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Green circuit board memory stick with black chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 16GB DDR4 2666 CL19 2Rx8 DIMM EliteDesk 800 G4 D25 memory upgrade

SKU CH-QW90-VP05P

16 GB DDR4 2666 MHz CL19 unbuffered DIMM for EliteDesk 800 G4 Tower, SFF and Workstation Edition

  • Capacity16GB
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.20V
  • 16 GB DDR4 2666 MHz boosts multitasking speed
  • CL19 timing keeps latency low for responsive apps
  • 2Rx8 dual-rank design improves memory throughput
  • 20 V operation reduces power draw and heat
  • Validated for EliteDesk 800 G4 Tower SFF Workstation

Compatible HP EliteDesk 800 G4 upgrade

This 16 GB DDR4 module is built for HP EliteDesk 800 G4 Tower, SFF and Workstation Edition systems. It installs in a 288-pin DIMM slot and runs at 2666 MHz with CL19 timings. The unbuffered, non-ECC design matches the platform's standard memory requirements.

Replaces slower or smaller DIMMs

Upgrading from an 8 GB stick or from a lower-speed module lets the system reach the 64 GB maximum across four sockets. The jump is worth it when multitasking pushes the current memory past its limit. Mixing with existing RAM will cause all modules to run at the slowest installed speed.

Steady throughput under load

The 2Rx8 organisation and 1.20 V operation keep latency stable during extended workloads. Without a heat spreader, the module relies on case airflow, so sustained performance depends on chassis cooling. Matched-pair installation enables dual-channel bandwidth for consistent throughput.

Highlights

  • 16 GB DDR4 2666 MHz boosts multitasking speed
  • CL19 timing keeps latency low for responsive apps
  • 2Rx8 dual-rank design improves memory throughput
  • 20 V operation reduces power draw and heat
  • Validated for EliteDesk 800 G4 Tower SFF Workstation

Specifications

BrandComputer Memory Solutions
ModelCM2048642666DIMM
Capacity16GB
Type288-Pin DDR4 SDRAM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.20V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHP/Compaq EliteDesk 800 G4 Series Tower, EliteDesk 800 G4 Series SFF, 800 G4 Workstation Edition
Package Content1 Memory RAM Stick

Questions about this item

Will this 288-pin DDR4 DIMM fit the EliteDesk 800 G4 SFF chassis?

Yes. The EliteDesk 800 G4 Tower, SFF and Workstation Edition all accept standard 288-pin DDR4 DIMMs, and this module matches the required 1.20 V, CL19, 2666 MHz specification.

What is the correct slot order when adding this stick to an EliteDesk 800 G4 with four sockets?

Populate the sockets in matched pairs starting with the lowest-numbered channels; the service guide labels them DIMM1 and DIMM3 for the first channel, DIMM2 and DIMM4 for the second.

If I later need more than 16 GB, what is the maximum capacity this platform supports?

The EliteDesk 800 G4 series supports up to 64 GB total across its four DIMM slots, so you can add three more 16 GB modules of the same speed and voltage.

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