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462975-001 ✓ Verified by PartsTable
HP · 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
HP 512MB CACHE MEMORY MODULE

The HP 512MB Cache Memory Module is a HP memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-617-9149, indicating validated use in U.S.

government and defense logistics supply chains. 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→ 462975-001
NSN: 7025-01-617-9149
FSC: 7025
CAGE: 28480 — HEWLETT-PACKARD COMPANY DBA HP (USA)
SPECIFICATIONS
Part Number462975-001
ManufacturerHP
Capacity512MB
NSN7025-01-617-9149
COMPONENT DIAGRAM
ECC 512MB 2Rx4 PC4 — RDIMM HP NOTCH ~133.35 mm DDR4 RDIMM | 512MB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 462975-001 MFR HP 512MB —
KEY FEATURES
•
512MB Capacity
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
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYBATTERY BACKED WRITE CACHE MEMORY MODULE
END ITEM IDENTIFICATIONUYQ-117
SPECIAL FEATURES512MB, 72B WIDE MB
PART NAME ASSIGNED BY CONTROLLING AGENCYBATTERY BACKED WRITE CACHE MEMORY MODULE
END ITEM IDENTIFICATIONUYQ-117
SPECIAL FEATURES512MB, 72B WIDE MB
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
462967-B21Compatible
HP Smart Array BBWC 512Mb Upgrade for P410 P411 - Includes Battery
compatible
013224-002Compatible
HP Smart Array BBWC 512Mb Cache Module for P212 P410 P411
compatible
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 2
013224-002SUBSTITUTE
HP Smart Array BBWC 512Mb Cache Module for P212 P410 P411
HPE
462967-B21SUBSTITUTE
HP Smart Array BBWC 512Mb Cache Module for P212 P410 P411
HPE
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FREQUENTLY ASKED QUESTIONS
What is 462975-001?
462975-001 is a HP 512MB Cache Memory Module manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 462975-001?
There are 2 known substitutes for 462975-001: 462967-B21, 013224-002. Substitute compatibility should be verified for your specific system.
What is the NSN for 462975-001?
462975-001 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7025-01-617-9149. This indicates validated use in U.S. government and defense supply chains.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026