Lenovo B450 User Manual page 55

The computer does not
start from the desired
device.
The connected external
device does not work.
• See the Boot menu of BIOS Setup Utility. Make sure
that Boot priority order in 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
BIOS Setup Utility, make sure that the device is
included in the Boot priority order list.
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 a high power consumption external
devices such as an external USB optical disk drive,
use external device power adapter. Otherwise, the
device may not be recognized, or system shut down
may result.
Chapter 5. Troubleshooting
41