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500-1249739 — Memory Specs & Substitutes

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— · 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

COMPAQ 1GB 1X1GB PC1600 ECC DIMM. Key specifications include memory_capacity: 2 X 512 MB MB, memory_device_type: RAM, end_item_identification: SERVER, ML570R, terminal_type_and_quantity: 184 PIN, part_name_assigned_by_controlling_agency: SDRAM, PC1600, 1GB GB. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-542-7931, 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→ 500-1249739
NSN: 5962-01-542-7931
FSC: 5962
CAGE: 8Y261 — UNICOM GOVERNMENT, INC. (USA)
SPECIFICATIONS
memory_capacity2 X 512 MB MB
memory_device_typeRAM
end_item_identificationSERVER, ML570R
terminal_type_and_quantity184 PIN
part_name_assigned_by_controlling_agencySDRAM, PC1600, 1GB GB
NSN5962-01-542-7931
COMPONENT DIAGRAM
ECC 1GB 2Rx4 PC4 — RDIMM OEM 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 500-1249739 MFR OEM 1GB —
KEY FEATURES
•
1GB Capacity
•
MEMORY CAPACITY: 2 X 512 MB MB
•
TERMINAL TYPE AND QUANTITY: 184 PIN
•
MEMORY DEVICE TYPE: RAM
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)
MEMORY CAPACITY2 X 512 MB MB
END ITEM IDENTIFICATIONSERVER, ML570R
TERMINAL TYPE AND QUANTITY184 PIN
PART NAME ASSIGNED BY CONTROLLING AGENCYSDRAM, PC1600, 1GB GB
MEMORY DEVICE TYPERAM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
249676-001Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 500-1249739?
500-1249739 is a COMPAQ 1GB 1X1GB PC1600 ECC DIMM. It is classified as a MEMORY (RDIMM).
What parts can replace 500-1249739?
There is 1 known substitute for 500-1249739: 249676-001. Substitute compatibility should be verified for your specific system.
What is the NSN for 500-1249739?
500-1249739 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5962-01-542-7931. 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.
PartsTable Design LLC · partstable.com
Last verified: August 2026