DDR5 DDIMM Memory Kits for Power 11
Differential DIMM (DDIMM) DDR5 memory modules used across every Power 11 model, scaling from 512 GB on the S1112 up to 64 TB total on the E1180.
Every Power11 model uses DDR5 Differential DIMM (DDIMM) memory, IBM's buffered memory module design that improves bandwidth and RAS (reliability, availability, serviceability) over standard DIMMs. Capacity scales from 512 GB across 4 slots on the S1112 up to 64 TB total across 64 slots on a dual-node E1180.
DDIMM capacity by model
Maximum DDR5 DDIMM memory by model
| Model | DDIMM Slots | Max Memory |
|---|---|---|
| S1112 | 4 | 512 GB (256 GB usable AIX/Linux/VIOS, 64 GB usable IBM i) |
| S1122 | 32 | 4 TB |
| S1124 | 32 | 8 TB |
| L1122 | 32 | 4 TB |
| L1124 | 32 | 8 TB |
| E1150 | 32 per node | 16 TB per node |
| E1180 | 64 total (2 nodes) | 64 TB total |
IBM i partitions on entry models like the S1112 have their own usable-memory ceiling (64 GB) below the platform's physical maximum -- check the specific model page before sizing an IBM i-only configuration.
Related
Power 11 DCM Processor Modules
The Dual-Chip Module (DCM) processor option used across S1122, S1124, L1122, L1124, E1150, and E1180 for maximum core count and throughput.
NVMe U.2 Internal Storage for Power 11
Direct NVMe U.2 storage bays built into every Power11 chassis, scaling from 12.8 TB raw on the S1112 up to 244.8 TB raw on the S1124 and L1124.
Power 11 eSCM Processor Modules
The entry Single-Chip Module (eSCM) processor option used on S1112 and S1122 for cost-effective smaller-core configurations.
NED24 NVMe Expansion Drawer
An external NVMe expansion drawer that extends direct-attached flash storage capacity beyond a Power 11 chassis's internal drive bays.
Frequently Asked
How much memory can a Power 11 server hold?
It depends on the model: the entry S1112 holds up to 512 GB DDR5 (64 GB usable for IBM i), the S1122 and L1122 up to 4 TB, the S1124 and L1124 up to 8 TB, the E1150 up to 16 TB per node, and the flagship E1180 up to 64 TB total across two nodes. All models use DDR5 DDIMM memory modules.