Installing a memory module

Install dual inline memory modules (DIMMs) in the PS703 blade server, or in either the base unit or the expansion unit of a PS704 blade server.

Table 1 shows allowable placements of DIMM modules for the PS703 blade server. Table 2 shows allowable placements of DIMM modules for the PS704 blade server.

Table 1. Memory module combinations for the PS703 blade server

DIMM count	PS703 DIMM slots
	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
2	X			X
4	X			X					X			X
6	X			X	X			X	X			X
8	X			X	X			X	X			X	X			X
10	X	X	X	X	X			X	X			X	X			X
12	X	X	X	X	X			X	X	X	X	X	X			X
14	X	X	X	X	X	X	X	X	X	X	X	X	X			X
16	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X

Figure 1. DIMM connectors for the PS703

Table 2. Memory module combinations for the PS704 blade server

DIMM count	PS704 base blade unit (P1) DIMM slots and expansion unit (P2) DIMM slots
	1 (17)	2 (18)	3 (19)	4 (20)	5 (21)	6 (22)	7 (23)	8 (24)	9 (25)	10 (26)	11 (27)	12 (28)	13 (29)	14 (30)	15 (31)	16 (32)
2	X			X
4	X			X					X			X
6	X			X	X			X	X			X
8	X			X	X			X	X			X	X			X
10	X	X	X	X	X			X	X			X	X			X
12	X	X	X	X	X			X	X	X	X	X	X			X
14	X	X	X	X	X	X	X	X	X	X	X	X	X			X
16	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X

Figure 2. DIMM connectors for the PS704

See Supported DIMMs for additional information about the type of memory that is compatible with the blade server.

To install a DIMM, complete the following steps:

1. Read the Safety topic and the Installation guidelines.
   
2. Read the documentation that comes with the DIMMs.
3. 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 a BladeCenter unit.
4. Carefully lay the blade server on a flat, static-protective surface, with the cover side up.
5. Open and remove the blade server cover. See Removing the blade server cover.
   Note: If you are servicing the base unit of a PS704 blade server, you must first remove the expansion unit. For more information, see Removing the expansion unit for a PS704 blade server.
6. Locate the DIMM connectors on the system board. See the illustration in System-board connectors. Determine the connector into which you will install the DIMM.
7. Touch the static-protective package that contains the part to any unpainted metal surface on the BladeCenter unit or any unpainted metal surface on any other grounded rack component; then, remove the part from its package.
8. Verify that both of the connector retaining clips are in the fully open position.
9. Turn the DIMM so that the DIMM keys align correctly with the connector on the system board.
   Attention: To avoid breaking the DIMM retaining clips or damaging the DIMM connectors, handle the clips gently.
10. Insert the DIMM by pressing the DIMM along the guides into the connector.

    Verify that each retaining clip snaps into the closed position.

    Important: If there is a gap between the DIMM and the retaining clips, the DIMM is not correctly installed. Open the retaining clips to remove and reinsert the DIMM. Install a DIMM filler in any location where a DIMM is not present to avoid machine damage.
11. Ensure that the CFFh card is fully seated by pushing down on it. This card can become unseated when accessing DIMM 16 in the PS703 server and DIMM 16 or DIMM 32 in the PS704 server.
12. Install and close the blade server cover. See Installing and closing the blade server cover.

    Statement 21

    
    CAUTION:
    Hazardous energy is present when the blade server is connected to the power source. Always replace the blade server cover before installing the blade server.
13. Install the blade server into the BladeCenter unit. See Installing the blade server in a BladeCenter unit.