Lenovo G770 manual Troubleshooting Password problems, Sleep or hibernation problems

Page 36

Chapter 5. Troubleshooting

Password problems

I forgot my password.

• If you forget your user password, you must take your

 

computer to a Lenovo authorized servicer or a marketing

 

representative to have the password changed.

 

• If you forget your HDD password, a Lenovo authorized

 

servicer cannot reset your password or recover data from

 

the hard disk. You must take your computer to a Lenovo

 

authorized servicer or a marketing representative to have

 

the hard disk drive replaced. Proof of purchase is required,

 

and a fee will be charged for parts and service.

 

• If you forget your supervisor password, a Lenovo

 

authorized servicer cannot reset your password. You must

 

take your computer to a Lenovo authorized servicer or a

 

marketing representative to have the system board

 

replaced. Proof of purchase is required, and a fee will be

 

charged for parts and service.

Sleep or hibernation problems

The critical low-battery error message appears, and the computer immediately turns off.

The computer enters sleep mode immediately after Power- on self-test (POST).

•The battery power is getting low. Connect the AC adapter to the computer, or replace the battery with a fully charged one.

•Make sure that:

-The battery is charged.

-The operating temperature is within the acceptable range. See “Chapter 2. Use and care Information” of Lenovo Safety and General Information Guide.

Note:If the battery is charged and the temperature is within range, have the computer serviced.

The computer does not return

• If the computer does not return from sleep mode, it may

from sleep mode and the com-

have entered hibernation mode automatically because the

puter does not work.

battery is depleted. Check the power indicator.

 

• If your computer is in sleep mode, connect the AC adapter

 

to the computer, then press any key or the power button.

 

• If your computer is in hibernation mode or power-off state,

 

connect the AC adapter to the computer, then press the

 

power button to resume operation.

Note: If the system still does not return from sleep mode, your system has stopped responding, and you cannot turn off the computer; reset the computer. Unsaved data may be lost. To reset the computer, press and hold the power button for 4 seconds or more. If the computer is still not reset, remove the AC adapter and the battery.

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Contents Lenovo G770 Regulatory Notice First Edition March Copyright Lenovo Contents Page Getting to know your computer Top viewGetting to know your computer Integrated Built-in microphone TouchpadLeft-side view Right-side view Optical driveFront view Bottom view „ Conncting to the power „ Configuring the operating systemLearning the basics „ Reading the manuals„ Putting your computer into sleep state or shutting it down „ Shutting down your computer„ Checking battery status „ Charging the battery„ Removing the battery pack „ Handling the batteryUsing the touchpad Using the keyboard „ Numeric keypad„ Function key combinations Learning the basics Connecting external devices „ Using memory cards not supplied„ Connecting USB devices „ Connecting Bluetooth enabled device on select models Enabling Bluetooth communications on your computer„ OneKey Rescue system button a Special keys and buttonsSystem status indicators „ Using VeriFace „ Attaching a security lock not suppliedSecuring your computer „ Using passwords On select modelsSwitching between Mode 1 and Mode Connecting to the Internet Wired connection„ Software configuration Connecting to the Internet„ Hardware connection Wireless connection Wi-Fi WiMAXHardware connection OneKey Rescue system „ IntroductionOneKey Rescue system „ Creating a recovery discs OneKey Rescue systemOneKey Rescue system Troubleshooting Frequently asked questionsWhere can I find warranty information? Troubleshooting Display problemsTroubleshooting Password problems Sleep or hibernation problemsTroubleshooting Computer screen problems Sound problemsBattery problems Hard disk drive problemTroubleshooting Startup problem OneKey Rescue system problemsOther problems Replacing the battery pack Appendix A. CRU instructionsAppendix A. CRU instructions Handling a hard disk driveAppendix A. CRU instructions Appendix A. CRU instructions Appendix A. CRU instructions Replacing memory Appendix A. CRU instructions Appendix A. CRU instructions Removing the optical drive Appendix A. CRU instructions Trademarks Page New World. New Thinking.TM
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G770 specifications

The Lenovo G770 is a capable laptop that caters to the needs of users looking for a balance of performance, usability, and affordability. It is particularly suited for both casual users and professionals who require a reliable computing device for daily tasks, entertainment, and light gaming.

One of the standout features of the Lenovo G770 is its display. It comes equipped with a 17.3-inch HD LED display that provides vibrant colors and sharp images. This large screen size is ideal for multimedia consumption, allowing for an immersive viewing experience whether you are watching movies or browsing the web. The high-definition resolution ensures that text and graphics appear clear and detailed.

Performance-wise, the G770 is powered by Intel's Core i5 processor, which strikes a great balance between efficiency and computational power. The processor is complemented by up to 8GB of RAM, enabling smooth multitasking and the ability to run various applications simultaneously without noticeable lag. For users who require additional storage, the laptop can be configured with a sizable hard drive of up to 1TB, providing ample space for files, applications, and media.

In terms of graphics, the Lenovo G770 features integrated Intel HD Graphics, making it suitable for light gaming and graphics-related tasks. While it may not handle the latest AAA gaming titles at high settings, it does offer decent performance for older games and casual gaming experiences.

Connectivity options on the G770 are commendable, featuring multiple USB ports, HDMI output, and an Ethernet port, alongside wireless connectivity through Wi-Fi and Bluetooth. This ensures that users can easily connect to other devices, displays, and the internet, staying productive and connected.

Another notable aspect of the G770 is its ergonomic design which includes a comfortable keyboard, spacious touchpad, and good build quality. The laptop is designed for longevity and usability, making it suitable for extended periods of use, whether you are typing documents or navigating the web.

Regarding battery life, the Lenovo G770 aims to provide enough power to get through a full day of casual use, although heavy users may need to keep their charger handy. Overall, the Lenovo G770 strikes a solid balance between performance, functionality, and value, making it a great choice for a wide range of users looking for an efficient laptop experience.
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