Lenovo Z470, Z370, Z570 manual Enabling Nvidia Optimus on select models, Using passwords

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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. Enter your password at the prompt. 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 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.

Enabling NVIDIA® Optimus™ (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.

Check the GPU indicator: if the indicator is off, slide and release the GPU switch to enable Optimus.

When Optimus is enabled, switching between integrated and discrete GPUs is performed automatically without user intervention. However, you can customize settings through the NVIDIA control panel to make the desired GPU active to perform image-rendering tasks for certain programs. For details, search for Optimus in the help system of the NVIDIA control panel.

Notes:

•Optimus is not supported by all operating systems. Currently, Optimus is supported by Windows® 7. If you are using another operating system, such as Windows® XP, it may not be able possible to enable Optimus.

•Optimus is not supported by all media players and video compression standards.

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Contents IdeaPad Z370/Z470/ Z570 Regulatory Notice First Edition December Copyright Lenovo Contents Page Z370/Z470 Getting to know your computerTop view „ Z570 Getting to know your computerGetting to know your computer Integrated Camera Wireless module antennas Computer displaySpeakers Power button OneKey Rescue system button Thermal management button„ Z370/Z470 Left-side viewESATA/USB Getting to know your computer Combo port USB portRight-side view „ Z370 „ Z470 „ Z570Optical drive Getting to know your computer USB port Front view „ Z370 Bottom viewC d Battery pack Learning the basics „ Connecting to the power„ Configuring the operating system „ Reading the manualsPutting your computer into sleep state „ Shutting down your computerLearning the basics „ Checking battery status „ Charging the battery„ Removing the battery pack „ Handling the batteryUsing the touchpad „ Numeric keypad Z370/Z470 Using the keyboardZ570 „ Function key combinations Learning the basics Inserting a memory card „ Using memory cards not suppliedRemoving a memory card „ Connecting USB devices „ Connecting Bluetooth enabled devices on select models Enabling Bluetooth communications on your computer„ OneKey Rescue system button a „ Volume buttons b~dSpecial keys and buttons „ OneKey Theater button e Efficient thermal dissipation mode Standard modeSuper silent mode „ Thermal management button fPerforming dust cleaning System status indicators Page „ Attaching a security lock not supplied „ Using VeriFaceSecuring your computer „ Using passwords Enabling Nvidia Optimus on select modelsConnecting to the Internet Wired connectionConnecting to the Internet „ Software configuration„ Hardware connection Wireless connection Wi-Fi WiMAXSoftware configuration Hardware connection„ Introduction OneKey Rescue systemOneKey Rescue system „ Creating a recovery discs OneKey Rescue systemOneKey Rescue system Troubleshooting Frequently asked questionsWhere can I find warranty information? Troubleshooting Display problemsKeyboard problems Troubleshooting Password problemsSleep or hibernation problems Computer screen problems Puter does not workHard disk drive problem Troubleshooting Sound problemsBattery problems Startup problemTroubleshooting Other problems RespondReplacing the battery pack Appendix A. CRU instructionsAppendix A. CRU instructions Replacing the hard disk drive Handling a hard disk driveZ370 Appendix A. CRU instructions Appendix A. CRU instructions Z470/Z570 Z570 Pull the tab in the direction shown by arrow d Take out the hard disk drive secured in a metal frame e Appendix A. CRU instructions Replacing memory Appendix A. CRU instructions Appendix A. CRU instructions Removing the optical drive Setup Poster User Guide Trademarks Page New World. New Thinking.TM