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31ED ✓ Verified by PartsTable
IBM · DIMM
WHAT YOU NEED TO KNOW
2Rx4 = Dual Rank ×4 chip width (standard server) RDIMM = Registered (servers) | LRDIMM = Load-Reduced (max density)
DDR3 ≠ DDR4 ≠ DDR5 — physically incompatible (notch position)
PRODUCT OVERVIEW

The IBM 32GB DDR4 1600MHZ Dram Cdim is a IBM memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
31ED
SPECIFICATIONS
Part Number31ED
ManufacturerIBM
InterfaceDDR4
Capacity32GB
Speed1600MHz
COMPONENT DIAGRAM
ECC 32GB 2Rx4 PC4 1600MHz RDIMM IBM NOTCH ~133.35 mm DDR4 RDIMM | 32GB | 1600MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 31ED MFR IBM 32GB 1600MHz
KEY FEATURES
•
DDR4 Interface
•
32GB Capacity
•
1600MHz Speed
•
DDR4 Memory
TYPICAL APPLICATIONS
  • Server memory expansion for virtualization workloads
  • Database performance optimization (in-memory computing)
  • VDI and remote desktop session hosting
  • High-performance computing (HPC) clusters
  • Mail server and collaboration platform scaling
  • Application server tier expansion
VERIFIED SUBSTITUTES & CROSS-REFERENCES

No verified substitutes available.

LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31ED?
31ED is a IBM 32GB DDR4 1600MHZ Dram Cdim manufactured by IBM.
Is 31ED still available?
31ED is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026