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Green circuit board SODIMM memory module with black chips 204 pins

Computer Memory Solutions

Computer Memory Solutions 8GB DDR3 1333MHz SODIMM for Lenovo ThinkPad W520 4270 4276 4282 4284 memory upgrade

SKU CH-5Z6T-C6332

8GB DDR3 1333MHz SODIMM module upgrades Lenovo ThinkPad W520 series laptops

  • Total capacity8 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • 8GB capacity extends multitasking headroom on ThinkPad W520
  • DDR3 1333MHz speed matches factory memory specification
  • 204-pin SO-DIMM form factor fits the two SODIMM slots
  • CL9 9-9-9 timing keeps latency low for responsive performance
  • 5V unbuffered non-ECC design ensures drop-in compatibility

System-specific DDR3 SODIMM for ThinkPad W520

This 8 GB module is built for Lenovo ThinkPad W520 models 4270, 4276, 4282 and 4284. It uses a 204-pin DDR3 SO-DIMM form factor running at 1333 MHz with CL9 timings and 1.5 V operation. The stick is unbuffered, non-ECC and organised as 2Rx8 using major-brand chips.

Check your ThinkPad W520 slot count

The W520 series provides two SODIMM sockets with a maximum supported capacity of 16 GB. Verify how many slots are already populated and whether the existing modules are DDR3 1333 MHz non-ECC unbuffered types. Matching speed, voltage and rank organisation helps avoid boot issues or down-clocking.

Ideal for W520 owners adding

This single 8 GB stick suits users upgrading one slot or replacing a failed module in the listed ThinkPad models. Buyers needing a matched pair for dual-channel performance or a total capacity above 16 GB should look at a two-module kit or a different platform.

How it compares

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

Price $21.99
Cheaper than about 89% 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 $2.75 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM10246410600SODRH
Total capacity8 GB
Product type204-Pin DDR3 SO-DIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL9
Memory timings9-9-9
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 items1 Memory RAM Stick

Questions about this item

Does the package include anything besides the single 8 GB DDR3 1333 MHz SODIMM stick?

No. The box contains only one 204-pin unbuffered non-ECC module rated at 1.5 V with CL9 timing. No tools, adapters or extra sticks are supplied.

My ThinkPad W520 has two SODIMM slots and supports 16 GB maximum. Should I buy one 8 GB module or two?

For 16 GB total you need two 8 GB modules. One module gives 8 GB; adding a second fills the second slot and reaches the 16 GB limit.

The module is rated PC3-10600 1333 MHz CL9. Will it actually run at that speed once installed?

Yes. The W520 memory controller supports DDR3 1333 MHz, so the stick operates at its rated 1333 MHz with 9-9-9 timings at 1.5 V.

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