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Green circuit board with black memory chips gold edge connector no heat spreader

Computer Memory Solutions

Computer Memory Solutions CM512642400SO 4GB DDR4 2400MHz SODIMM

SKU CH-BMMV-FHS82

4GB DDR4 2400MHz SODIMM module for Lenovo ThinkPad T460s, T470s and T480s

  • Total capacity4 GB
  • Rated speedDDR4 2400 (PC4 19200)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL17
  • Memory timings17-17-17
  • Rated voltage1.2 V
  • 4 GB DDR4 SODIMM adds responsive capacity for ThinkPad T460s, T470s, T480s
  • 2400 MHz PC4-19200 speed keeps everyday workloads moving smoothly
  • CL17 timing at 1.2 V delivers efficient low-power operation
  • 260-pin unbuffered non-ECC design fits the factory slot without modification
  • Single 4 GB module from Computer Memory Solutions validated for Lenovo part numbers 20F9xxx, 20FAxxx, 20HFxxx, 20HGxxx, 20JSxxx, 20JTxxx.

System-specific upgrade

This 4GB DDR4 SO-DIMM is built for Lenovo ThinkPad T460s, T470s and T480s notebooks. It installs in the single 260-pin slot to add capacity without opening a second channel.

Sustained workload behaviour

Running at 2400 MHz with CL17 timing and 1.2 V, the module maintains stable throughput during long compile or multitasking sessions. Unbuffered, non-ECC operation keeps latency predictable for typical office workloads.

Upgrade context

It replaces the factory-fitted stick when the original capacity limits multitasking. The jump is worth it when the system shows frequent paging, but it does not help buyers who need more than the platform's maximum supported memory.

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 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $5.25 per GB
Cheaper than about 73% 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 nameCM512642400SO
Total capacity4 GB
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2400 (PC4 19200)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL17
Memory timings17-17-17
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo Thinkpad T460s, T470s, T480s
In the box
Included items1Memory Ram Stick

Questions about this item

Does the 1.2V DDR4 2400 module add noticeable heat or fan noise during all-day use in a ThinkPad T480s?

The module runs at the standard 1.2V DDR4 voltage with no heat spreader, so it adds minimal thermal load and no audible noise in the T480s.

Must the ThinkPad T460s have an empty 260-pin SODIMM slot to install this 4GB stick?

Yes, the upgrade requires one free 260-pin DDR4 SO-DIMM socket; the T460s supports a maximum of 24GB in a single slot.

Will the CL17 timing work alongside the original DDR4 2400 module in a T470s?

Both modules run at DDR4 2400 with matching voltage, so the CL17 stick will operate in step with the factory memory.

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