All thinkpads have a Wifi card whitelist at the BIOS level that prevent installing certain WiFi cards. The restriction can be bypassed with a BIOS modification: Either installing Libreboot, Coreboot or editing the official Lenovo/IBM BIOS.
In general, this machine works well. It seems impossible to change the wireless card and the builtin wireless card isn't really reliable. It is unclear if it is a firmware problem or just the design of the wireless card, but signal is often weak and the "bars" always look full even if the signal is weak. See also http://www.thinkwiki.org/wiki/Category:X120eSchede 3G | 33 |
Acquisition cards | 34 |
Bluetooth | 56 |
Schede ethernet | 169 |
Lettori di impronte digitali | 11 |
Host Controller | 170 |
Modems | 18 |
Notebook | 785 |
Printers | 125 |
Adattatori RAID | 20 |
Scanner | 24 |
Lettori di schede SD | 56 |
Schede audio | 140 |
Schede video | 341 |
Webcam | 132 |
Schede wifi | 228 |
TOTAL | 2342 |