Lenovo 4272, 4271 Viewing or changing the startup device sequence, Advanced settings, User Guide

2.Repeatedly press and release the F12 key when turning on the computer. When the Startup Device Menu opens, release the F12 key.

3.Select the desired startup device on the Startup Device Menu and press Enter to begin.

Note: Selecting a startup device on the Startup Device Menu does not permanently change the startup device sequence.

Viewing or changing the startup device sequence

This section provides instructions on how to view or permanently change the configured startup device sequence.

To view or permanently change the configured startup device sequence, do the following:

1.Start the Setup Utility program. See “Starting the Setup Utility program” on page 53.

2.Select Startup → Startup Sequence. Read the information displayed on the right side of the screen.

3.Select the startup devices for the Primary Startup Sequence, the Automatic Startup Sequence, and the Error Startup Sequence.

4.Press Esc to return to the Setup Utility program main menu. You might have to press Esc several times.

5.Press F10 to save the new settings and exit the Setup Utility program.

Notes:

a.If you do not want to save the new settings, select Exit → Exit the Setup Utility without saving.

b.If you want to return to the default settings, press F9 or select Exit → Load Default Settings.

Advanced settings

On some computer models, the Advanced menu includes a setting to enable or disable HyperThreading. This feature works only with HyperThreading-aware operating systems, such as the Windows 7 operating system. The default setting for HyperThreading is enabled. However, if you are not using a HyperThreading-aware operating system and you select Enabled for HyperThreading, your computer performance might be degraded. Therefore, you should always set HyperThreading to Disabled unless you are sure your operating system supports HyperThreading.

Exiting the Setup Utility program

After you finish viewing or changing settings, press Esc to return to the Setup Utility program main menu. You might have to press Esc several times. Then, you can do one of the following:

vIf you want to save the new settings and exit the Setup Utility program, press F10. Otherwise, your changes will not be saved.

vIf you do not want to save the new settings, select Exit → Exit the Setup Utility without saving.

vIf you want to return to the default settings, press F9 or select Exit → Load Default Settings.

56User Guide