Lenovo Z575, Z475 manual Thermal management button f, Standard mode, Super silent mode

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Chapter 2. Learning the basics

Thermal management button f

The thermal management button can be used to switch the computer between different work modes and thus control the speed at which the heat dissipation fan spins. You can choose between standard, super silent, or efficient thermal dissipation mode. You can also activate the dust cleaning feature by pressing and releasing the thermal control button.

Standard mode

Standard mode is the factory default mode. It is the recommended work mode for most programs.

Super silent mode

If your computer is not running large programs and you want a silent work environment, switch your computer to super silent mode. To switch to super

silent mode, repeatedly press the thermal management button until is highlighted. The computer will switch to super silent mode after three seconds.

Note: The heat dissipation fan spins at relatively low speeds in super silent mode, and thus dissipates less heat than in other modes. If large programs are running, the system may lower the voltage of the CPU (central processing unit) automatically to decrease the heat produced by the CPU. Consequently, you might experience lower system performance when the computer is running in super silent mode.

Efficient thermal dissipation mode

If large programs are running, switch your computer to efficient thermal dissipation mode to allow more efficient thermal dissipation. To switch to efficient thermal dissipation mode, repeatedly press the thermal

management button until is highlighted.

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Contents IdeaPad Z475/Z575 Regulatory Notice First Edition April Copyright Lenovo Contents Page „ Z475 Getting to know your computerTop view „ Z575 Getting to know your computerCamera Wireless module antennas Computer display Speakers Power button OneKey Rescue system buttonGetting to know your computer Integrated Thermal management buttonLeft-side view Fan louversVGA port RJ-45 portESATA/USB Getting to know your computer Combo port USB portRight-side view „ Z475 „ Z575Optical drive Getting to know your computer RJ-45 port Integrated wireless device switch Memory card slot Front viewBottom view Battery pack „ Connecting to the power „ Configuring the operating systemLearning the basics „ 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 Z475 Using the keyboardZ575 „ Function key combinations Learning the basics Inserting a memory card Connecting external devicesRemoving 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 Standard mode Super silent modeEfficient thermal dissipation mode „ Thermal management button fPerforming dust cleaning System status indicators „ Attaching a security lock not supplied „ Using VeriFaceSecuring your computer „ Using passwords Connecting 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 workTroubleshooting Sound problems Battery problemsHard disk drive problem Startup problemTroubleshooting Other problems RespondReplacing the battery pack Appendix A. CRU instructionsAppendix A. CRU instructions Replacing the hard disk drive Handling a hard disk driveZ475 Z575 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

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