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SM37A21318 — IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - Option

LENOVO · DIMM
PRODUCT OVERVIEW

SM37A21318: IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - Option.

IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - Option. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

SPECIFICATIONS
Part NumberSM37A21318
ManufacturerLENOVO
Capacity128GB
Speed2933MHz
MORE FROM LENOVO
Popular Lenovo machine pages — browsing only, not a fit claim for SM37A21318.
ThinkSystem SR650 V1 ThinkSystem SR650 V2 ThinkSystem SR630 V1 ThinkSystem SR630 V2 System x3650 M5 System x3550 M5 ThinkServer RD550 System x IBM System x3650 M4 ThinkServer RD650 SD530 System x3500 M4 ThinkServer RD350
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COMPONENT DIAGRAM
ECC 128GB 2Rx4 PC4 2933MHz RDIMM LENOV NOTCH ~133.35 mm DDR4 RDIMM | 128GB | 2933MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN SM37A21318 MFR LENOVO 128GB 2933MHz
KEY FEATURES
•
128GB Capacity
•
2933MHz Speed
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
SUBSTITUTES & CROSS-REFERENCES 2
4X77A12187CompatiblePARTNER
IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - Option
compatible
02JG170CompatiblePARTNER
IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - FRU
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 2
02JG170SUBSTITUTE
IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - P/N
LENOVO
4X77A12187SUBSTITUTE
IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - P/N
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is SM37A21318?
SM37A21318 is a IBM 128Gb PC4-2933Y-R ECC REG 4R x4 Performance+ 3DS DIMM for ThinkSystem - Option manufactured by LENOVO.
What parts can replace SM37A21318?
There are 2 known substitutes for SM37A21318: 4X77A12187, 02JG170. Substitute compatibility should be verified for your specific system.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.