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

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3L 1600 SODIMM for EliteBook 840 G1

SKU CH-PZB8-P4APT

4 GB DDR3L 1600 SODIMM module for HP EliteBook 840 G1, CL11 timing at 1.35 V

  • Total capacity4 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • 4GB DDR3L 1600MHz SODIMM upgrades EliteBook 840 G1 memory
  • 35V low-voltage DDR3L reduces power draw in compatible notebooks
  • CL11 11-11-11 timings deliver responsive 1600MHz DDR3 performance
  • 204-pin unbuffered non-ECC design fits EliteBook 840 G1 slots
  • Single 4GB module enables flexible dual-channel configuration up to 16GB

System-specific SODIMM for EliteBook 840 G1

This 4 GB DDR3L module is built for the HP EliteBook 840 G1 and matches the factory specifications for that platform. It suits owners who need a single stick to fill one of the two slots or to replace a failed unit. Buyers who want more than 16 GB total capacity or who use a different notebook model should look elsewhere.

Straightforward slot installation

The 204-pin SO-DIMM fits the notebook's memory slots without tools or configuration changes. Because the module is unbuffered and non-ECC it follows the standard laptop memory path; the only common issue is seating the stick fully until the retention clips click. The package contains one memory stick and no additional hardware.

Steady operation at 1.35 V

Rated at DDR3L 1600 with CL11 11-11-11 timings, the module runs at the low 1.35 V voltage specified for the EliteBook 840 G1. This voltage keeps power draw and heat consistent during extended workloads, and the major-brand chipset maintains stability without a heat spreader. Sustained use stays within the platform's thermal envelope.

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 nameCM5126412800SOSRL
Total capacity4 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3L 1600 (PC3L 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsHp/Compaq Elitebook 840 G1
In the box
Included items1 Memory RAM Stick

Questions about this item

How can I confirm the module is running at 1600 MHz after installing it in my EliteBook 840 G1?

Open Task Manager or a tool like CPU-Z and check the memory tab; it should show 1600 MHz and CL11 timing for the CMS stick.

What comes in the box and is anything else required for the upgrade?

The package contains one 4 GB 204-pin DDR3L SODIMM; no extra parts are needed — just a small screwdriver to open the memory bay.

Should I choose the 4 GB single stick or the 8 GB two-stick kit for my EliteBook 840 G1?

The 4 GB stick adds one module to the two available slots; the 8 GB kit fills both slots for the maximum 16 GB dual-channel configuration.

More in Model-Specific Memory Upgrades

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