Usually the BIOS wont have any settings for your wireless card, it is usually all handled through the drivers within the OS. what are you trying to do?
Basically switching the wireless on my laptop requires me to press the function key + F2, but the keyboard I'm using now doesn't have the function key. Somebody on another forum had the same problem and the solution was: F2 while turning the laptop on, and then switching it on through there. Only my options screen at that point is slightly different from the one in the thread ie has no tab for wireless, Bluetooth, and so on.
Long story short: I'm trying to switch the wifi on without the correct keys.