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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions 8GB DDR4 2666 CL19 SODIMM D36

SKU CH-960Z-N1JHK

8GB DDR4 2666 SODIMM module for Dell Gaming G7 17 (7790) and Inspiron 14 (5491) 2-in-1 or 15 (5591) 2-in-1 laptops

  • Capacity8GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • Ready for Dell G7 17 7790 and Inspiron 2-in-1s
  • 8 GB DDR4 2666 MHz CL19 runs at 1.2 V
  • Single 260-pin SO-DIMM fits one slot
  • Unbuffered non-ECC design for consumer laptops
  • Major-brand chipset ensures stable operation

Target Laptop Upgrade

This 8GB DDR4 2666 SO-DIMM is built for the Dell Gaming G7 17 7790, Inspiron 14 5491 2-in-1 and Inspiron 15 5591 2-in-1. It suits owners of those models who need a single 260-pin module to fill an empty slot or replace a failed stick. The 1.2V unbuffered design matches the factory specification for these systems.

Single Stick Flexibility

The package contains one 8GB module ranked 1Rx8 with CL19 timing. Adding it to a populated slot increases total capacity up to the platform maximum of 32GB across two sockets. All installed memory will run at the speed of the slowest module or the processor limit, so pairing identical sticks is recommended for best throughput.

Straightforward Slot Installation

Installation requires opening the laptop chassis, locating the SO-DIMM slot and pressing the module in until the clips latch. No heat spreader is fitted, so clearance is rarely an issue. The main risk is mixing speeds or ranks, which forces the whole system to the lowest common denominator and can prevent the expected performance gain.

Highlights

  • Ready for Dell G7 17 7790 and Inspiron 2-in-1s
  • 8 GB DDR4 2666 MHz CL19 runs at 1.2 V
  • Single 260-pin SO-DIMM fits one slot
  • Unbuffered non-ECC design for consumer laptops
  • Major-brand chipset ensures stable operation

Specifications

BrandComputer Memory Solutions
ModelCM1024642666SO
Capacity8GB
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2666 (PC4 21300)
CAS LatencyCL19
Timing19-19-19
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank1Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemDell Gaming G7 17 (7790), Inspiron 14 (5491) 2-in-1, Inspiron 15 (5591) 2-in-1
Package Content1 Memory RAM Stick

Questions about this item

Will the 260-pin DDR4 SODIMM slot in the Dell G7 17 7790 need any servicing after installing this module?

No, the memory module itself has no moving parts and requires no maintenance once seated in the 260-pin slot.

What limits sustained throughput first — the CL19 latency or the DDR4 2666 bus?

The DDR4 2666 bus caps peak bandwidth at 21300 MB/s, so the bus limit appears before the CL19 timing becomes the bottleneck.

How much extra heat does the 1.2 V unbuffered stick add during all-day workloads?

At 1.2 V without a heat spreader, the module runs cool; typical laptop airflow handles the thermal load without audible fan changes.

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