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

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR3 10600 1333MHz NON ECC SODIMM Lenovo Thinkpad Edge memory upgrade

SKU CH-PR46-RNN1V

8GB kit of two 4GB DDR3 1333 MHz SODIMM modules for compatible Lenovo ThinkPad Edge laptops

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8GB dual-channel kit boosts multitasking on ThinkPad Edge
  • DDR3 1333 MHz CL7 timing delivers responsive system performance
  • 204-pin SODIMM form factor fits Edge E120 E125 E325 E420 E420S E520
  • 5 V unbuffered non-ECC modules install without configuration
  • Major-brand chipset ensures reliable operation across supported models

Lenovo ThinkPad Edge DDR3 SODIMM kit

This 8 GB kit supplies two 4 GB DDR3 SO-DIMMs rated at 1333 MHz with CL7 timing for the listed ThinkPad Edge models. It targets owners of E120, E125, E325, E420, E420S or E520 notebooks who need a matched pair to fill both slots. The modules are unbuffered, non-ECC and use a standard 204-pin layout.

Low-voltage unbuffered DDR3 operation

Each module runs at 1.5 V without a heat spreader, so power draw and heat output stay minimal inside the slim chassis. The CL7 7-7-7 timings keep latency low at the rated frequency. No active cooling is required and the sticks add no audible noise to the system.

Matched pair for dual-channel benefit

The two sticks are sold as a tested kit, allowing the memory controller to run in dual-channel mode where the platform supports it. Package contents are exactly the two SO-DIMMs; no tools, cables or software discs are included. Computer Memory Solutions provides a limited lifetime warranty when purchased directly from them.

How it compares

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

Price $39.99
Cheaper than about 80% 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 $5.00 per GB
Cheaper than about 77% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126410600SODRH
Total capacity8 GB (2 × 4 GB)
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL7
Memory timings7-7-7
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo Thinkpad Edge E120, E125, E325, E420, E420S E520
In the box
Included items2 Memory RAM Sticks

Questions about this item

How do I install these two 4 GB SODIMM modules in a ThinkPad Edge E420?

Power off the laptop, remove the battery, unscrew the bottom memory cover, release the retaining clips, insert each module at an angle until the contacts are hidden, then press down until the clips lock.

Will these 1.5 V DDR3 1333 MHz sticks need any firmware updates or cleaning over time?

No firmware updates are required; the modules are passive components. Occasional dust removal from the slot with compressed air is the only maintenance.

What is the first limitation I will hit when running sustained workloads on this CL7 2Rx8 kit?

The 8 GB total capacity and 1333 MHz bandwidth are the primary limits; the modules have no heat spreader, so prolonged heavy use may cause thermal throttling.

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