Removing Bios Passwords - Acer Aspire 4339 Service Manual

Removing BIOS Passwords

(Hardware method) To clear User or Supervisor passwords, remove lower cover and use a
metal instrument to short the CMOS jumper.
Figure 2-18. CMOS Jumper
Table 2-5. CMOS Jumper
Item
1
2
(Software method) If wrong Supervisor Password is entered three times, the message
System will halt! is displayed on
Figure 2-19. Supervisor Password Error
System Utilities
Clear CMOS Jumper
Clear CMOS Jumper
screen.(Figure
0
1
2
Description
2-19)
2-19