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Catalog/SK hynix/DDR4 LRDIMM/HMAA8GL7CPR4N-WM
SK hynix · Server memory

HMAA8GL7CPR4N-WM

64 GB DDR4-2933 ECC Load-Reduced DIMM (LRDIMM), quad-rank ×4. Sold by HP and HPE under their own part numbers, all cross-referenced below.

Specs from the moderated catalog How we verify →
Specifications JEDEC / manufacturer data
Memory typeDDR4catalog
Module typeLRDIMM · ECC Load-Reduced DIMMcatalog
Capacity64 GBcatalog
SpeedDDR4-2933 · PC4-23464catalog
Organization / rank4Rx4catalog
Voltage1.2 VJEDEC standard for DDR4
Form factor288-pin DIMMstandard for DDR4 LRDIMM
OEM part numbers same module, OEM-branded
VendorOEM part numberVerification
HPP03054-091catalog
HPEP00926-B21✓ verified
HPEP06190-001✓ verified
OEM cross-references are compiled from distributor cross-reference data and OEM documentation. Verify against your vendor's parts list before ordering.
Compatible alternatives same JEDEC specification
ManufacturerPart numberSpec
SamsungM386A8K40CM2-CVF64 GB · DDR4-2933 · LRDIMM · 4Rx4
SamsungM386A8K40CM2-CVFCO64 GB · DDR4-2933 · LRDIMM · 4Rx4
SamsungM386A8K40DM2-CVF64 GB · DDR4-2933 · LRDIMM · 4Rx4
SamsungM386A8K40DM2-CVFBY64 GB · DDR4-2933 · LRDIMM · 4Rx4
Modules match on all key specifications (type, form factor, capacity, speed, rank organization) and are generally interchangeable in servers that accept this spec. Interchangeability is based on matching JEDEC specifications, not per-server testing. Confirm against your server vendor's qualified parts list. View the full family →
Frequently asked
Is HP P03054-091 the same module as HMAA8GL7CPR4N-WM?
Yes. HP resells this SK hynix module under part number P03054-091; HPE does the same as P00926-B21, HPE does the same as P06190-001. The physical module is identical: OEM part numbers are branding, not different hardware.
Can I use a Samsung module instead?
In most servers, yes: M386A8K40CM2-CVF (Samsung), M386A8K40CM2-CVFCO (Samsung), M386A8K40DM2-CVF (Samsung) match this module on every key specification (64 GB, DDR4-2933, LRDIMM, 4Rx4). Keep vendors consistent within a memory bank, and check your server's qualified parts list for edge cases.
What does 4Rx4 mean?
4 ranks of DRAM chips, each 4 bits wide ("×4"). Rank organization affects how many modules a memory controller can drive at full speed, so it's listed as a key spec.