Config menu

67

Date/Time menu

71

Security menu

71

Startup menu

75

Restart menu

77

Updating your system UEFI BIOS

77

Using system management

77

System management

78

Setting management features

78

Chapter 8. Preventing problems . . .

81

General tips for preventing problems

81

Making sure device drivers are current

82

Taking care of your computer

83

Cleaning the cover of your computer . . . .

84

Chapter 9. Troubleshooting computer

 

problems

87

Diagnosing problems

87

Troubleshooting

87

Computer stops responding

87

Spills on the keyboard

88

Error messages

88

Errors without messages

90

Beep errors

91

Memory module problems

91

Networking problems

92

Problems with the keyboard and other pointing

 

devices

94

Problems with the display and multimedia

 

devices

95

Battery and power problems

99

Problems with drives and other storage

 

devices

102

A software problem

103

Problems with ports and connectors . . . .

104

Chapter 10. Getting support . . . .

105

Before you contact Lenovo

105

Getting help and service

105

Using diagnostic programs

106

Lenovo Support Web site

106

Calling Lenovo

106

Finding ThinkPad options

107

Purchasing additional services

107

Appendix A. Regulatory

information . . . . . . . . . . . . . 109

Wireless related information

109

Location of the UltraConnect wireless

 

antennas

110

Locating wireless regulatory notices . . . .

111

Export classification notice

111

Electronic emission notices

111

Federal Communications Commission

 

Declaration of Conformity

111

Industry Canada Class B emission compliance

 

statement

111

European Union - Compliance to the

 

Electromagnetic Compatibility Directive . . .

112

German Class B compliance statement . . .

112

Korea Class B compliance statement . . . .

113

Japan VCCI Class B compliance statement . . 113

Japan compliance statement for products

 

which connect to the power mains with

 

rated current less than or equal to 20 A per

 

phase

113

Lenovo product service information for

 

Taiwan

113

Appendix B. WEEE and recycling statements . . . . . . . . . . . . . 115

Important WEEE information . . . . . . . . . 115

Japan recycling statements . . . . . . . . . 115

Recycling information for Brazil . . . . . . . . 116

Battery recycling information for the European

Union . . . . . . . . . . . . . . . . . . 116

Battery recycling information for Taiwan . . . . . 117

Battery recycling information for the United States

and Canada . . . . . . . . . . . . . . . . 117

Appendix C. ENERGY STAR model information . . . . . . . . . . . . . 119

Appendix D. Notices. . . . . . . . . 121

Trademarks . . . . . . . . . . . . . . . . 122

Appendix E. Restriction of Hazardous Substances Directive (RoHS) . . . . 123

China RoHS. . . . . . . . . . . . . . . . 123 Turkish RoHS . . . . . . . . . . . . . . . 123 Ukraine RoHS . . . . . . . . . . . . . . . 123 India RoHS . . . . . . . . . . . . . . . . 124

iiUser Guide

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Lenovo S230U, 33472YU, 33472GU, 3347XF2 manual Preventing problems