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Green circuit board SODIMM module with black memory chips and gold edge contacts

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3L 1866MHz SODIMM memory upgrade

SKU CH-QEHZ-X5BD4

A 4 GB DDR3L 1866 MHz SODIMM module built for Dell Inspiron 15 3000 Series laptops

  • Total capacity4 GB
  • Rated speedDDR3L 1866 (PC3L 14900)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL13
  • Memory timings13-13-13
  • Rated voltage1.35 V
  • Boosts Dell Inspiron 15 3000 responsiveness with 4 GB DDR3L 1866 MHz module
  • Low 1.35 V DDR3L voltage cuts power draw and heat in slim laptops
  • CL13 13-13-13 timing delivers snappy data access for everyday multitasking
  • Single 204-pin SODIMM fits one of two slots for simple 16 GB max upgrade
  • Major-brand chipset and lifetime warranty ensure reliable long-term operation

System-Specific 4GB DDR3L SODIMM

This 4GB DDR3L 1866MHz SODIMM module is built for Dell Inspiron 15 3000 Series notebooks requiring a 204-pin unbuffered upgrade. It suits owners of those systems who need a direct replacement or a single-slot capacity increase without configuration changes.

Single-slot 4GB capacity headroom

The stick provides 4GB in a 1Rx8 layout at 1.35V with CL13 timing, filling one of the two available sockets. The platform supports up to 16GB total, so a second identical module can be added later to reach the maximum.

Unbuffered non-ECC build for laptop sockets

The module uses major-brand chips on a standard 204-pin PCB without a heat spreader, keeping the profile low for tight chassis. Its non-ECC unbuffered design matches the laptop's memory controller, and the single-piece kit simplifies installation in either slot.

How it compares

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

Price $17.99
Cheaper than about 92% 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 $4.50 per GB
Cheaper than about 81% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126414900SOSR
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1866 (PC3L 14900)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL13
Memory timings13-13-13
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsDell Inspiron 15 3000 Series
In the box
Included items1 Memory RAM Stick

Questions about this item

Will the 1.35 V DDR3L SODIMM run stably in an older laptop that only supports 1.5 V DDR3?

The module is DDR3L rated at 1.35 V and will operate at that voltage when the system supports DDR3L; if the platform only accepts 1.5 V DDR3 the memory may not be recognised or could run at reduced speed.

How can I verify the CL13 13-13-13 timings are active after installing the 4 GB stick?

Open Task Manager or a tool such as CPU-Z and check the memory tab — it should show 1866 MHz and CAS latency 13 with timings 13-13-13.

Does the single 204-pin stick come alone or are extra brackets or screws included?

The package contains only one 4 GB DDR3L SODIMM stick; no brackets, screws or additional accessories are supplied.

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