Lenovo ThinkStation P520, User Manual, Page: 49 / 174

• Press the power button.
• Enable the Wake Up on Alarm feature to make your computer wake up at a set time. See “Enabling or
disabling the automatic power-on of your computer” on page 36.
• Enable the After Power Loss feature to make your computer wake up when the power supply resumes
after a sudden loss of electricity.
To enable the After Power Loss feature, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 35.
2. Select Power ➙ After Power Loss and press Enter.
3. Select Power On and press Enter.
4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard
settings). Then, select Yes in the window displayed, and press Enter.
Enabling or disabling the configuration change detection
With the configuration-change detection enabled, if the POST detects configuration changes of some
hardware devices (such as storage drives or memory modules), an error message is displayed.
To enable or disable the configuration change detection, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 35.
2. Select Security ➙ Configuration Change Detection and press Enter.
3. Select the desired setting and press Enter.
4. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard
settings). Then, select Yes in the window displayed, and press Enter.
To bypass the error message and log in to the operating system, do one of the following:
• Press F2 or Fn+F2 (depending on the keyboard settings).
• Start and then exit the Setup Utility program. See “Starting the Setup Utility program” on page 35 and
“Exiting the Setup Utility program” on page 40.
Changing the BIOS settings before installing a new operating system
BIOS settings vary by operating system. Change the BIOS settings before installing a new operating system.
To change the BIOS settings, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 35.
2. From the main interface, select Exit ➙ OS Optimized Defaults and press Enter.
3. Depending on the operating system to be installed, do one of the following:
• To install the Windows 10 (64-bit) operating system, select Enabled and press Enter.
• To install an operating system other than Windows 10 (64-bit), select Disabled and press Enter.
4. Select Yes in the window displayed and press Enter to confirm your selection.
5. To save settings and exit the Setup Utility program, press F10 or Fn+F10 (depending on the keyboard
settings). Then, select Yes in the window displayed, and press Enter.
Using BIOS passwords
By using the Setup Utility program, you can set passwords to prevent unauthorized access to your computer
and data.
Chapter 5
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Advanced configuration
37