMM			5
	DIMM		6
	DIMM			7
		DIMM		8
			DIMM

I/O tray release

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.

Chapter 4. Installing options 45