Broadcom Corporation BRCM1048 ユーザーズマニュアル

For more technical support, please visit consumer product website 
http://consumersupport.lenovo.com.

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. 

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.

Press F12 when the Lenovo logo appears on the screen while the 
computer is starting up to select the device you want the computer 
starts 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 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.