|If it's a bios password then remove the power cord and open the case and locate the 'clear cmos' jumper. Jumper it to the 'clear' position for a few seconds and put it back in the standby position. Some Asus boards just had a 2-pin clear cmos. In that case there is no 'standby' position. So just jumper the pins for a few seconds and remove the jumper. Other Asus boards had no pins but just 2 solder joints. Sometimes you could use the points of a needle nose pliers and touch the joints to clear it. Or removing the cmos battery for awhle should clear it.|
Then boot up and enter cmos/bios setup and set the date and time and since it's an Asus, you may need to configure the cpu fsb and multiplier.
If the password request is from windows then just hit ESC or click 'cancel' or close the password box and it'll go ahead and boot to windows. Then delete the files in the windows folder with a .pwl extension. That deletes the password info. Then on next bootup you'll get the password box. Click OK and after that it won't ask for a password.