User manual LENOVO G780

[. . . ] Com Read the safety notices and important tips in the included manuals before using your computer. 0_en-US 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. [. . . ] Learning the basics Connecting a universal serial bus (USB) device Your computer comes with three or four USB ports compatible with USB devices. Note: When using a high power consumption USB device such as USB ODD, use the external device’s power adapter. 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 VeriFace™ (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. 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. 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. 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. Wired connection ----------------------------------------------------------------------------Wired connections are a reliable and safe way to connect the computer to the Internet. [. . . ] 2 1 9 After aligning the attachment clips with their matching gaps, reinstall the compartment cover. 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. [. . . ]