Clearing Password Check And Bios Recovery; Mainboard Cmos Discharge - Acer Aspire 1420P Series Service Manual

Clearing Password Check and BIOS Recovery

This section provides a procedure for clearing the password and BIOS. The Hardware Open Gap on the main
board clears the CMOS of all user settings and restores factory defaults.

Mainboard CMOS Discharge

Discharging the CMOS clears all user settings.
1. Disassemble the notebook and take out the Mainboard. See "Removing the Mainboard" on page 69.
2. Remove the RTC battery. See "Removing the RTC Battery" on page 73.
3. Turn the mainboard over, lift up the DIMM protective cover, and short the G3 pad.
4. Reconnect the RTC battery and reassemble the unit.
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