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Green 288-pin DDR4 UDIMM module with black chips, 4GB ECC unbuffered

A-Tech

A-Tech 4GB DDR4 2133MHz ECC UDIMM 1Rx8 Server Memory 840820-001

SKU CH-KKV6-AQNX6

A 4GB DDR4 2133MHz ECC UDIMM module with CL15 latency and 1.2V operation for HP 840820-001 servers

  • Capacity4GB
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Voltage1.20V
  • ECCYes
  • Buffered/RegisteredUnbuffered
  • 4GB DDR4 2133MHz capacity speeds server workloads
  • ECC unbuffered design protects data integrity in critical systems
  • 2V DDR4 standard voltage lowers power draw
  • 1Rx8 single-rank layout simplifies memory-channel population
  • 288-pin UDIMM form factor fits compatible HP 840820-001 slots

Server DDR4 ECC UDIMM 4GB

This A-Tech module provides 4GB of DDR4 ECC unbuffered memory rated at 2133MHz with CL15 latency. It operates at the standard 1.20V and uses a 1Rx8 rank configuration on a 288-pin DIMM form factor. The part is a compatible replacement for HP 840820-001 and is intended for server or workstation systems that support unbuffered ECC DDR4 memory.

Verify DDR4 ECC unbuffered support

Before ordering, confirm that your motherboard or system accepts DDR4 unbuffered ECC UDIMMs at 2133MHz and 1.20V. Check the maximum supported capacity per slot and the total number of available 288-pin DIMM slots to ensure this 4GB module fits your configuration. Some platforms require registered ECC instead, so verify the memory type in your system documentation to avoid incompatibility.

Lifetime warranty and US tech support

The module ships with a lifetime warranty from A-Tech and includes access to United States based technical support before, during, and after purchase. All units undergo quality assurance testing for reliable operation in server environments. No additional software, cables, or mounting hardware are included with this memory module.

Points forts

  • 4GB DDR4 2133MHz capacity speeds server workloads
  • ECC unbuffered design protects data integrity in critical systems
  • 2V DDR4 standard voltage lowers power draw
  • 1Rx8 single-rank layout simplifies memory-channel population
  • 288-pin UDIMM form factor fits compatible HP 840820-001 slots

Caractéristiques

BrandA-Tech
SeriesCompatible Replacement for HP
Model840820-001
Capacity4GB
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Voltage1.20V
ECCYes
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
Features840820-001

Questions sur cet article

Does the 840820-001 module ship alone or as part of a kit?

The listing specifies 1 x 4 GB module, so a single stick is included; no extra cables or brackets are mentioned.

How do I decide between the 2133 MHz and PC4-17000 labels on the same stick?

Both refer to the same DDR4 2133 speed; PC4-17000 is the peak bandwidth rating while 2133 MHz is the clock rate.

Will the CL15 latency and 1.20 V voltage work in my HP server without manual BIOS changes?

The module follows standard DDR4 2133 JEDEC timings at 1.20 V, so it should run at rated speed on compatible HP platforms automatically.

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