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Green 288-pin DDR4 RDIMM with black memory chips and silver heat spreader

Brute Networks

Brute Networks 840755-191 8GB DDR4 2666 ECC Registered RDIMM 1Rx8 CL15 1.2V

SKU CH-YKX0-YPS95

8GB DDR4 2666 ECC registered RDIMM, CL15 1.2V, HP 840755-191 compatible

  • Capacity8GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • 8GB capacity expands server memory for more virtual machines
  • DDR4 2666 speed accelerates data throughput for demanding workloads
  • ECC registered design detects and corrects errors automatically
  • CL15 latency at 1.2V reduces power draw per module
  • HP 840755-191 compatible with major-brand Samsung, SK Hynix or Micron chips

8GB DDR4 2666 ECC RDIMM for servers

This 8GB DDR4 2666 registered DIMM adds ECC error correction to HP-compatible platforms. It runs at PC4-21300 speed with CL15 latency and 1.20V operation. The module uses a 288-pin layout and major-brand DRAM chips. It is designed to expand memory capacity in supported server chassis.

Suits admins extending HP server life

This module fits administrators who need to maximise installed memory on existing HP systems without replacing hardware. It is not for builders who require unbuffered UDIMMs or non-ECC memory for workstation boards. Buyers needing larger single-module capacities or different voltage ranges should look elsewhere.

Straightforward 288-pin installation

Installation follows standard RDIMM seating in 288-pin DDR4 slots; the registered buffer requires a compatible chipset. Common issues arise when mixing ranks or speeds across channels, which can prevent the system from posting. Verify the server qualification list before adding modules to avoid configuration mismatches.

Points forts

  • 8GB capacity expands server memory for more virtual machines
  • DDR4 2666 speed accelerates data throughput for demanding workloads
  • ECC registered design detects and corrects errors automatically
  • CL15 latency at 1.2V reduces power draw per module
  • HP 840755-191 compatible with major-brand Samsung, SK Hynix or Micron chips

Caractéristiques

BrandHP
Capacity8GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredRegistered
Rank1Rx8
ChipsetMajor Brand Chipset

Questions sur cet article

What type of motherboard slot is required to install this 288-pin DDR4 RDIMM?

A server motherboard with a 288-pin DDR4 DIMM slot that supports registered ECC memory is required for this module to function.

Will this PC4-21300 module downclock automatically if installed alongside slower DDR4 DIMMs already in the server?

Yes, the 2666MHz module will downclock to match the speed of the slowest installed DIMM while maintaining 1.2V operation and ECC functionality.

How can I confirm the module is running at the correct CL15 latency after installation?

Check the memory timing tables in the server BIOS or use a tool like dmidecode to verify the CAS latency reads 15 cycles at the configured speed.

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