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Green circuit board with black memory chips, thin rectangular stick

Computer Memory Solutions

Computer Memory Solutions CM1024642666SO 8GB DDR4 2666 SO-DIMM memory upgrade

SKU CH-DTA3-KMVB3

8GB DDR4 2666 SO-DIMM module validated for Dell G3 15 3590, G5 15 5590, G5 15 5579 and G7 15 7590 laptops

  • Capacity8GB
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2666 (PC4 21300)
  • CAS LatencyCL19
  • Timing19-19-19
  • Voltage1.2V
  • 8 GB capacity adds responsive multitasking headroom
  • DDR4 2666 speed matches supported Dell Gaming laptops
  • CL19 timing delivers stable operation at 1.2 V
  • 260-pin SO-DIMM fits G3 15 3590, G5 15 5590, G5 15 5579, G7 15 7590
  • Single 8 GB module allows easy future expansion to 32 GB

Targeted Laptop Upgrade

This 8 GB DDR4 SO-DIMM is built for Dell Gaming G3 15 (3590), G5 15 (5590), G5 15 5579 and G7 15 (7590) notebooks. It suits owners who need a single module to add capacity or replace a failed stick in those specific models.

Single-Stick Expansion

The module adds 8 GB to systems that support up to 32 GB across two slots. The jump is worthwhile when the laptop currently runs with less memory or a slower CL19 2666 MHz stick and the user wants matched capacity without buying a pair.

Straightforward Slot Fit

Installation uses the standard 260-pin SO-DIMM socket; the unbuffered 1.2 V design requires no configuration in BIOS. The main risk is mixing speeds — all installed memory will run at the slowest module present.

Highlights

  • 8 GB capacity adds responsive multitasking headroom
  • DDR4 2666 speed matches supported Dell Gaming laptops
  • CL19 timing delivers stable operation at 1.2 V
  • 260-pin SO-DIMM fits G3 15 3590, G5 15 5590, G5 15 5579, G7 15 7590
  • Single 8 GB module allows easy future expansion to 32 GB

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 G3 15 (3590), G5 15 (5590), G5 15 5579, G7 15 (7590)
Package Content1 Memory RAM Stick

Questions about this item

Will the 260-pin DDR4 SO-DIMM fit the memory slots in my Dell G3 15 3590 or G5 15 5590?

Yes, this module uses the standard 260-pin DDR4 SO-DIMM form factor required by those laptops and matches the DDR4 2666 speed they support.

What is the correct way to seat the module so the laptop recognises the full 8 GB?

Insert the stick at roughly a 30-degree angle until the gold contacts disappear, then press down firmly until both side clips click into the notches on the PCB.

When would the CL19 1.2 V unbuffered stick need to be replaced?

Only if a memory test reports errors or the system becomes unstable; otherwise the limited lifetime warranty from Computer Memory Solutions covers manufacturing defects for as long as you own it.

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