Contents

Chapter 1. Safety information
- General safety
- Electrical safety
- Safety inspection guide
- Handling devices that are sensitive to electrostatic discharge
- Grounding requirements
- Safety notices (multilingual translations)
Chapter 2. General checkout
- What to do first
- Checking the ac power adapter
- Lenovo Legion Y740 Series CRU list
Chapter 3. Identifying FRUs (CRUs)
- All FRUs (CRUs) for Lenovo Legion Y740 Series
- Miscellaneous parts
Chapter 4. Removing a FRU or CRU
- General guidelines
- Remove the lower case
- Remove the battery pack
- Remove the M.2 solid-state drive
- Remove the coin-cell battery
- Remove the storage drive (for selected models)
- Remove the memory module
- Remove the Wi-Fi card
- Remove the subwoofer (for Lenovo Legion Y74017)
- Remove the heat sink and fan assembly
- Remove the speakers
- Remove the I/O board
- Remove the system board
- Disassemble the LCD module
  - Remove the LCD module
  - Remove the LCD bezel
  - Remove the hinges
  - Remove the LCD panel
  - Remove the camera and microphone board
Appendix A. Label locations
Trademarks

Lenovo Legion Y740-15ICHg Hardware Maintenance Manual

Lenovo Legion Y740-15ICHg Laptop manual cover

Pages 76

Year 2019

Language(s)

of 76

Lenovo Legion Y740-15ICHg Laptop Specification

The Lenovo Legion Y740-15ICHg is a high-performance gaming laptop designed to meet the demands of modern gamers and content creators. It features a 15.6-inch Full HD display with a resolution of 1920x1080, enhanced by a 144Hz refresh rate and NVIDIA G-SYNC technology, ensuring smooth and immersive visuals with minimal screen tearing. Powered by a 9th Generation Intel Core i7-9750H processor, it delivers robust computational performance, complemented by the NVIDIA GeForce RTX 2080 Max-Q graphics card, which provides exceptional rendering capabilities for the latest games and graphic-intensive applications.

The laptop is equipped with 16GB of DDR4 RAM, expandable up to 32GB, offering a responsive multitasking experience. Storage is handled by a 512GB NVMe SSD, providing fast boot times and quick access to applications and files. The Y740-15ICHg features a precision-engineered keyboard with Corsair iCUE RGB backlighting, customizable to fit any gaming environment, enhancing both aesthetics and functionality.

Connectivity options include a range of ports such as USB 3.1, HDMI 2.0, and Mini DisplayPort 1.4, along with Thunderbolt 3, which supports high-speed data transfer and external display connectivity. The laptop also supports Wi-Fi 802.11ac and Bluetooth 5.0, ensuring seamless wireless communication. Its audio system is powered by Dolby Atmos technology, delivering rich, immersive sound through its stereo speakers.

The Lenovo Legion Y740 is housed in a sleek, durable aluminum chassis, combining style with portability. With its advanced cooling system, it efficiently manages heat even during extended gaming sessions. The Y740-15ICHg blends high-end specifications with innovative features, making it a formidable option for gamers seeking performance and reliability.

Lenovo Legion Y740-15ICHg Laptop F.A.Q.

How can I improve the battery life of my Lenovo Legion Y740-15ICHg?

To enhance battery life, reduce screen brightness, close unnecessary applications, and disable keyboard backlighting. Additionally, use the Lenovo Vantage software to enable battery saver mode and update the system regularly.

What should I do if my Lenovo Legion Y740-15ICHg overheats?

Ensure that the laptop is placed on a hard, flat surface to allow proper airflow. Clean the vents and fans regularly to prevent dust buildup. Consider using a cooling pad and update BIOS and drivers to the latest versions.

How do I update the graphics drivers on my Lenovo Legion Y740-15ICHg?

You can update the graphics drivers by visiting the NVIDIA website for the latest drivers specific to your GPU model. Alternatively, use the Lenovo Vantage software to check for and install driver updates automatically.

Why does my Lenovo Legion Y740-15ICHg have a slow boot time?

Slow boot times can be improved by disabling unnecessary startup programs via Task Manager. Consider upgrading to an SSD if your laptop uses an HDD, and ensure that your operating system and drivers are up-to-date.

How can I perform a factory reset on my Lenovo Legion Y740-15ICHg?

To perform a factory reset, go to Settings > Update & Security > Recovery. Under 'Reset this PC', click on 'Get started' and follow the prompts to reset your laptop to its factory settings.

What is the best way to clean the screen of my Lenovo Legion Y740-15ICHg?

Use a microfiber cloth slightly dampened with water or a special screen-cleaning solution. Gently wipe the screen in a circular motion to avoid streaks and never spray liquid directly onto the screen.

How do I connect my Lenovo Legion Y740-15ICHg to an external monitor?

Use the HDMI or Mini DisplayPort on the laptop to connect to an external monitor. Once connected, press Windows + P to select the desired display mode, such as Duplicate or Extend.

What should I do if the keyboard backlight on my Lenovo Legion Y740-15ICHg is not working?

Ensure that the keyboard backlight is enabled by pressing the 'Fn' key along with the spacebar. Check the Lenovo Vantage software for any keyboard settings, and update drivers if necessary.

How can I upgrade the RAM on my Lenovo Legion Y740-15ICHg?

Turn off and unplug your laptop, then remove the bottom panel by unscrewing it. Locate the RAM slots and carefully insert compatible RAM modules. Replace the panel and screws, then boot up the laptop to check if the RAM is recognized.

What steps should I take if my Lenovo Legion Y740-15ICHg won't power on?

Check if the power adapter is properly connected and the outlet is working. Perform a hard reset by holding the power button for 15 seconds. If the issue persists, try removing the battery (if removable) and then attempt to power on with only the AC adapter.