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Green circuit board with black memory chips and gold edge connector

Computer Memory Solutions

Computer Memory Solutions CM2048642400SO 16GB DDR4 2400 SODIMM for HP EliteBook 820 G4 830 G6 840 G4 G5 G6

SKU CH-GZFD-Z7RV1

A 16 GB DDR4 SODIMM running at 2400 MHz with CL17 timing, validated for HP EliteBook 820 G4, 830 G6 and 840 G4 G5 G6

  • Total capacity16 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 16 GB DDR4 2400 MHz expands multitasking headroom
  • CL17 latency keeps everyday workloads responsive
  • 2 V operation reduces laptop power draw
  • 260-pin SODIMM fits EliteBook 820 G4 830 G6 840 G4 G5 G6
  • Single 16 GB module leaves one slot free for 32 GB max

16 GB DDR4 SODIMM for HP EliteBook

This 16 GB DDR4 2400 MHz module uses a 260-pin SO-DIMM form factor and runs at 1.20 V with CL17 timing. It is built as a 2Rx8 unbuffered non-ECC stick using major brand chipsets. The part targets owners of HP EliteBook 820 G4, 830 G6, 840 G4, G5 and G6 laptops who need a single-slot capacity increase.

Single stick enables flexible upgrades

The package contains one memory stick so you can populate a free slot or replace an existing module without buying a pair. Mixing brands is possible but the system will run all memory at the speed of the slowest installed module or the processor limit. A 64-bit operating system is required to address more than 4 GB of total memory.

Check slot count and maximum capacity

These EliteBook models provide two SODIMM sockets and support up to 32 GB total. Verify how many slots are free and whether the current module matches the 2400 MHz specification to avoid down-clocking. The stick has no heat spreader, so ensure the laptop chassis clearance accepts a standard-height module.

How it compares

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

Price $87.99
Cheaper than about 69% of the 21,161 comparable items (median $397.99).
Total capacity 16 GB
Lower than about 70% of the 20,941 comparable items (median 32 GB).
Price per GB $5.50 per GB
Cheaper than about 70% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048642400SO
Total capacity16 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsHP/Compaq EliteBook 820 G4, 830 G6, 840 G4, 840 G5, 840 G6
In the box
Included items1 Memory RAM Stick

Questions about this item

Will the 2Rx8 rank layout require any firmware or BIOS changes later?

The module runs at standard 1.20 V with CL17 timing and is unbuffered non-ECC; no firmware or BIOS changes are needed for the listed EliteBook models.

What limits sustained throughput first — the 2400 MT/s bus or the CL17 latency?

The DDR4-2400 bus caps peak bandwidth at PC4-19200, while CL17-17-17 latency governs response time; the bus ceiling is reached before latency becomes the bottleneck.

Does the lack of a heat spreader raise temperatures or fan noise during all-day workloads?

At 1.20 V the stick stays within JEDEC thermal limits, so the laptop’s existing cooling handles continuous use without extra fan activity.

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