Acer Aspire One D255 Series, Руководство по обслуживанию

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Chapter 5 149
Clearing Password Check and BIOS Recovery
This section provide you the standard operating procedures of clearing password and BIOS recovery for the
computer. There is one Hardware Open Gap on the mainboard for clearing password check, and one Hotkey
for enabling BIOS Recovery.
Clearing Password Check
Hardware Open Gap Description is as follows:
Steps for Clearing BIOS Password Check
If users set BIOS Password (Supervisor Password and/or User Password) for a security reason, BIOS will ask
the password during systems POST or when systems enter to BIOS Setup menu. However, once it is
necessary to bypass the password check, users need to short the HW Gap to clear the password by the
following steps:
1. Power Off the system, and remove HDD, AC and Battery from the machine.
2. Disconnect the RTC Battery cable and locate the CMOS jumper in the DIMM bay.
3. Use an electric conductivity tool to short the two points of the HW Gap.
4. Plug in AC, keep the short condition on the HW Gap, and press Power Button to power on the system till BIOS
POST finish. Then remove the tool from the HW Gap.
5. Restart system. Press F2 key to enter BIOS Setup menu.
6. If there is no Password request, BIOS Password is cleared. Otherwise, please follow the steps and try again.
NOTE: These steps are only for clearing BIOS Password (Supervisor Password and User Password).
Item Description Location
CMOS Clear CMOS Jumper Located near DIMM
Module