Acer Aspire 4739 Acer Aspire 4339 4739 4739Z Notebook Series Service Guide - Page 75

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. 1 2 Figure 2-18. CMOS Jumper Table 2-5. CMOS Jumper Item 1 Clear CMOS Jumper 2 Clear CMOS Jumper Description (Software method) If wrong Supervisor Password is entered three times, the message System will halt! is displayed on screen.(Figure 2-19) Figure 2-19. Supervisor Password Error System Utilities 2-19