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PartsTable / MEMORY / 03GX338
03GX338 ✓ 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

Lenovo 64GB TruDDR5 4800MHz (2Rx4) 9x4 RDIMM. 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→ 03GX338
SPECIFICATIONS
Part Number03GX338
ManufacturerLENOVO
InterfaceDDR5
Capacity64GB
Speed4800MHz
COMPONENT DIAGRAM
ECC 64GB 2Rx4 PC4 4800MHz RDIMM LENOV NOTCH ~133.35 mm DDR4 RDIMM | 64GB | 4800MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 03GX338 MFR LENOVO 64GB 4800MHz
KEY FEATURES
•
DDR5 Interface
•
64GB Capacity
•
4800MHz 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 7
4X77A77033Compatible
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - Option
compatible
03KL469Compatible
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
compatible
03KM195Compatible
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
compatible
4X77A81442Compatible
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for AMD ThinkSystem - Option
compatible
SM37B27364Compatible
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - P/N
compatible
SM37B31216Compatible
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - P/N
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 7
SM37B27364SUBSTITUTE
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
LENOVO
SM37B31216SUBSTITUTE
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
LENOVO
SM37B35218SUBSTITUTE
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
LENOVO
03KL469SUBSTITUTE
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
LENOVO
03KM195SUBSTITUTE
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
LENOVO
4X77A77033SUBSTITUTE
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
LENOVO
4X77A81442SUBSTITUTE
IBM 64Gb PC5-4800B-R ECC REG DR x4 EC4 9x4 DIMM for ThinkSystem - FRU
LENOVO
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FREQUENTLY ASKED QUESTIONS
What is 03GX338?
03GX338 is a Lenovo 64GB TruDDR5 4800MHz (2Rx4) 9x4 RDIMM manufactured by LENOVO. It is classified as a MEMORY (RDIMM).
What parts can replace 03GX338?
There are 7 known substitutes for 03GX338: 4X77A77033, 03KL469, 03KM195 and 4 more. Substitute compatibility should be verified for your specific system.
Is 03GX338 still available?
03GX338 is currently Unknown.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026