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Green circuit board with black memory chips and gold edge connectors

Computer Memory Solutions

Computer Memory Solutions CM10246412800SODRL 8GB DDR3L 1600MHz SODIMM for Lenovo ThinkPad T431s memory upgrade

SKU CH-CSKA-V3T20

An 8 GB DDR3L SODIMM rated at 1600 MHz with CL11 timing for upgrading a Lenovo ThinkPad T431s

  • Total capacity8 GB
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • 8 GB capacity doubles available memory for Lenovo ThinkPad T431s
  • DDR3L 1600 MHz speed matches system bus for stable performance
  • 35 V low voltage reduces power draw and heat output
  • CL11 11-11-11 timings deliver responsive multitasking
  • 204-pin SODIMM form factor fits the single memory slot directly

8 GB DDR3L SODIMM for ThinkPad T431s

This 8 GB DDR3L module is built for the Lenovo ThinkPad T431s ultrabook. It delivers a straightforward capacity increase for owners of that specific machine who need more memory for everyday workloads. The stick is validated for the platform, so it installs without compatibility guesswork. Buyers with other laptop models or desktop systems cannot use this module.

204-pin unbuffered design runs at 1.35 V

The SO-DIMM uses a standard 204-pin edge connector and operates at the low 1.35 V DDR3L voltage. No heat spreader is fitted, keeping the profile thin enough for the ultrabook’s tight slot clearance. CL11 11-11-11 timings and 2Rx8 organisation are handled automatically by the system BIOS. There is no ECC or registered buffering, so the module suits consumer-grade memory controllers only.

Replaces the factory 4 GB stick to reach 8 GB total

The T431s ships with a single soldered 4 GB module and one removable slot; this kit fills that slot to bring the system to its 8 GB practical ceiling. The upgrade is worthwhile when multitasking or browser-heavy workflows exceed the original capacity. Users who require the platform maximum of 12 GB cannot achieve it with this single 8 GB stick alone.

How it compares

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

Price $19.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $2.50 per GB
Cheaper than about 92% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM10246412800SODRL
Total capacity8 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 rank2Rx8
Heat spreaderNo
Power
Rated voltage1.35 V
Compatibility
Compatible systemsLenovo ThinkPad T431s Ultrabook
In the box
Included items1 Memory RAM Stick

Questions about this item

What DDR3L speed and voltage does this CM10246412800SODRL module run at?

This module is rated for DDR3L 1600 (PC3L 12800) at 1.35 V with CL11 11-11-11 timings, so the memory bus will operate at 1600 MT/s within the ThinkPad T431s.

Will the 204-pin SODIMM fit the single memory slot in a ThinkPad T431s?

Yes — the T431s has one SODIMM socket and this stick uses the standard 204-pin DDR3 SO-DIMM form factor with no heat spreader, so it seats correctly in the ultrabook's slot.

What is the correct way to seat this SODIMM in the T431s so it is fully locked?

Align the notch on the module with the key in the socket, insert the stick straight in until the gold contacts are fully hidden, then press down evenly until both side clips snap into the notches on the PCB.

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