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

Computer Memory Solutions

Computer Memory Solutions CM4096642666SO 64GB (2x32GB) DDR4 2666MHz CL19 SODIMM memory upgrade

SKU CH-AXV2-SJPFG

64 GB kit of two 32 GB DDR4 2666 MHz SODIMM modules for Lenovo ThinkPad P1

  • Total capacity64 GB (2 × 32 GB)
  • Rated speedDDR4 2666 (PC4 21300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL19
  • Memory timings19-19-19
  • Rated voltage1.2 V
  • 64 GB total capacity from two 32 GB modules
  • 2666 MHz DDR4 speed rated at PC4 21300
  • CL19 CAS latency with 19-19-19 timing
  • 2 V low-voltage unbuffered non-ECC operation
  • Validated for Lenovo ThinkPad P1 and X1 Extreme

Capacity and Compatibility

This kit provides 64GB of DDR4 memory in two 32GB SODIMM modules. It is built specifically for the Lenovo ThinkPad P1 and ThinkPad X1 Extreme, which support a maximum of 64GB across two slots.

Upgrade Path

The kit replaces the factory-installed memory to reach the platform ceiling of 64GB. The jump is worthwhile when workloads such as virtual machines, large datasets or heavy multitasking exceed the original capacity.

Installation Notes

Installation requires opening the laptop chassis to access the two SODIMM slots. The 260-pin modules insert at an angle and lock into place. The main risk is ordering this kit for a different model, as the guaranteed compatibility applies only to the systems named above.

How it compares

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

Price $325.99
Typical for this category: the median of 21,161 items is $397.99.
Total capacity 64 GB (2 × 32 GB)
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $5.09 per GB
Cheaper than about 75% 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 nameCM4096642666SO
Total capacity64 GB (2 × 32 GB)
Product type260-Pin DDR4 SO-DIMM
Performance
Rated speedDDR4 2666 (PC4 21300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL19
Memory timings19-19-19
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsLenovo ThinkPad P1
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will the 260-pin DDR4 SO-DIMM modules fit the two slots in a Lenovo ThinkPad P1?

Yes, the kit is built as 260-pin DDR4 SO-DIMM and the compatible-system list names the ThinkPad P1 with two sockets supporting up to 64 GB.

What is the correct way to seat each 32 GB stick so the laptop recognises the full 64 GB?

Insert each module at an angle until the gold contacts disappear, then press down firmly until both side clips click; the common mistake is stopping at the first click instead of the second.

If a stick fails years later, what replacement does the manufacturer offer?

Computer Memory Solutions provides a limited lifetime exchange or repair against manufacturing defects when purchased directly from them.

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