Wireless LAN Monitor
Gigabyte supplies a program module called Wireless LAN Monitor. You need it to configure the wireless card and it features many options, such as the creation of connection profiles (interesting if you switch wireless networks), authentication setup via WEP encryption, etc.
Alternatively, once you install the driver the WLAN module can also be configured without Gigabyte's WLAN Monitor.
The first page shows the type of connection as well as the signal strength.