Lenovo ThinkStation P910, Руководство по техническому обслуживанию аппаратной части

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• Be significantly different from your previous passwords
Setting, changing, and deleting a password
To set, change, or delete a password, do the following:
1. Start the Setup Utility program. See “Starting the Setup Utility program” on page 65.
2. Select Security .
3. Depending on the password type, select Set Power-On Password , Set Administrator Password , or
Hard Disk Password and press Enter.
4. Follow the instructions on the right side of the screen to set, change, or delete a password.
Note: A password can be any combination of up to 64 alphabetic and numeric characters. For more
information, see “Password considerations” on page 68.
5. To save settings and exit the Setup Utility program, press F10, select Yes in the window displayed,
and press Enter.
Note: For some keyboards, you might need to press Fn+F10 to exit the Setup Utility program.
Erasing lost or forgotten passwords (clearing CMOS)
This section provides instructions on how to erase lost or forgotten passwords, such as a user password.
To erase a lost or forgotten password, do the following:
1. Remove any media from the drives and turn off all connected devices and the computer. Then,
disconnect all power cords from electrical outlets and disconnect all cables that are connected to the
computer.
2. Remove the computer cover. See Chapter 9 “Installing or replacing hardware” on page 101.
3. Locate the Clear Complementary Metal Oxide Semiconductor (CMOS)/Recovery jumper on the system
board. See “Parts on the system board” on page 35.
4. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and
pin 3).
5. Reinstall the computer cover and connect the power cord. See Chapter 9 “Installing or replacing
hardware” on page 101.
6. Turn on the computer and leave it on for approximately 10 seconds. Then, turn off the computer by
holding the power button for approximately five seconds.
7. Repeat step 1 and step 2.
8. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).
9. Reinstall the computer cover and connect the power cord.
Selecting a startup device
If your computer does not start up from a device as expected, you can choose to change the startup device
sequence permanently or select a temporary startup device.
Changing the startup device sequence permanently
To change the startup device sequence permanently, do the following:
1. Depending on the type of the storage device, do one of the following:
• If the storage device is internal, go to step 2.
• If the storage device is a disc, ensure that your computer is turned on. Then, insert the disc into
the optical drive.
Chapter 6
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Advanced configuration
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