Lenovo Y471A 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.

Performing dust cleaning

Dust tends to accumulate around the heat sink of the computer’s CPU over time, reducing the dissipation capability of the heat sink. You can reduce the amount of accumulated dust by performing dust cleaning. To perform dust cleaning, repeatedly press the thermal management

button until is highlighted. Dust cleaning will start after three seconds.

When dust cleaning is activated, the heat dissipation fan spins at high and low speed alternatively to allow dust to be discharged. A complete dust cleaning process takes several minutes to complete. You can cancel the process at any time by switching the computer to standard, super silent or efficient thermal dissipation mode.

Upon completion, the computer returns to the previous mode when dust cleaning was activated.

Note: We recommend you perform dust cleaning at least once a month to reduce the amount of dust accumulation around the heat sink. Place your computer in a clean environment with good ventilation when performing dust cleaning.

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Contents IdeaPad Y471A Regulatory Notice First Edition May Copyright Lenovo Contents Page Getting to know your computer Top viewIndicators Volume buttons Wireless modulePower button Getting to know your computerMicrophone jack RJ-45 portUSB port Headphone jackUSB combo port Optical drive AC power adapterJack Kensington slot System status Battery pack Battery latch manual Bottom viewLearning the basics „ Connecting to the power„ Configuring the operating system „ Reading the manualsPutting your computer into sleep state Learning the basicsShutting down your computer „ Removing the battery pack „ Checking battery status„ Charging the battery „ Handling the batteryUsing the touchpad Touchpad button„ Numeric keypad „ Function key combinationsLearning the basics Inserting a memory card „ Using memory cards not suppliedRemoving a memory card „ Connecting USB devices „ Connecting a Bluetooth device Enabling Bluetooth communications on your computerMute/Unmute Volume down Volume up „ Volume buttons b- d„ OneKey Rescue system button a Intelligent mode Normal modeMovie mode „ OneKey Theater button eEfficient thermal dissipation mode Standard modeSuper silent mode Performing dust cleaningF g Page „ Using passwords „ Using VeriFace„ Attaching a security lock not supplied AMD Muxless ATI Switchable Graphics Technology PowerXpress Switchable Graphics in two modes on select models Switching between Mode 1 and Mode„ Hardware connection Connecting to the Internet„ Software configuration CableEnabling wireless connection „ Using Wi-Fi/WiMAXConnecting to the Internet Software configurationOneKey Rescue system „ Introduction„ Creating a recovery discs OneKey Rescue systemTroubleshooting Frequently asked questionsTroubleshooting When do I need to restore the system to the factory status?Password problem Display problemsKeyboard problems Computer screen problems Troubleshooting Sleep or hibernation problemsSound problems Startup problem Troubleshooting Battery problemsHard disk drive problem OneKey Rescue system problemsTroubleshooting Other problems Appendix. CRU instructions Appendix. CRU instructions Handling a hard disk driveAppendix. CRU instructions Appendix. CRU instructions Appendix. CRU instructions Sdram Appendix. CRU instructions Appendix. CRU instructions Removing the optical drive Trademarks Page New World. New Thinking.TM
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