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840755-191 — HP 8Gb PC4-2666V-R ECC REG SR x8 CAS-19 DIMM - AMD - G10

HPE · DIMM
PRODUCT OVERVIEW

840755-191: HP 8Gb PC4-2666V-R ECC REG SR x8 CAS-19 DIMM - AMD - G10.

HP 8Gb PC4-2666V-R ECC REG SR x8 CAS-19 DIMM - AMD - G10. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

SPECIFICATIONS
Part Number840755-191
ManufacturerHPE
Capacity8GB
Speed2666MHz
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COMPONENT DIAGRAM
ECC 8GB 2Rx4 PC4 2666MHz RDIMM HPE NOTCH ~133.35 mm DDR4 RDIMM | 8GB | 2666MHz | PC4 Notch position = DDR4 generation | DDR3/DDR4/DDR5 physically incompatible RDIMM = Registered (servers) | LRDIMM = Load-Reduced | UDIMM = Unbuffered TITLE DDR4 RDIMM PN 840755-191 MFR HPE 8GB 2666MHz
KEY FEATURES
•
8GB Capacity
•
2666MHz Speed
•
Generation 10 Platform
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
SUBSTITUTES & CROSS-REFERENCES 2
838079-B21CompatiblePARTNER
HP 8GB PC4-2666V-R ECC Reg Sr X8 Cas-19 Dimm - AMD - G10
compatible
868841-001CompatiblePARTNER
HP 8GB PC4-2666V-R ECC Reg Sr X8 Cas-19 Dimm - AMD - G10
compatible
LIFECYCLE

No lifecycle data available.

THIS PART SUBSTITUTES FOR 2
838079-B21SUBSTITUTE
HP 8Gb PC4-2666V-R ECC REG SR x8 CAS-19 DIMM - AMD - G10
HPE
868841-001SUBSTITUTE
HP 8Gb PC4-2666V-R ECC REG SR x8 CAS-19 DIMM - AMD - G10
HPE
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FREQUENTLY ASKED QUESTIONS
What is 840755-191?
840755-191 is a HP 8Gb PC4-2666V-R ECC REG SR x8 CAS-19 DIMM - AMD - G10 manufactured by HPE.
What parts can replace 840755-191?
There are 2 known substitutes for 840755-191: 838079-B21, 868841-001. Substitute compatibility should be verified for your specific system.
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PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.