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Chapter 5
167
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.
Summary of Contents for Aspire 1420P Series
Page 6: ...vi...
Page 10: ...x Table of Contents...
Page 13: ...Chapter 1 3 System Block Diagram...
Page 32: ...22 Chapter 1...
Page 48: ...38 Chapter 2...
Page 64: ...54 Chapter 3 4 Unlock the FPC 5 Remove the FPC and keyboard...
Page 66: ...56 Chapter 3 4 Remove the hinge cap 5 Remove the hinge bezel...
Page 70: ...60 Chapter 3 10 Pull the upper cover away...
Page 94: ...84 Chapter 3 7 Pry up the bezel top edge and remove...
Page 119: ...Chapter 3 109 7 Insert the stylus...
Page 148: ...138 Chapter 3 2 Replace the HDD in the bay 3 Adhere the black tape 4 Replace the HDD FPC...
Page 202: ...192 Appendix A...
Page 212: ...202...
Page 215: ...205...
Page 216: ...206...