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4X77A12186 ✓ 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 4X77A12186
SPECIFICATIONS
ECCNo
Component forServer
Memory voltage1.2 V
Internal memory64 GB
Memory clock speed2933 MHz
Memory form factor288-pin DIMM
Buffered memory typeRegistered (buffered)
Internal memory typeDDR4
COMPONENT DIAGRAM
ECC 64GB 2Rx4 PC4 2933MHz RDIMM LENOV NOTCH ~133.35 mm DDR4 RDIMM | 64GB | 2933MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 4X77A12186 MFR LENOVO 64GB 2933MHz
KEY FEATURES
Up to 64 GB
DDR4 Interface
64GB 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 2
02JG169Compatible
IBM 64Gb PC4-2933Y-R ECC REG DR x4 Performance+ DIMM for ThinkSystem - FRU
compatible
SM37A21317Compatible
IBM 64Gb PC4-2933Y-R ECC REG DR x4 Performance+ DIMM for ThinkSystem - P/N
compatible
LIFECYCLE
StatusUNKNOWN
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 2
SM37A21317SUBSTITUTE
IBM 64Gb PC4-2933Y-R ECC REG DR x4 Performance+ DIMM for ThinkSystem - Option
LENOVO
02JG169SUBSTITUTE
IBM 64Gb PC4-2933Y-R ECC REG DR x4 Performance+ DIMM for ThinkSystem - Option
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 4X77A12186?
4X77A12186 is a Lenovo ThinkSystem 64GB TruDDR4 2933MHz (2Rx4 1.2V) RDIMM manufactured by LENOVO. It is classified as a MEMORY (RDIMM).
What parts can replace 4X77A12186?
There are 2 known substitutes for 4X77A12186: 02JG169, SM37A21317. Substitute compatibility should be verified for your specific system.
Is 4X77A12186 still available?
4X77A12186 is currently Unknown.
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