Lenovo S300, S405, S400 manual Troubleshooting Other problems, Respond

Page 40

Chapter 5. Troubleshooting

Other problems

Your computer does not	• To turn off your computer, press and hold the power button
respond.	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 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 Fn + F12 (when HotKey Mode is set to Enabled) or F12 (when HotKey Mode is set to Disabled) 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	• Do not connect or disconnect any external device cables
does not work.	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.

36

Image 40

Contents Lenovo IdeaPad S300/S400/S405 Regulatory Notice First Edition June Copyright Lenovo Contents Page Getting to know your computer Top viewGetting to know your computer Integrated TouchpadLeft-side view Jack Right-side viewUSB 2.0 port Front view Bottom view „ Connecting to the power „ Configuring the operating systemLearning the basics „ Reading the manualsShutting down your computer Putting your computer into sleep stateLearning the basics „ Charging the battery „ Checking battery status„ Removing the battery pack „ Handling the battery Left-click area Using the touchpadRight-click area „ Lenovo Intelligent Touchpad Starting and using Quick NotesApplication Used for Starting Wall Paper Hotkeys „ Setting hotkey mode Inserting a memory card „ Using memory cards not suppliedRemoving a memory card „ Connecting USB devices „ Connecting Bluetooth enabled devices on select models Enabling Bluetooth communications on your computer„ Lenovo Quick Start b „ Novo button aSpecial keys and buttons System status indicators Power status indicator Battery status indicatorLearning the basics Symbol Indicator Meaning Status „ Using passwords „ Using VeriFaceSecuring your computer „ Starting Lenovo Quick Start Using Lenovo Quick Start„ Exiting Lenovo Quick Start Wired connection Connecting to the Internet„ Hardware connection Cable „ Software configuration Connecting to the InternetWireless connection Software configurationHardware connection „ Introduction OneKey Rescue systemOneKey Rescue system „ Creating a recovery discs OneKey Rescue systemInsert additional recordable discs when prompted Troubleshooting Frequently asked questionsTroubleshooting Where can I find warranty information?Troubleshooting Display problemsTroubleshooting Password problems Sleep or hibernation problemsSound problems Troubleshooting Computer screen problemsBattery problems Startup problem Troubleshooting Hard disk drive problemOneKey Rescue system problems Troubleshooting Other problems RespondTrademarks Page New World. New Thinking.TM