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Lenovo B475e User Guide - Lenovo B475e, B575e - Page 25

Specifications, 100/1000 Mbps Ethernet communication

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Interface • One HDMI port • Two USB 2.0 connectors • One USB 3.0 connector • RJ45 Ethernet connector • HDMI port • External monitor connector • Media card reader slot Optical drive • 12.7 mm Rambo optical drive (on some models) Wireless features • Integrated wireless LAN • Integrated Bluetooth (on some models) • 10/100/1000 Mbps Ethernet communication Specifications This topic lists the physical specifications for your computer. Heat output • 40 W (136 Btu/hr) or 65 W (222 Btu/hr) maximum heat output (depending on the model) Power source (ac power adapter) • Sine-wave input at 50 to 60 Hz • Input rating of the ac power adapter: 100 to 240 V ac, 50 to 60 Hz Battery pack • Lithium-ion (Li-Ion) battery pack Chapter 1. Getting to know your computer 9

Section	Page
Read this first	5
Important safety information	6
Conditions that require immediate action	6
Safety guidelines	7
Chapter 1. Getting to know your computer	17
Top view	17
Left-side view	19
Right-side view	20
Front view	21
Bottom view	22
Status indicators	22
Features	24
Specifications	25
Chapter 2. Using your computer	27
Frequently asked questions	27
Tips on using your computer	28
Reading the manuals	28
Connecting to power	28
Turning on the computer	28
Configuring the operating system	28
Putting the computer into sleep mode or shutting it down	28
Using the ac power adapter and the battery pack	29
Checking the battery status	29
Using the ac power adapter	29
Charging the battery	30
Maximizing the battery life	30
Handling the battery	30
Using the touch pad	31
Using the keyboard	32
Numeric keypad	32
OneKey Recovery Pro program button	33
Function key combinations	33
Connecting to external devices	34
Using the media card reader	34
Using USB connectors	35
Using Bluetooth	35
Chapter 3. Connecting to the network	37
Wired connection	37
Hardware connection	37
Software configuration	38
Wireless connection	38
Hardware connection	38
Software configuration	39
Chapter 4. You and your computer	41
Accessibility and comfort	41
Ergonomic information	41
Chapter 5. Security	43
Attaching a mechanical lock	43
Using passwords	43
Chapter 6. Recovery overview	45
Using OneKey Recovery Pro program on the Windows 7 operating system	45
Solving recovery problems	45
Chapter 7. Replacing devices	47
Static electricity prevention	47
Replacing the battery	47
Replacing the backup battery	48
Replacing the hard disk drive	51
Replacing a memory module	55
Replacing the PCI Express Mini Card for wireless LAN connection	57
Removing the optical drive	61
Chapter 8. Preventing problems	63
General tips for preventing problems	63
Taking care of your computer	64
Chapter 9. Troubleshooting computer problems	67
Troubleshooting	67
Battery and power problems	67
Computer screen problems	68
Problems with drives and other storage devices	69
OneKey Recovery Pro program problems	70
A password problem	70
A sound problem	71
Other problems	71
Appendix A. Regulatory information	73
Wireless related information	73
Export classification notice	74
Electronic emission notices	74
Federal Communications Commission (FCC) Declaration of Conformity	74
Appendix B. WEEE and recycling statements	77
China WEEE statement	77
EU WEEE statements	77
Japan recycling statements	77
Recycling information for Brazil	78
Battery recycling information for the European Union	79
Battery recycling information for the United States and Canada	79
Battery recycling information for Taiwan	79
Appendix C. Notices	81
ENERGY STAR model information	82
Trademarks	82