Acer Aspire 4820T Series, Руководство по обслуживанию

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Chapter 5 135
Clearing Password Check and BIOS Recovery
This section provide you the standard operating procedures of clearing password and BIOS recovery. Acer
Aspire 480T provides one Hardware Open Gap on the main board 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. Open the Memory Cover of the machine and locate the J1 and J2 jumpers.
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
G1 / G2 Clear CMOS Jumpers WiFi Bay
G2
G1