Acer Aspire 1420P Series Service Manual

Also see for Aspire 1820PT Series: Buyer's guide Quick guide Buyer's guide

Contents

Acer Aspire 1420P Series Service Manual Manual pdf 177 page image

Chapter 5 167Clearing Password Check and BIOS RecoveryThis section provides a procedure for clearing the password and BIOS. The Hardware Open Gap on the mainboard clears the CMOS of all user settings and restores factory defaults.Mainboard CMOS DischargeDischarging 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.