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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM1024642666DIMM 8GB DDR4 2666 CL19 memory upgrade

SKU CH-B3FF-G0PVE

8GB DDR4 2666 CL19 DIMM validated for HP EliteDesk 800 G4 tower, SFF and workstation systems

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 8GB DDR4 2666 boosts multitasking speed in compatible HP EliteDesk 800 G4 systems
  • CL19 19-19-19 timing delivers responsive data access for everyday workloads
  • 20V low-voltage operation reduces power draw and heat inside the chassis
  • 288-pin unbuffered DIMM installs directly into the four available memory slots
  • Lifetime manufacturer warranty protects against defects for the life of the module

What this memory is and who it suits

This 8 GB DDR4 module runs at 2666 MHz with CL19 timings and 1.20 V operation. It is built as a 288-pin unbuffered DIMM using a 2Rx8 configuration and carries no ECC or heat spreader. The stick targets owners of HP EliteDesk 800 G4 Tower, SFF or Workstation Edition systems who need a single-slot capacity increase.

Behaviour under sustained load

The module operates at standard JEDEC voltage and timings, so thermal output remains modest during extended workloads. Without a heat spreader, airflow across the PCB handles dissipation in the supported chassis. All installed memory will run at the slowest module speed or the processor’s memory controller limit, whichever is lower.

Checks before ordering

Verify your system has a free 288-pin DDR4 slot and that the platform supports non-ECC unbuffered DIMMs. The EliteDesk 800 G4 family accepts up to 64 GB across four sockets, so confirm the current population leaves room for this stick. A 64-bit operating system is required to address more than 4 GB of total memory.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $39.99
Cheaper than about 80% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.00 per GB
Cheaper than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM1024642666DIMM
Total capacity8 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP/Compaq EliteDesk 800 G4 Series Tower, EliteDesk 800 G4 Series SFF, 800 G4 Workstation Edition
In the box
Included items1 Memory RAM Stick

Questions about this item

How much power does the 1.20V DDR4 2666 module draw when the EliteDesk 800 G4 runs all day?

The stick is rated at 1.20V and unbuffered, so it adds only a few watts to the system power budget during continuous operation.

What must the HP EliteDesk 800 G4 Tower or SFF already have for this 288-pin DIMM to work?

The workstation needs a free DDR4 DIMM slot — up to four sockets are available — and a 64-bit operating system to address the full 8 GB.

If I keep the original memory in my EliteDesk 800 G4 alongside this CL19 2666 MHz stick, what happens?

All installed modules will run at the speed of the slowest module or the CPU limit, so mixing can lower overall memory performance.

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