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417439-051 ✓ 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 1GB (1X1GB) PC2-5300 2RX8 ECC DIMM

HP 1GB (1X1GB) PC2-5300 2RX8 ECC DIMM. 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→ 417439-051
SPECIFICATIONS
Part Number417439-051
ManufacturerHP
Capacity1GB
COMPONENT DIAGRAM
ECC 1GB 2Rx4 PC4 — RDIMM HP NOTCH ~133.35 mm DDR4 RDIMM | 1GB | — | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 417439-051 MFR HP 1GB —
KEY FEATURES
•
1GB 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
432804-B21Compatible
HP 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 240-Pin (1x1Gb) Memory Kit - Intel
compatible
432930-001Compatible
HP 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 240-Pin DIMM - Intel
compatible
417439-851Compatible
HP 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 240-Pin DIMM - Intel
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
417439-851SUBSTITUTE
HP 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 240-Pin DIMM - Intel
HPE
432804-B21SUBSTITUTE
HP 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 240-Pin DIMM - Intel
HPE
432930-001SUBSTITUTE
HP 1Gb PC2-5300E 667Mhz ECC UB DR x8 CL5 240-Pin DIMM - Intel
HPE
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FREQUENTLY ASKED QUESTIONS
What is 417439-051?
417439-051 is a HP 1GB (1x1gb) Pc2-5300 2Rx8 ECC Dimm manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 417439-051?
There are 3 known substitutes for 417439-051: 432804-B21, 432930-001, 417439-851. Substitute compatibility should be verified for your specific system.
Is 417439-051 still available?
417439-051 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026