If your Wii has a drivechip installed, you can try to see if it has a configuration menu built-in. To check, try pressing the 'Eject' button on the console (x3) making sure that there's no disc in the drive when doing so. If you get the GameCube icon in the Disc Channel, then you have likely got a DriveKey chip installed.
Otherwise, then it's some other drivechip installed, of which it can be identified by taking apart the console.