Acer Aspire 5333, Service Manual, Page: 70 / 210

2-18 System Utilities
Removing BIOS Passwords
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To clear User or Supervisor passwords, open the DIMM door and use a metal instrument to
short the RTCRST# point.
Figure 2-18. CMOS Jumper Overview
Software Method
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1. At a DOS prompt, enter clnpwd.exe.
2. Press 1 or 2 to clean the desired password. (Figure 2-19)
Figure 2-19. Clean BIOS Password
3. The on screen message shows function success or failure.
D:\Clnpwd>clnpwd
Acer Clean Password Utility V1.00
Press 1 or 2 to clean any password shown as below
1. User Password
2. Supervisor Password
Clean User Password Successful!