Product Description
The IBM EM4M 256 GB (2x128 GB) DDIMMs, 4000 MHz or 4800 MHz, 16 Gbit DDR5 Memory (Feature Code: EM4M) is a high-capacity DDR5 memory kit designed for IBM Power Systems. This dual-module kit provides 256 GB total capacity using two 128 GB DDR5 RDIMMs with 16 Gbit DRAM technology, supporting speeds up to 4800 MHz (or 4000 MHz depending on system configuration). It delivers enhanced bandwidth, reduced power usage, and exceptional reliability for memory-intensive IBM i workloads such as large databases, virtualization, and analytics.
Key Features
- 256 GB Total Capacity: 2 × 128 GB DDR5 RDIMMs for high-capacity performance and efficient scaling.
- DDR5 Technology: Greater bandwidth and efficiency compared to DDR4 with 16 Gbit DRAM density.
- Speed Support: Operates at 4000 MHz or 4800 MHz based on processor and system configuration.
- Error Correction & Protection: Advanced ECC and on-die ECC for superior data integrity.
- Low Power Consumption: Improved energy efficiency for large-scale data center environments.
- IBM Power Optimized: Fully tested and qualified for IBM Power Systems running IBM i.
- 60-Day Warranty: Includes a 60-day warranty for reliability.
- Feature Code: EM4M
Technical Specifications
- Feature Code: EM4M
- Capacity: 256 GB (2 × 128 GB)
- Memory Type: DDR5 RDIMM
- Speed: 4000 MHz or 4800 MHz (system-dependent)
- Rank: Dual Rank (or as configured)
- DRAM Density: 16 Gbit
- Voltage: 1.1 V
- Form Factor: 288-pin DDR5 DIMM
- Installation: Requires compatible memory slots; balanced population recommended
- Supported Systems: Power11 models, Power10 models with DDR5 support, and compatible upgrades
Compatibility The IBM EM4M 256 GB (2x128 GB) DDIMMs are compatible with IBM Power Systems running IBM i, including Power11 models such as 9824-22A (Power S1122), 9824-42A (Power S1124), 9856-22H, 9856-42H, and select Power10 models upgraded to DDR5-capable configurations (e.g., 9105-41B Power S1014, 9105-22A Power S1022, 9105-42A Power S1024, 9043-MRX E1050, 9080-HEX E1080). They are supported in systems allowing DDR5 memory (no mixing with DDR4 in the same node). Memory must be installed in balanced pairs or groups per system guidelines for optimal performance. Not compatible with DDR4-only slots or non-supported processor configurations.
