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4X77A12185 — Lenovo 32GB TruDDR4 Performance+ 2933 MHz (2Rx4 1.2V) RDIMM

LENOVO · MEMORY · RDIMM
PRODUCT OVERVIEW

4X77A12185: Lenovo 32GB TruDDR4 Performance+ 2933 MHz (2Rx4 1.2V) RDIMM.

Memory reliability, performance and quality are even more critical today as customers utilize greater memory capacities for Big Data Analytics, Cloud Computing, Virtualization, Database and High Performance Computing workloads. Lenovo offers TruDDR5 and TruDDR4 Memory portfolio for ThinkSystem servers which help dramatically improve workload performance. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MEMORY→ RDIMM→ 4X77A12185
SPECIFICATIONS
Component forServer
Memory voltage1.2 V
Internal memory32 GB
Memory clock speed2933 MHz
Memory form factor288-pin DIMM
Buffered memory typeRegistered (buffered)
Internal memory typeDDR4
Memory layout (modules x size)1 x 32 GB
MORE FROM LENOVO
Popular Lenovo machine pages — browsing only, not a fit claim for 4X77A12185.
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 32GB 2Rx4 PC4 2933MHz RDIMM LENOV NOTCH ~133.35 mm DDR4 RDIMM | 32GB | 2933MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 4X77A12185 MFR LENOVO 32GB 2933MHz
KEY FEATURES
•
Up to 32 GB
•
DDR4 Interface
•
32GB 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 1
02JG168SubstituteBROKER-VERIFIED
Lenovo 32GB TruDDR4 Performance+ 2933 MHz (2Rx4 1.2V) RDIMM
substitute
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 1
02JG168SUBSTITUTE
IBM 32Gb PC4-2933Y-R ECC REG DR x4 CAS-21 Performance+ (1x32Gb) Memory Kit for ThinkSystem - Option
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 4X77A12185?
4X77A12185 is a Lenovo 32GB TruDDR4 Performance+ 2933 MHz (2Rx4 1.2V) RDIMM manufactured by LENOVO. It is classified as a MEMORY (RDIMM).
What parts can replace 4X77A12185?
There is 1 known substitute for 4X77A12185: 02JG168. 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.