Stay connected
Compatibility tips and upgrade deals, straight to your inbox. No spam.
Your system
6 guaranteed-fit options
This option is out of stock.
Specifications reported for the Lenovo ThinkPad R51 1840.
Good to know
Free tools from Seifelden — no purchase needed.
Checks the drivers on your Lenovo ThinkPad R51 1840, installs the safe updates Windows offers, guides the rest to the official download — and confirms exactly which of the upgrades above your machine has room for.