Removing The Bios Passwords - Acer Aspire S7-391 Service Manual

Removing 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 2-13. G2201 Hardware Gap
1. Shut down the computer and disconnect the AC adapter and all other peripherals from the
computer.
2. Perform the
3. Perform the
4. Perform the
5. Locate the G2201 gap.
6. Use an electrical conductivity tool to short the two contacts on the hardware gap together.
7. 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.
8. Press the
9. After the BIOS POST, remove the tool from the hardware gap.
10. Perform the
11. Perform the
12. Perform the
13. 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 2-13 until the BIOS passwords have been cleared.
14. Press F9 to load the system defaults.
15. Press F10 to save the changes you made and close the Setup Utility.
2-16
"Removing the Lower
"Removing the Battery
"Removing the M-SATA
button to turn on the computer.
"Reinstalling the M-SATA
"Reinstalling the Battery
"Reinstalling the Lower
Case" procedure described on page 3-7.
Pack" procedure described on page 3-8.
Board" procedure described on page 3-15.
Board" procedure described on page 3-60.
Pack" procedure described on page 3-67.
Case" procedure described on page 3-69.
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System Utilities