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Two green circuit boards with black memory chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions 32GB (2 x 16GB) DDR4 2400MHz CL17 SODIMM memory upgrade

SKU CH-YSV0-V1CHK

DDR4 2400 MHz SODIMM kit with two 16 GB modules for HP ProBook 640 G3, 640 G4, 645 G4, 650 G3 and 650 G4

  • Total capacity32 GB (2 × 16 GB)
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 32GB total capacity for demanding multitasking and large workloads
  • DDR4 2400MHz speed with CL17 latency for responsive system performance
  • Two 16GB modules enable dual-channel operation on supported laptops
  • Non-ECC unbuffered SODIMM designed for HP ProBook 640 and 650 series
  • Low 1.2V voltage reduces power draw and heat in mobile systems

32GB DDR4 SODIMM kit for HP ProBook

This 32GB kit contains two 16GB DDR4 2400MHz SODIMM modules built for HP ProBook 640 G3, 640 G4, 645 G4, 650 G3 and 650 G4 notebooks. The modules run at 1.2V with CL17 timing and use unbuffered, non-ECC 260-pin chips. It is aimed at owners of those specific models who need the maximum factory-supported memory.

Two matched modules enable dual-channel operation

The pair is tested together so both sticks operate at the same 2400MHz speed and 17-17-17 timings. Using a matched kit avoids the instability that can appear when mixing separate modules of different rank or latency. No heat spreaders are fitted, keeping the profile low enough for tight ProBook chassis.

Fills both slots for 32GB total capacity

The ProBook models listed support a maximum of 32GB across two sockets, so this kit occupies every available slot. It suits heavy multitasking, large spreadsheets and virtual machines that benefit from the full 32GB. Systems limited to 16GB or a single socket cannot use the full kit.

How it compares

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

Price $173.99
Cheaper than about 60% of the 21,161 comparable items (median $397.99).
Total capacity 32 GB (2 × 16 GB)
Typical for this category: the median of 20,941 items is 32 GB.
Price per GB $5.44 per GB
Cheaper than about 71% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM2048642400SO
Total capacity32 GB (2 × 16 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 ProBook 640 G3, 640 G4, 645 G4, 650 G3, 650 G4
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 2Rx8 DDR4 SODIMM chips need replacement after years of daily use?

The kit uses standard unbuffered DDR4 modules rated for 1.2 V operation with no moving parts, so no scheduled replacement is required under normal conditions.

What limit appears first when both 16 GB sticks run at DDR4 2400 continuously?

The platform caps memory speed at DDR4 2400 with CL17 timing, so bandwidth is fixed regardless of load duration.

How much heat and power do the two 1.2 V modules generate during all-day workloads?

Each stick runs at the standard DDR4 1.2 V without a heat spreader, producing minimal heat and drawing only the power needed for CL17 operation.

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