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Two green 204-pin DDR3 SODIMM modules with black chips

Computer Memory Solutions

Computer Memory Solutions CM5126410600SODRH 8GB DDR3 1333 SODIMM

SKU CH-PBH9-YC25V

8GB DDR3 1333 SO-DIMM kit (2×4GB, CL7, 1.5V) validated for Lenovo ThinkPad W520 4270, 4276, 4282, 4284 series

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL7
  • Memory timings7-7-7
  • Rated voltage1.5 V
  • 8 GB capacity expands multitasking headroom on compatible ThinkPad W520 models
  • DDR3-1333 speed with CL7 timing delivers responsive data access
  • 204-pin SO-DIMM form factor fits factory memory slots without adapters
  • 5 V operation matches original system voltage for stable performance
  • Two 4 GB modules enable dual-channel bandwidth on supported configurations

8GB DDR3 kit for ThinkPad W520

This 8GB kit contains two 4GB DDR3 1333 SO-DIMM modules built for Lenovo ThinkPad W520 series laptops including the 4270, 4276, 4282 and 4284 models. It is aimed at owners of those machines who want to reach the platform's supported memory ceiling with matched sticks.

Check your W520 slot count and current layout

The W520 platform can have two or four memory sockets depending on the exact sub-model. Confirm how many slots your unit provides and whether they are already occupied so you know if this two-stick kit will fill the system or leave room for expansion.

Matched pair simplifies dual-channel operation

The two modules are tested together at CL7 7-7-7 timing and 1.5V to run in dual-channel mode on the W520 memory controller. Using a matched kit avoids the timing mismatches that can occur when mixing individual sticks from different production batches.

How it compares

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

Price $38.99
Cheaper than about 81% 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 $4.87 per GB
Cheaper than about 78% 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 W520 4270, 4276, 4282, 4284 Series
In the box
Included items2 Memory RAM Sticks

Questions about this item

Does the kit include both 4 GB modules or must the second stick be purchased separately?

The package contains two 4 GB SODIMM sticks, giving 8 GB total with no additional modules required.

Should I choose this 8 GB kit or a larger capacity for a ThinkPad W520 4270?

The W520 4270 supports up to 8 GB across its two slots, so this 2 x 4 GB kit matches the maximum memory the model can address.

What does the 1333 MHz rating mean once the memory is installed in the W520?

The modules run at DDR3-1333 (PC3-10600) with CL7 timing at 1.5 V, delivering the rated speed without overclocking in compatible W520 systems.

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