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P20501-001 — Memory Specs & Substitutes

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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 16GB (1x16GB) 2RX8 PC4-3200AA REGISTERED SMART MEMORY

HP 16GB (1x16GB) 2RX8 PC4-3200AA REGISTERED SMART MEMORY. 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→ P20501-001
SPECIFICATIONS
Part NumberP20501-001
ManufacturerHP
Capacity16GB
Speed3200MHz
COMPONENT DIAGRAM
ECC 16GB 2Rx4 PC4 3200MHz RDIMM HP NOTCH ~133.35 mm DDR4 RDIMM | 16GB | 3200MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN P20501-001 MFR HP 16GB 3200MHz
KEY FEATURES
•
16GB Capacity
•
3200MHz 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 5
P07642-X21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P11443-191Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P07642-B21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P07642-H21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
P07642-K21Compatible
HP 16GB Pc4-3200AA-R ECC Reg Dr X8 Cas-22 Dimm - AMD - G10
compatible
LIFECYCLE
StatusUNKNOWN
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 5
P07642-B21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P07642-H21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P07642-K21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P07642-X21SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
P11443-191SUBSTITUTE
HP 16Gb PC4-3200AA-R ECC REG DR x8 CAS-22 DIMM - AMD - G10
HPE
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FREQUENTLY ASKED QUESTIONS
What is P20501-001?
P20501-001 is a HP 16GB (1x16gb) 2Rx8 Pc4-3200AA Registered Smart Memory manufactured by HP. It is classified as a MEMORY (RDIMM).
What parts can replace P20501-001?
There are 5 known substitutes for P20501-001: P07642-X21, P11443-191, P07642-B21 and 2 more. Substitute compatibility should be verified for your specific system.
Is P20501-001 still available?
P20501-001 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: August 2026