Clearing Password Check And Bios Recovery; Clearing The Bios Passwords - Acer Aspire S3-391 Service Manual

Clearing Password Check and BIOS Recovery

This section provides procedures for:


Clearing the BIOS passwords

 Performing a BIOS recovery
Clearing the BIOS Passwords
To clear a lost BIOS password (user or supervisor password), you need to short the clear
password hardware gap (G2201) located on the mainboard.
Figure 5-3. G2201 Hardware Gap
1. Shut down the computer and disconnect the AC adapter and all other peripherals from the
computer.
2. Perform the
3. Use an electrical conductivity tool to short the two contacts on the hardware gap together.
4. Connect the DC-In cable to the mainboard.
5. While resting the tool on the two contacts, plug one end of the AC adapter into the DC-in
jack and plug one end to an electrical outlet.
6. Press the
7. After the BIOS POST, remove the tool from the hardware gap.
8. Perform the
9. Perform the
10. Perform the
11. Turn on the computer and press F2 during bootup to access the Setup Utility. If no
password prompt appears, the BIOS passwords have been cleared. If the prompt
appears, repeat steps 4-10 until the BIOS passwords have been cleared.
12. Press F9 to load the system defaults.
13. Press F10 to save the changes you made and close the Setup Utility.
Jumper and Connector Locations
"Removing the Middle Cover
button to turn on the computer.
"Replacing the Thermal
"Replacing the Battery
"Replacing the Lower
Assembly" procedure described on page 3-39.
Module" procedure described on page 3-53.
Pack" procedure described on page 3-73.
Case" procedure described on page 3-76.
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