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Selecting a startup device
If the computer does not start up (boot) from a device such as the CD-ROM,
diskette, or hard disk as expected, use one of the following procedures to select a
startup device.
Selecting a temporary startup device
Use this procedure to startup from any boot device.
Note: Not all CDs, hard disks, and diskettes are startable (bootable).
1. If your computer is already on when you start this procedure, shut down the
2. To open the Startup Device Menu, repeatedly press the F12 key as you turn on
Note: Selecting a startup device from this list does not permanently change the
Changing the 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
2. Select Startup.
3. Select Startup Sequence. See the information displayed on the right side of the
4. Select the devices for the Primary Startup Sequence, the Automatic Startup
5. Select Exit from the Setup Utility menu and then Save Settings or Save and
If you have changed these settings and want to return to the default settings, select
Load Default Settings on the Exit menu.
Advanced settings
On some computer models the Advanced settings menu includes a setting to
Enable/Disable HyperThreading. This feature works only with
HyperThreading-aware operating systems such as Microsoft
default setting for HyperThreading is Enabled. However, if you select Set Defaults
and are using an operating system other than Windows XP, the computer
performance might be degraded. Therefore, you should always set
HyperThreading to Disabled unless you are sure your operating system supports
HyperThreading.
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Hardware Maintenance Manual
operating system and turn off the computer.
the computer.
startup sequence; it is valid for one boot cycle only.
page 53).
screen.
Sequence, and the Error Startup Sequence.
exit the Setup Utility.
®
®
Windows
XP. The
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