Acer EM-7T HM50/70 KB.I1700.421 Manuale Utente

Codici prodotto
KB.I1700.421
Pagina di 182
142
Chapter 5
Clearing Password Check and BIOS Recovery
This section provides you with the standard operating procedures of clearing password and BIOS recovery for 
Aspire 5517. The machine provides one Hardware Open Gap on main board for clearing password check, and 
one Hotkey for enabling BIOS Recovery.
Clearing Password Check
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 J1 jumper.
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).
Clear CMOS Jumper
Item
Description
Location
J1
Clear CMOS Jumper
Thermal Module Bay, under Modem Board