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4X77A12185 ✓ Verified by PartsTable
LENOVO · MEMORY · RDIMM
WHAT YOU NEED TO KNOW
Memory is a hot market right now. DDR5 and DDR4 are extremely volatile with data centers driving availability to extreme lows. Always validate machine type and model. Remember: all RAM is Hynix, Samsung, or Micron underneath OEM labels — use that to find alternatives. Key checks: Check OEM alternatives — all RAM is Hynix/Samsung/Micron underneath. Double-check what you're quoting in volatile market.
HOT market — DDR5/DDR4 extremely volatile
PRODUCT OVERVIEW

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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
02JG168Compatible
IBM 32Gb PC4-2933Y-R ECC REG DR x4 CAS-21 Performance+ DIMM for ThinkSystem - FRU
compatible
LIFECYCLE
StatusUNKNOWN
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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.
Is 4X77A12185 still available?
4X77A12185 is currently Unknown.
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