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Two green DDR3L SODIMM modules side by side

Computer Memory Solutions

Computer Memory Solutions CM5126412800SOSRL 8GB (2x4GB) DDR3L 1600 CL11 SODIMM memory upgrade

SKU CH-2PV8-5T6CK

8GB dual-channel DDR3L kit runs at 1600 MHz with CL11 timing and 1.35 V for Lenovo ThinkPad Edge E531

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3L 1600 (PC3L 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.35 V
  • 8 GB total capacity from two 4 GB modules
  • DDR3L 1600 MHz speed rated at PC3L 12800
  • Low 1.35 V voltage reduces power draw
  • CL11 latency with 11-11-11 timing for responsive operation
  • Guaranteed compatible with Lenovo ThinkPad Edge E531

Targeted upgrade kit

This 8 GB kit contains two 4 GB DDR3L SODIMM modules built for the Lenovo ThinkPad Edge E531 notebook. Each stick runs at 1600 MHz with CL11 timing and operates at the low 1.35 V voltage. The unbuffered, non-ECC design matches the factory specification for the listed machine.

Ideal for E531 owners

It suits anyone restoring the original 8 GB maximum on an Edge E531 (models 6885-xxx or 6887-xxx) that still uses both SODIMM slots. Builders working on any other laptop, desktop, or server platform will not be able to use this memory.

204-pin DDR3L SODIMM interface

The modules use the 204-pin DDR3L SO-DIMM form factor required by the ThinkPad Edge E531. A system that demands a different pin count, voltage, or memory generation cannot accept these sticks.

How it compares

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

Price $77.99
Cheaper than about 71% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $9.75 per GB
Typical for this category: the median of 20,941 items is $8.19 per GB.

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800SOSRL
Total capacity8 GB (2 × 4 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 systemsLenovo Thinkpad Edge E531 Notebook
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will this 1.35 V DDR3L kit run reliably next to the original 1.5 V DDR3 modules already in my ThinkPad Edge E531?

Yes, the DDR3L sticks operate at 1.35 V and are backward-compatible with the 1.5 V slots in the E531, so they work alongside existing memory without voltage conflict.

How can I confirm the two 4 GB modules are running at 1600 MHz CL11 after installation?

Open Task Manager or a tool such as CPU-Z; the memory tab should show 1600 MHz speed and 11-11-11 timings for each 204-pin SODIMM.

Does the package include only the two RAM sticks or are any tools or adapters supplied?

The box contains two 4 GB 204-pin DDR3L SODIMM modules and nothing else; no screwdrivers, brackets or adapters are included.

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