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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM1024642666DIMM 8GB DDR4 2666MHz CL19 2Rx8 1.20V memory upgrade

SKU CH-70P3-R4FFQ

8GB DDR4 2666MHz CL19 DIMM validated for HP EliteDesk 705 G5 and 800 G5 systems

  • Total capacity8 GB
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 8 GB capacity expands system memory for demanding workloads
  • DDR4 2666 MHz speed delivers responsive data throughput
  • CL19 latency timing supports stable operation
  • 20 V low voltage reduces power draw
  • Validated for HP EliteDesk 705 G5 SFF and 800 G5 series

8GB DDR4 upgrade for HP EliteDesk 705 G5 and 800 G5

This 8GB DDR4 2666MHz CL19 module is built for HP EliteDesk 705 G5 Series SFF, 800 G5 Series Tower, 800 G5 Series SFF and Workstation Z4 G4 (Core X) systems. It adds 8GB of unbuffered, non-ECC memory to supported desktops and workstations. The single 288-pin DIMM runs at 1.20V. It targets owners of those specific HP platforms who need a straightforward capacity increase.

Unbuffered 288-pin DIMM with major-brand chips

The stick uses a standard 288-pin DDR4 form factor without a heat spreader, so it fits the stock slots in the listed HP chassis. Major-brand chipset components are specified by the manufacturer. Unbuffered, non-ECC operation matches the memory controller in the compatible EliteDesk and Workstation models. One module ships in the package, leaving the remaining slots available for further expansion up to the platform limit.

Verify your exact model

Confirm the system is one of the named HP EliteDesk 705 G5 SFF, 800 G5 Tower, 800 G5 SFF or Workstation Z4 G4 (Core X) units. The platform supports a maximum of 128GB across four sockets, so total capacity depends on how many slots you populate. A 64-bit operating system is required to address more than 4GB of memory. Mixing modules will cause all memory to run at the speed of the slowest installed part.

How it compares

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

Price $36.99
Cheaper than about 82% 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 $4.62 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

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 705 G5 Series SFF, 800 G5 Series Tower, 800 G5 Series SFF, Workstation Z4 G4 (Core X)
In the box
Included items1 Memory RAM Stick

Questions about this item

What speed does the DDR4-21300 2666MHz standard deliver on this CM1024642666DIMM module?

The module runs at DDR4 2666 (PC4 21300) with timings of 19-19-19 and CAS latency CL19 at 1.20V.

Will the 288-pin DIMM fit the four slots in my HP EliteDesk 800 G5 SFF or Z4 G4 workstation?

Yes, it is a standard 288-pin unbuffered non-ECC DIMM validated for those platforms which provide four memory sockets.

Which slots should I populate first when installing a single 8GB stick in a four-slot HP EliteDesk 800 G5 Tower?

Install the module in the first slot of the primary channel — usually labelled DIMM1 or coloured differently — so the memory controller trains correctly.

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