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Two green DDR4 SODIMM sticks, black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 32GB (2x16GB) DDR4 2133MHz SODIMM Elitebook 840 G3 memory upgrade

SKU CH-VRW4-HRSNA

A 32 GB dual-channel DDR4 SO-DIMM kit running at 2133 MHz with CL15 timing for HP EliteBook 840 G3

  • Capacity32GB (2 x 16GB)
  • Type260-Pin DDR4 SO-DIMM
  • SpeedDDR4 2133 (PC4 17000)
  • CAS LatencyCL15
  • Timing15-15-15
  • Voltage1.2V
  • 32 GB total capacity for demanding workloads
  • 2133 MHz DDR4 speed for responsive performance
  • CL15 latency with 1.2 V low-voltage operation
  • 260-pin SODIMM form factor fits EliteBook 840 G3
  • Two 16 GB modules enable dual-channel bandwidth

Elitebook 840 G3 upgrade

This 32GB kit provides the maximum memory the Elitebook 840 G3 can accept across its two SODIMM slots. Two 16GB modules install without configuration changes and are guaranteed compatible with the listed part numbers. Buyers who need more than 32GB total capacity cannot use this platform.

Low voltage unbuffered operation

Modules run at 1.2V with CL15 timings and no heat spreader, drawing minimal power inside the thin chassis. Unbuffered non-ECC design matches the laptop's memory controller and produces no audible noise. Systems that require registered or ECC memory will not work with this kit.

Dual rank 260-pin modules

Each stick uses a 2Rx8 organisation on major-brand chips and fits the standard 260-pin SO-DIMM socket. The pair fills both slots for full dual-channel bandwidth in daily workloads. Builders using a single-slot board or a different pin count cannot install these modules.

Highlights

  • 32 GB total capacity for demanding workloads
  • 2133 MHz DDR4 speed for responsive performance
  • CL15 latency with 1.2 V low-voltage operation
  • 260-pin SODIMM form factor fits EliteBook 840 G3
  • Two 16 GB modules enable dual-channel bandwidth

Specifications

BrandComputer Memory Solutions
ModelCM20486417000SO
Capacity32GB (2 x 16GB)
Type260-Pin DDR4 SO-DIMM
SpeedDDR4 2133 (PC4 17000)
CAS LatencyCL15
Timing15-15-15
Voltage1.2V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemHp/Compaq Elitebook 840 G3
Package Content2 Memory RAM Sticks

Questions about this item

How do I install the 260-pin SODIMM modules in the Elitebook 840 G3, and what step is often missed?

Power off the laptop, remove the battery if accessible, open the memory compartment, insert each module at an angle until the gold contacts are hidden, then press down firmly until both side clips click into place; the step often missed is pressing down hard enough to engage both clips.

What maintenance or replacement will the CM20486417000SO kit need later?

No scheduled maintenance is required; the modules are covered by a limited lifetime warranty against manufacturing defects, so replacement would only occur if a stick fails.

What limit appears first under sustained heavy workloads with these CL15 1.2 V modules?

The DDR4 2133 MT/s bandwidth ceiling is reached before thermal throttling, because the unbuffered SODIMMs have no heat spreader and operate at standard 1.2 V.

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