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Technical Data Sheet
647651-081 ✓ Verified by PartsTable
Kingston Technology · 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
8GB DDR3 1600MHz

The 8GB DDR3 1600MHZ is a Kingston Technology memory module engineered for enterprise server and workstation platforms requiring validated, high-reliability memory. Key specifications include ECC: Yes, CAS latency: 11, Component for: PC/Server, Memory voltage: 1.5 V, Product colour: Black, Green, Internal memory: 8 GB. 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 647651-081
SPECIFICATIONS
ECCYes
CAS latency11
Component forPC/Server
Memory voltage1.5 V
Product colourBlack, Green
Internal memory8 GB
Memory clock speed1600 MHz
Memory form factor240-pin DIMM
Internal memory typeDDR3
Harmonized System (HS) code84733020
Memory layout (modules x size)1 x 8 GB
COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC3 1600MHz RDIMM Kings NOTCH ~133.35 mm DDR3 RDIMM | 8GB | 1600MHz | PC3 Notch position = DDR3 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR3 RDIMM PN 647651-081 MFR Kingston Technology 8GB 1600MHz
KEY FEATURES
Up to 8 GB
DDR3 Interface
8GB Capacity
1600MHz Speed
DDR3 Memory
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
647899-B21Compatible
HP 8Gb PC3-12800R 1600Mhz ECC REG SR x4 CAS-11 DIMM - Intel v1 - G8
compatible
664691-001Compatible
HP 8Gb PC3-12800R 1600Mhz ECC REG SR x4 CAS-11 DIMM - Intel v1 - G8
compatible
647651-08MCompatible
HP 8Gb PC3-12800R 1600Mhz ECC REG SR x4 CAS-11 DIMM - Intel v1 - G8
compatible
LIFECYCLE
StatusUNKNOWN
Availability
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
THIS PART SUBSTITUTES FOR 3
647651-08MSUBSTITUTE
HP 8Gb PC3-12800R 1600Mhz ECC REG SR x4 CAS-11 DIMM - Intel v1 - G8
HPE
647899-B21SUBSTITUTE
HP 8Gb PC3-12800R 1600Mhz ECC REG SR x4 CAS-11 DIMM - Intel v1 - G8
HPE
664691-001SUBSTITUTE
HP 8Gb PC3-12800R 1600Mhz ECC REG SR x4 CAS-11 DIMM - Intel v1 - G8
HPE
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FREQUENTLY ASKED QUESTIONS
What is 647651-081?
647651-081 is a 8GB DDR3 1600MHZ manufactured by Kingston Technology. It is classified as a MEMORY (RDIMM).
What parts can replace 647651-081?
There are 3 known substitutes for 647651-081: 647899-B21, 664691-001, 647651-08M. Substitute compatibility should be verified for your specific system.
Is 647651-081 still available?
647651-081 is currently Unknown.
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