Acer ASPIRE 4253, Service Manual, Page: 75 / 226

System Utilities
2-19
Removing BIOS Passwords
0
(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
(Software method) If wrong supervisor password is entered three times, the message
System will halt!
is displayed on screen.
Figure 2-19. Supervisor Password Error
Table 2-5. CMOS Jumper
Item Description
1 Clear CMOS Jumper
1