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Computer Memory Solutions

Computer Memory Solutions CM512642133DIMM 4GB DDR4 2133MHz memory upgrade

SKU CH-7Y56-95ERQ

4GB DDR4 2133MHz DIMM with CL15 timing and 1.2V operation for Dell OptiPlex 7040 SFF systems

  • Total capacity4 GB
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Memory timings15-15-15
  • Rated voltage1.2 V
  • 4 GB capacity expands system memory for Dell OptiPlex 7040 SFF
  • DDR4 2133 MHz speed matches PC4 17000 specification for supported platforms
  • CL15 15-15-15 timings at 1.2 V deliver stable unbuffered operation
  • 288-pin non-ECC DIMM fits the 7040 SFF memory slots directly
  • Two-rank 2Rx8 organisation on major-brand chips enables 64 GB maximum per system

Dell OptiPlex 7040 SFF upgrade

This 4GB DDR4 module is built for the Dell OptiPlex 7040 SFF. It uses a 288-pin unbuffered non-ECC design at 1.2V. The single stick adds capacity to systems that support up to 64GB across four sockets. Buyers needing ECC or registered memory cannot use this kit.

Sustained 2133MHz operation

The module runs at DDR4 2133 (PC4 17000) with CL15 timing of 15-15-15. Unbuffered architecture feeds data directly to the memory controller without a register step. Major brand chips maintain the rated frequency under continuous workloads. No heat spreader is fitted, so case airflow must handle the thermal load.

Four-slot 64GB ceiling

The OptiPlex 7040 SFF accepts a maximum of 64GB using its four DIMM slots. Each slot takes a 288-pin DDR4 module at 1.2V. This 4GB stick occupies one slot and leaves three open for further expansion. Systems requiring more than 64GB total cannot be satisfied by this platform.

How it compares

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

Price $19.99
Cheaper than about 91% 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 $5.00 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 nameCM512642133DIMM
Total capacity4 GB
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
Memory timings15-15-15
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsDell OptiPlex 7040 SFF
In the box
Included items1 Memory RAM Stick

Questions about this item

Does the 1.2V DDR4 module add noticeable heat or fan noise inside the OptiPlex 7040 SFF during all-day use?

The stick runs at the standard 1.2V DDR4 voltage with no heat spreader, so it adds minimal thermal load and no extra fan noise in the small-form-factor chassis.

What must the OptiPlex 7040 SFF already have for this 288-pin DIMM to work?

The system needs at least one free DDR4 DIMM slot and a BIOS that supports 2133MHz non-ECC unbuffered memory; the board provides four slots and a 64GB maximum.

Can this CL15 2133MHz stick run alongside the original Dell memory that may be slower or different latency?

Yes, the module will down-clock and match the looser timings of any existing DDR4 DIMMs, so it works mixed with the factory-installed memory.

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