Just got my X220 (i7, 4gb, 300hdd) a few days ago; and I notice a beep noise after hitting a certain combination of keys. The beep occurs every time I hit a 3-key combination consisting of any key + the key above + the key to the left.
For example the beep occurs, when I write "fre" or "vfd" or "loi".
But it also occurs when typing "ouh" or "oun" or "oum". The weird thing is: it only beeps when I type the 3 letters quickly. If I type slowly, no beep noise is made.
After the beep, nothing else happens. I can continue writing and no error message or anything else comes up.
It is a normal with ThinkPads, you can turn off Keyboard Beeps in the BIOS menu.
Press F1 at the ThinkPad POST screen.
Highlight Config using the arrow keys, and press Enter.
Highlight Alarms using the arrow keys, and press Enter.
Highlight Keyboard Beep , and press F5 to change the value to [Disabled] .