Lenovo Y400 Series manual Troubleshooting, Computer does nothing when you press Power button

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Lenovo Notebook Computer User Guide

your computer and disks and avoid magnetic detectors (including the arch‐like machine and handheld detectors in the hands of safety investigators).

zIf you travel with your computer abroad, get to know the power cord standard in the destination country before you go.

4.1.6Do not change the factory hardware specification without authorization

zDo not change the computer’s factory hardware specification, including removing original hardware or adding new hardware, without authority from Lenovo licensed agencies.

zLenovo has no warranty on the usability or reliability of any devices or software that are not provided by Lenovo or its affiliates.

4.2 Troubleshooting

4.2.1The computer does nothing when you press the

power button.

Do as follows:

zSee if the AC adapter and its power cord are well connected to the computer and power outlet.

zCheck the battery’s power status (some batteries are equipped with a power self‐checking button). See if the battery interface is damaged or if the power cord plug is damaged.

zUse the battery and AC power to power the computer respectively. Turn the computer on to see if the power indicator

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Contents Welcome Quick tour for your computer LED Indicator Power jack Security keyholeFan louvers LAN port, Modem jackLAN port USB ports Modem jackHigh current of a digital line might damage the Modem Hidden Touchpad status LED indicator Hidden Touchpad Enable/Disable LED indicatorIeee 1394 port 7 SD/MS/MMC card port15 HDD/ODD LED indicator SubwooferNUM Lock Caps LockBattery Wireless & Bluetooth Enable/Disable buttonPower switch Mute buttonNovo button Audio volume status LED indicator ShuttleBuilt‐in microphone Interaction under Windows operating systemHidden Touchpad Touchpad button27 S‐Video port Optical media driveMicrophone‐in jack Headphone‐out jackSystem and power status indicators Power‐on statusBattery status Wireless/Bluetooth statusMonitor connector Build‐in stereo speakersBack view Battery Release latch Hard disk/wireless card cover Battery Lock/Unlock latchMemory module cover Turn on/off the power ∙ Releasing battery packCPU fan cover Open/close the LCD display panelStarting up for the first time Using battery pack Activating the batteryTurn off the computer Click Start ‐ Turn Off Computer‐ Turn OffUsing battery Battery initialization Checking the battery status Lenovo Notebook Computer User Guide Using the LCD display Using keyboardUsing numeric keypad Keyboard shortcutsShortcut Function Fn + SysRq/ScrLk Fn + Ins/PauseFn + Del/Break Fn + → ←Using the Touchpad Touchpad indicatorTouchpad utilities Click Drag and DropUsing optical media driver Tray‐in driverSlot‐in driver Setup and maintain the computer Power managementPower management under Windows XP Acpi Mode Standby modeTurn off the monitor or hard disk Hibernation mode Set up low power protection Using multimedia audio system Setting display resolution Connecting IEEE1394 deviceConnecting to external display device Using PC cardsUsing card reader Installing drivers Installing Chipset driverInstalling Graphic Card driver Installing Sound Card driver Installing Bluetooth driverInstalling Modem driver Installing EnergyCut driverInstalling LAN Card driver Installing Wireless LAN Card driver optionalInstalling Touchpad driver Installing Card Reader driverBroadcom PCI‐E Wireless LAN Card driver Bios setup Installing Easy Button driverAccessing the Bios Setup program Menu barMain menu ProgramAdvanced menu System timeSystem date Other informationQuiet Boot Power on DisplayLegacy USB Support Set Supervisor Password Set User PasswordSecurity menu Boot menu Set HDD PasswordPassword on Boot Boot priority order menu Excluded from boot order menu Exit menuExit Saving Changes Load Setup Defaults Hardware configuration and component standard 2GB Memory by two sets of 1GB Sodimm Hard Disk Drive HDD Optical Disk Drive ODDAudio DisplayWeight and size PowerKeyboard ExpansionLenovo Notebook Computer User Guide Take care of using the computer Kind reminderCleaning your computer Environmental requirementsAbout the battery For outdoor usingTroubleshooting Computer does nothing when you press Power buttonYou can turn on the computer but can not start System Printer can not be installed and printed You can not dial‐up with the computer Computer reports error or halts when running some programs Battery service time is too shortService support system Warranty service telephone numbersLCD is black Keep the guide well for future use