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:X120eCartes 3G | 33 |
Acquisition cards | 34 |
Bluetooth | 56 |
Cartes ethernet | 170 |
Lecteurs d'empreintes digitales | 11 |
Contrôleurs Hôte | 170 |
Modems | 18 |
Notebooks | 785 |
Printers | 125 |
Adaptateurs RAID | 20 |
Scanneurs | 24 |
SD card readers | 56 |
Cartes son | 140 |
Cartes graphiques | 341 |
Webcams | 132 |
Cartes wifi | 228 |
TOTAL | 2343 |