Lenovo ThinkPad X201s Memory Upgrades ✓­ Guaranteed Compatible

Learn more about Lenovo ThinkPad X201s memory

What Lenovo ThinkPad X201s DIMM type is supported?

SODIMM

Why are there various DIMM types supported?

Factory configured X201s systems often have smaller, less expensive modules. As more memory is required different density and technologies are needed. DIMM type mixing is never recommended.

What Lenovo ThinkPad X201s memory speed is supported?

DDR3-1066 and DDR3-1333

Why may there be various speeds of Lenovo ThinkPad X201s memory?

Some servers often have various configurations and versions. If you are unsure what you need, please refer to your X201s manual or data sheet. If you need tech support, please contact us.

General DIMM population guideline for Lenovo ThinkPad X201s upgrade to consider.

Some may or may not apply.

• If mixing memory speeds, all 2 DIMMs run at the lowest DDR3-1066 bus frequency.
• Install DIMMs starting furthest from the processor.
• Do not install DIMMs if the corresponding processor is not installed.
• If only one processor is installed in a two CPU system, only half of the DIMM slots are available.
• To maximize performance, balance the total memory capacity between all installed processors.
• It is not required, but it is recommended to load the channels similarly if possible.

Why are there so many Lenovo ThinkPad X201s upgrade options?

IT buyers come from all walks of life. Some purchase by OEM part number. Some purchase by original module part number. Our goal is to give you confidence when purchasing Lenovo ThinkPad X201s upgrades. All modules listed are qualified to work in your Lenovo ThinkPad X201s.