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Green circuit board with black memory chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM512642400DIMM 4GB DDR4 2400MHz CL17 ECC memory upgrade

SKU CH-AWSR-AQX72

4GB DDR4 2400MHz CL17 unbuffered DIMM upgrade for HP Z238 and Z240 workstations

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 4 GB DDR4 2400 MHz capacity for everyday workloads
  • CL17 timing at 1.2 V for efficient operation
  • 288-pin unbuffered DIMM fits HP Z238 and Z240 workstations
  • Single 4 GB module allows flexible upgrade to 64 GB
  • Major-brand chipset ensures reliable compatibility

Targeted upgrade for HP Z Workstations

This 4 GB DDR4 module is built for HP Z238 and Z240 Tower or SFF workstations. It delivers 2400 MHz speed with CL17 latency at 1.2 V. The unbuffered, non-ECC design matches the factory memory specification for these systems.

Standard DIMM form factor for tool-free installation

The 288-pin DIMM plugs directly into the workstation's four memory slots without adapters. No heat spreader keeps the profile low for small-form-factor chassis. A single stick lets you populate empty slots or replace a failed module individually.

Platform caps total memory at 64 GB across four

The workstation architecture limits combined capacity to 64 GB, so this 4 GB stick contributes to that ceiling. Non-ECC operation means error correction is unavailable for critical workloads. Mixed-rank population rules may apply when adding to existing modules.

How it compares

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

Price $21.99
Cheaper than about 89% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.50 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512642400DIMM
Total capacity4 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP/Compaq Workstation Z238, Z240 Tower/SFF
In the box
Included items1Memory Ram Stick

Questions about this item

What DDR4 speed does the CM512642400DIMM run at and what bandwidth does that provide?

The module operates at DDR4 2400 MHz, which corresponds to a PC4 19200 data rate.

Will this 288-pin DIMM fit inside an HP Z240 Tower or SFF chassis?

Yes, the 288-pin DDR4 DIMM is designed for the HP Z238 and Z240 Tower and SFF workstations listed in the compatibility data.

How do I install the stick and what common mistake should I avoid?

Align the notch on the 288-pin edge connector with the slot key, press down firmly until both retention clips click, and ensure the module is fully seated so the clips lock automatically.

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