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Chapter 4. Troubleshooting
Other problems
Your computer does not respond. • To turn off your computer, press and hold the Power button for four
seconds or more. If the computer still does not respond, remove the
AC power adapter and the battery pack.
• Your computer might lock when it enters sleep mode during a
communication operation. Disable the sleep timer when you are
working on the network.
The computer does not start from a
device you want.
• See the Boot menu of the BIOS setup utility. Make sure that the Boot
Device Priority in the BIOS setup utility is set so that the computer
starts from the device you want.
• Also make sure that the device from which the computer starts is
enabled. In the Boot menu in the BIOS setup utility, make sure that
the device is included in the Boot Device Priority list.
• While turned off, press the Novo button to select the device you
want the computer to start from.
The connected external device does
not work.
• Do not connect or disconnect any external device cables other than
USB while the computer power is on. Otherwise, you might damage
your computer.
• When using high power consumption external devices such as an
external USB optical disk drive, use an external device power
adapter. Otherwise, the device may not be recognized, or the system
may shut down as a result.