Lenovo G550 Notebook User Manual download pdf (Page 37)

Chapter 5. Troubleshooting

Other problems

Your computer does not respond.

•

To turn off your computer, press and hold the power button for

4 seconds or more. If the computer still does not respond, remove the

AC adapter and the battery.

• 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 priority order 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 priority order list.

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 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.

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Lenovo G550 Notebook User Manual Page 37