Your blade server contains connectors for registered dual inline memory modules (RDIMMs).
Each system board in the PS703 or PS704 blade server contains 16 very low profile (VLP) memory connectors for DIMMs. The PS704 supports up to 32 DIMMs. The maximum size for a single DIMM is 8 GB. The maximum memory capacity for a PS703 server is 128 GB. The maximum memory capacity for a PS704 server is 256 GB.
See Parts listing, type 7891 for memory modules that you can order from IBM®.
Memory
module rules:
- Install DIMM fillers in unused DIMM slots for proper cooling.
- Install DIMMs in pairs (1 and 4, 5 and 8, 9 and 12, 13 and 16, 2 and 3, 6 and 7, 10 and 11, and 14 and 15).
- Both DIMMs in a pair must be the same size, speed, type, and technology. You can mix compatible DIMMs from different manufacturers.
- Each DIMM within a processor-support group (1-4, 5-8, 9-12, 13-16) must be the same size and speed.
- Install only supported DIMMs, as described on the ServerProven® website. See http://www-03.ibm.com/servers/eserver/serverproven/compat/us/.
- Installing or removing DIMMs changes the configuration of the blade server. After you install or remove a DIMM, the blade server is automatically reconfigured, and the new configuration information is stored.
- See System-board connectors for DIMM connector locations.
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.
| 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
| 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