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Green 204-pin DDR3 SODIMM memory module, 8GB

Computer Memory Solutions

Computer Memory Solutions CM10246410600SODRH 8GB DDR3 1333 SODIMM Lenovo ThinkPad T520i 4239

SKU CH-R903-E8SF0

An 8 GB DDR3 1333 MHz SODIMM module built for the Lenovo ThinkPad T520i 4239 series

  • Total capacity8 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL9
  • Memory timings9-9-9
  • Rated voltage1.5 V
  • 8 GB capacity doubles the ThinkPad T520i 4239-xxx memory to the 16 GB maximum
  • DDR3 1333 MHz speed matches the PC3-10600 system spec for stable operation
  • 204-pin SODIMM form factor fits the laptop's two memory slots without adapters
  • CL9 9-9-9 timing at 1.5 V delivers low-latency unbuffered performance
  • 2Rx8 rank with major-brand chipset ensures tested compatibility for the T520i platform

Compatible upgrade for Lenovo ThinkPad T520i 4239

This 8 GB DDR3 SO-DIMM is built to match the factory specifications of the Lenovo ThinkPad T520i 4239-xxx. It arrives as a single 204-pin module rated at PC3-10600 1333 MHz with CL9 timing and 1.5 V operation. The unbuffered, non-ECC design drops straight into one of the two available slots without configuration changes.

Steady throughput under sustained workloads

The module uses major-brand chips in a 2Rx8 organisation to maintain consistent bandwidth during long compile jobs, heavy browser sessions or virtual-machine paging. Rated CL9 9-9-9 latency and standard voltage keep error rates low when the system runs warm for hours. No heat spreader is fitted, so airflow from the notebook’s existing cooler passes directly over the DRAM.

Capacity ceiling decides fit

The platform supports a maximum of 16 GB across two sockets, so this 8 GB stick fills half the total headroom. Buyers who want more storage than 16 GB or need ECC protection for data-critical workloads cannot use this part.

How it compares

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

Price $20.99
Cheaper than about 90% 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 $2.62 per GB
Cheaper than about 91% of the 20,941 comparable items (median $8.19 per GB).

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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 T520I 4239-Xxx
In the box
Included items1 Memory RAM Stick

Questions about this item

How much heat does the 1.5V DDR3 1333 module produce when running continuously?

Standard 1.5V DDR3 SO-DIMMs generate modest heat; this unbuffered 2Rx8 stick has no heat spreader, so airflow in the ThinkPad T520i chassis handles cooling.

Does my ThinkPad T520i 4239 need a specific BIOS version or second slot free to use this 8GB SODIMM?

The T520i 4239 has two 204-pin slots supporting up to 16GB total; this single 8GB module works in either slot with no special BIOS requirement.

Will this PC3-10600 CL9 stick run stably alongside an existing 4GB DDR3 1333 module already in my T520i?

Yes — both run at DDR3 1333; the system will operate in dual-channel mode at the slower module's timings if they differ.

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