User manual LENOVO IDEAPAD N581

[. . . ] Lenovo IdeaPad P580/P585/N580/ N581/N585/N586 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. [. . . ] Learning the basics Connecting a universal serial bus (USB) device Your computer comes with 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. Otherwise, the device may not be recognized, and system shut down may result. Connecting a Bluetooth device (on select models) If your computer has an integrated Bluetooth adapter card, it can connect to and transfer data wirelessly to other Bluetooth enabled devices, such as notebook computers, PDAs and cell phones. You can transfer data between these devices without cables and up to 10 meters range in open space. Note: The actual maximum range may vary due to interference and transmission barriers. To get the best possible connection speed, place the device as near your computer as possible. Enabling Bluetooth communications on your computer Press Fn + F5 to make configuration. Note: · When you do not need to use the Bluetooth function, turn it off to save battery power. · 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. 18 Chapter 2. Learning the basics Special keys and buttons ------------------------------------------------------------------- N580 P580 1 1 2 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 26. 19 Chapter 2. Learning the basics Volume buttons b Mute button: Mute/Unmute the sound. Volume Down button: Quick decrease volume level. Volume Up button: Quick increase volume level. 20 Chapter 2. Learning the basics System status indicators -------------------------------------------------------------------These indicators inform you of the computer status. 1 2 3 a Power status indicator b Battery status indicator c Caps lock indicator 21 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. 22 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. Using Switchable Graphics (specific models only) -------------Some IdeaPad models support Switchable Graphics. The system will automatically choose and switch over to the integrated or dedicated GPU according to the current loading. 23 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. [. . . ] CRU instructions Replacing memory -------------------------------------------------------------------------You can increase the amount of memory in your computer by installing a double-data-rate three synchronous dynamic random access memory (DDR3 SDRAM)-available as an option-in the memory slot of your computer. DDR3 SDRAMs are available in various capacities. Note: · Use only the memory types supported by your computer. If you incorrectly install optional memory, or install an unsupported memory type, a warning beep will sound when you try to start the computer. However, the procedure for replacing the memory is the same as listed below. To install a DDR3 SDRAM, do the following: 1 Touch a metal table or a grounded metal object to reduce any static electricity in your body, which could damage the DDR3 SDRAM. [. . . ]