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398706-051 ✓ 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 DIMM,1GB PC2-5300 FBD,64Mx8,RoHS

HP DIMM,1GB PC2-5300 FBD,64Mx8,RoHS. 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→ 398706-051
SPECIFICATIONS
Part Number398706-051
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 398706-051 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 7
397411-B21Compatible
HP 2Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin (2x1Gb) Memory Kit - Intel
compatible
416471-001Compatible
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
compatible
398706-851Compatible
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
compatible
398706-951Compatible
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
compatible
445224-B21Compatible
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin (1x1Gb) Memory Kit - Intel for DL180 G1
compatible
446557-001Compatible
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 9
397411-B21SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
398706-851SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
398706-951SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
416471-001SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
442822-B21SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
445224-B21SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
446557-001SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
506731-B21SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
508146-001SUBSTITUTE
HP 1Gb PC2-5300F 667Mhz ECC FBD DR x8 CL5 240-Pin DIMM - Intel
HPE
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FREQUENTLY ASKED QUESTIONS
What is 398706-051?
398706-051 is a HP Dimm,1gb Pc2-5300 Fbd,64mx8,rohs manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace 398706-051?
There are 7 known substitutes for 398706-051: 397411-B21, 416471-001, 398706-851 and 4 more. Substitute compatibility should be verified for your specific system.
Is 398706-051 still available?
398706-051 is currently Unknown.
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Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
Last verified: July 2026