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

Computer Memory Solutions

Computer Memory Solutions CM10246412800SODRL 16GB (2x8GB) DDR3L 1600MHz CL11 1.35V SODIMM memory upgrade

SKU CH-1X42-GZ339

16 GB dual-channel DDR3L 1600 kit built for Panasonic Toughbook 31 Mk5 CF-31

  • Capacity16GB (2 x 8GB)
  • Type204-Pin DDR3 SO-DIMM
  • SpeedDDR3L 1600 (PC3L 12800)
  • CAS LatencyCL11
  • Timing11-11-11
  • Voltage1.35V
  • Guaranteed compatibility with Panasonic Toughbook 31 Mk5 CF-31
  • 16GB total capacity in a 2x8GB dual-channel kit
  • DDR3L 1600MHz speed with CL11 latency timing
  • Low 1.35V voltage reduces power draw and heat
  • Unbuffered non-ECC SODIMM using major brand chipset

Kit purpose and target system

This 16 GB kit contains two 8 GB DDR3L SO-DIMM modules built for the Panasonic Toughbook 31 Mk5 CF-31. It upgrades that laptop to its maximum supported memory of 16 GB using both available sockets. The modules run at 1600 MHz with CL11 timing at 1.35 V.

Build fit and slot usage

Each stick uses the 204-pin SO-DIMM form factor and is unbuffered, non-ECC, dual-rank 2Rx8. The pair fills both expansion slots, leaving no room for further memory additions. A 64-bit operating system is required to address the full capacity.

Capacity headroom and limits

The 16 GB total matches the system ceiling, so multitasking and larger workloads run without paging to disk. With a 32-bit OS the usable amount drops to roughly 3.5 GB, wasting most of the kit. Buyers needing more than 16 GB must choose a different platform.

Highlights

  • Guaranteed compatibility with Panasonic Toughbook 31 Mk5 CF-31
  • 16GB total capacity in a 2x8GB dual-channel kit
  • DDR3L 1600MHz speed with CL11 latency timing
  • Low 1.35V voltage reduces power draw and heat
  • Unbuffered non-ECC SODIMM using major brand chipset

Specifications

BrandComputer Memory Solutions
ModelCM10246412800SODRL
Capacity16GB (2 x 8GB)
Type204-Pin DDR3 SO-DIMM
SpeedDDR3L 1600 (PC3L 12800)
CAS LatencyCL11
Timing11-11-11
Voltage1.35V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
ChipsetMajor Brand Chipset
Heat SpreaderNo
Compatible SystemPanasonic Toughbook 31 Mk5 Cf-31
Package Content2 Memory RAM Sticks

Questions about this item

Will the 1600 MHz speed and CL11 latency hold steady during long workloads?

The modules run at DDR3L 1600 with CL11 timing and 1.35 V, so the rated speed and latency are maintained under sustained use.

How much heat or fan noise should I expect from these sticks in a Toughbook running all day?

No heat spreader is fitted; the 1.35 V DDR3L design keeps power draw low, so extra heat or fan noise inside the CF-31 is minimal.

Does my Panasonic Toughbook 31 Mk5 CF-31 need a 64-bit OS to use the full 16 GB kit?

Yes, maximum configurations require a 64-bit operating system; a 32-bit OS may limit recognised memory to 3.5 GB or less.

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