American Megatrends Megathon, User Manual

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Chapter 4 Deleting a Password 43
4 Deleting a Password
If you forget the passwords you set up through AMIBIOS Setup, the only way
you can restart the computer is to erase the system configuration information
where the passwords are stored. System configuration data is stored in CMOS
RAM, a type of memory that consumes very little power.
Erase Old Password You can drain CMOS RAM power via J3 on the motherboard. J3 is a 3-pin
berg that has pins 1 and 2 jumpered for normal operation. Perform the following
steps to erase the old password.
Important
Make sure you are properly grounded before
performing the following procedure. You must be
certain that no electrostatic discharge (ESD) occurs.
ESD can ruin your motherboard. Wear an antistatic
wristband attached to a ground. See “Avoid Static
Electricity” on the following page.
Step Action
1 Turn the computer power off and remove the computer cover.
2 Place a shorting bridge on J3 (2-3) CLEAR CMOS option.
3 Turn on computer power for about 10 seconds.
4 Turn the computer off again.
5 Remove the shorting bridge from J3 and put on J3 (1-2) for
NORMAL operation.
6 Turn on computer power again.
Since you drained power from CMOS RAM, all system
configuration information has been erased. You must now re-
enter the system configuration information by running
AMIBIOS Setup.