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Green circuit board DDR3 memory module with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 4GB DDR3 1600 CL11 1.5V 240-pin for Lenovo ThinkCentre M91p/M91 SFF

SKU CH-9CXA-YJKG1

4GB DDR3 1600 CL11 1.5V 240-pin module for Lenovo ThinkCentre M91p and M91 SFF systems

  • Total capacity4 GB
  • Rated speedDDR3 1600 (PC3 12800)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL11
  • Memory timings11-11-11
  • Rated voltage1.5 V
  • 4GB capacity adds responsive multitasking headroom
  • 1600 MHz DDR3 speed keeps data flowing smoothly
  • CL11 latency delivers snappy system response
  • 5 V operation runs cool and efficient
  • 240-pin DIMM fits ThinkCentre M91p/SFF slots

ThinkCentre M91p/M91 SFF DDR3 Upgrade

This 4 GB DDR3-1600 module is built specifically for the Lenovo ThinkCentre M91p and M91 SFF desktops. It installs in a 240-pin DIMM slot and runs at the standard 1.5 V without requiring ECC or registered buffering.

Suits single-slot upgrades, not dual-channel pairs

The stick works alone to raise capacity in a system that has free slots, but the platform demands paired modules for dual-channel mode. Builders who need the full 16 GB maximum across four sockets should look elsewhere unless they can add a matching second module.

4 GB single-rank limit per socket

Each socket accepts a maximum of 4 GB, so this module fills one slot to its ceiling. The platform supports up to 16 GB total with four identical sticks and a 64-bit operating system.

How it compares

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

Price $9.99
Cheaper than about 97% 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 $2.50 per GB
Cheaper than about 92% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM5126412800DIMMHDR
Total capacity4 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1600 (PC3 12800)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL11
Memory timings11-11-11
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsLenovo Thinkcentre M91P / M91 Sff
In the box
Included items1 Memory RAM Stick

Questions about this item

Should I pick the 4 GB module or add a second stick for the full 16 GB the system allows?

The board supports up to 16 GB across four slots with a 4 GB limit per slot, so one module gives 4 GB and a matched pair enables dual-channel operation.

What does the 1600 MHz rating deliver inside a ThinkCentre M91p?

The module runs at DDR3 1600 (PC3 12800) with CL11 timing at 1.5 V, providing the rated bandwidth the platform’s memory controller can use.

Does the 240-pin DDR3 interface limit the speed I actually see?

The 240-pin DDR3 socket caps transfer rates at the module’s 1600 MHz specification; the system will not exceed that frequency.

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