Chapter 4. Troubleshooting

Sleep mode 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 from sleep mode and the computer does not work.

•If your computer is in sleep mode, connect the AC adapter to the computer, then press any key or the power button.

•If the system still does not return from sleep mode, stops responding, or you cannot turn off the computer, please 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.

Display panel problems

The screen is blank.

The screen is unreadable or distorted.

Incorrect characters appear on the screen.

•Do the following:

-If you are using the AC adapter, or using the battery, and the battery status indicator is on, press Fn + ↑ to make the screen brighter.

-If the power indicator is in blinking, press the power button to resume from Sleep mode.

-If the problem persists, follow the solution to the following problem “The screen is unreadable or distorted.”

-Press Fn + F2 to confirm whether the LCD screen has been turned off.

•Make sure that:

-The display device driver is installed correctly.

-The screen resolution and color quality are correctly set.

-The monitor type is correct.

•Are the operating system or programs installed correctly? If they are installed and configured correctly, have the computer serviced.

Audio problems

No sound can be heard from the

• Make sure that:

speaker even when the volume is

- The Mute function is off.

turned up.

-

The headphone jack is not used.

 

-

Speakers are selected as the playback device.

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Lenovo Y400, Y500 manual Troubleshooting Sleep mode problems, Display panel problems, Audio problems
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Y500, Y400 specifications

The Lenovo Y400 and Y500 laptops, part of the IdeaPad series, were well-received by gamers and performance enthusiasts alike upon their release. These portable powerhouses were designed to strike a balance between gaming performance and everyday usability, making them attractive options for a wide audience.

The Lenovo Y400 features a 14-inch display that boasts a resolution of 1366 x 768 pixels, while the Y500 ups the ante with a 15.6-inch Full HD display (1920 x 1080 pixels), delivering enhanced visual fidelity that is particularly appealing for gaming and multimedia consumption. Both models are equipped with LED backlighting, ensuring vibrant colors and deep contrasts that elevate the overall viewing experience.

Powering these machines are Intel's third-generation Core i5 and i7 processors, which provide robust performance for multitasking and demanding applications. The laptops support up to 16GB of RAM, ensuring that users can run multiple applications simultaneously without any hiccups. This is particularly advantageous for gamers who need seamless transitions between games and other programs.

One of the standout features of the Lenovo Y400 and Y500 is their graphics performance. The Y400 offers NVIDIA GeForce GT 650M graphics, which offers excellent 3D capabilities for gamers. The Y500, on the other hand, takes performance to the next level with an optional dual-GPU configuration, utilizing NVIDIA's technology to deliver enhanced frame rates and performance in graphically demanding games.

In terms of storage, both laptops offer a variety of options, including traditional hard drives and solid-state drives, allowing users to select the configuration that best fits their needs for speed and storage capacity. The inclusion of Lenovo's "OneKey Recovery" feature further simplifies data management and backup.

The design philosophy behind the Y400 and Y500 is both aesthetic and functional. Their robust housing features a modern design with customizable keyboard backlighting, which adds an appealing flair while also improving usability in low-light conditions. Additionally, the laptops include an array of ports, such as USB 3.0, HDMI, and audio jacks, providing flexibility for connecting to various peripherals and external displays.

Overall, the Lenovo Y400 and Y500 stand out in the competitive laptop market due to their blend of portability, performance, and aesthetic appeal. They provide an effective solution for users who seek a capable gaming laptop without compromising on style or functionality. Whether for gaming or everyday tasks, these laptops cater to a diverse range of computing preferences.
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