User manual LENOVO G485

[. . . ] Lenovo G480/G485/ G580/G585/G780 User Guide V1. 0 Read the safety notices and important tips in the included manuals before using your computer. Note · Before using the product, be sure to read Lenovo Safety and General Information Guide first. · Some instructions in this guide may assume that you are using Windows® 7. If you are using other Windows operating system, some operations may be slightly different. If you are using other operating systems, some operations may not apply to you. [. . . ] · You need to pair the Bluetooth enabled device with your computer before you can transfer data between them. Read the documentation supplied with the Bluetooth enabled device for details on how to pair the device with your computer. 25 Chapter 2. Learning the basics Special keys and buttons ------------------------------------------------------------------- 1 OneKey Rescue system button a · When the computer is powered-off, press this button to start the OneKey Rescue system if Lenovo OneKey Rescue system has been preinstalled. · In Windows operating system, press this button to start Lenovo OneKey Recovery. Note: For details, see "OneKey Rescue system" on page 33. 26 Chapter 2. Learning the basics System status indicators -------------------------------------------------------------------These indicators inform you of the computer status. G480/G485/G580/G585 3 4 1 G780 1 2 3 4 5 6 27 Chapter 2. Learning the basics a Caps lock indicator b Num lock indicator c Power status indicator d Battery status indicator e Wireless communication indicator f Hard disk drive indicator 28 Chapter 2. Learning the basics Securing your computer --------------------------------------------------------------------This section provides information about how to help protect your computer from theft and unauthorized use. Attaching a security lock (not supplied) You can attach a security lock to your computer to help prevent it from being removed without your permission. For details on installing the security lock, please refer to the instructions shipped with the security lock that you have purchased. Refer to the "Left-side view" on page 5 for the location of the Kensington slot. Note: · Before purchasing any security product, verify that it is compatible with this type of security keyhole. · You are responsible for evaluating, selecting, and implementing the locking devices and security features. Lenovo offers no comment judgement or warranty regarding the function, quality or performance of locking devices and security features. Using VeriFaceTM (on select models) VeriFace is a face recognition software which takes a digital snapshot, extracts key features of your face, and creates a digital map that becomes the system's "password". If you want to activate VeriFace for the first time, click the VeriFace icon on the desktop to register your facial image. Note: · The face registration and verification works best in an environment with steady and even light. · You can determine whether to use this function when you log on the system. For more details on VeriFace, see the software help. 29 Chapter 2. Learning the basics Using passwords Using passwords helps prevent your computer from being used by others. Once you set a password and enable it, a prompt appears on the screen each time you power on the computer. The computer cannot be used unless you enter the correct password. Note: This password can be from one to seven alphanumeric characters in any combination. For details about how to set the password, see the Help to the right of the screen in the BIOS setup utility. Note: To enter BIOS setup utility, press F2 when the Lenovo logo appears on the screen while the computer is starting up. About NVIDIA® OptimusTM (on select models) ----------------------Optimus is a GPU switching mechanism which automatically switches the active GPU to perform image-rendering tasks. If no graphics-intensive programs are running, the integrated GPU will be selected as the active GPU to preserve battery life; if you start high-definition movie playback or a 3D game, the image-rendering task is automatically switched by Optimus to the discrete GPU to produce high graphics performance. When Optimus is enabled, switching between integrated and discrete GPUs is performed automatically without user intervention. 30 Chapter 3. Connecting to the Internet As a global network, the Internet connects computers worldwide, providing services such as e-mailing, information searching, electronic commerce, Web browsing and entertainment. You can connect the computer to the Internet in the following ways: Wired connection: use physical wiring to connect. Wireless network technology: connect without wiring. Wired connection ----------------------------------------------------------------------------Wired connections are a reliable and safe way to connect the computer to the Internet. Cable DSL Cable Internet services use a cable modem connected to the residential cable TV line. DSL is a family of related technologies that bring highspeed network access to homes and small businesses over ordinary telephone lines. Hardware connection: Cable TV cable DSL Telephone line Splitter * Cable modem * * DSL modem * Splitter * * * * Not supplied. * Note: The above diagrams are for reference only. [. . . ] Connect the AC adapter and the cables to the computer again. Note: If only one DDR3 SDRAM is used on the computer you are servicing, the card must be installed in SLOT-0 ( : lower slot), but not in SLOT-1 ( : upper slot). b a To make sure that the DDR3 SDRAM is installed correctly, do as follows: 1 Turn the computer on. The System Memory item shows the total amount of memory installed in your computer. 47 Appendix A. CRU instructions Replacing the wireless LAN card --------------------------------------To replace the wireless LAN card, do the following: 1 Turn off the computer; then disconnect the AC adapter and all cables from the computer. 2 Close the computer display, and then turn the computer over. [. . . ]