Lenovo IdeaPad Y510 - Manual (Page 43)

Chapter 3. Troubleshooting
38
„ Other Problems
Your computer does not respond.
ƒ 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.
ƒ 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 startup sequence 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.