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Chapter 5. Troubleshooting
The connected external
device does not work.
• Do not connect or disconnect any external device
cables other than Plug and Play (PnP) device 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.