Power problems

2.If the above step is correct, turn off the computer, then disconnect the ac power adapter and uninstall the main battery.

3.Reinstall the battery and reconnect the ac power adapter, then turn on the computer.

4.If the power adapter icon still does not appear on the task bar and the ac power indicator does not light up, have the ac power adapter and your computer serviced.

Note: If your computer is a Windows 7 model, to display the power adapter (power plug) icon, click Show hidden icons in the task bar.

Print these instructions now and keep it with your computer for reference later. If your computer is getting no power at all, check the following items:

1.Verify the power switch. Refer to “Status indicators” on page 18. The power switch is illuminated whenever the computer is on.

2.Check all power connections. Remove any power strips and surge protectors to connect the ac power adapter directly to the ac power outlet.

3.Inspect the ac power adapter. Check for any physical damage, and make sure that the power cable is firmly attached to the adapter brick and the computer.

4.Verify the ac power source is working by attaching another device to the outlet.

5.Remove the computer from a ThinkPad X220 Ultrabase. Refer to “Detaching a ThinkPad X220 Ultrabase” on page 153.

6.Remove all devices and then test for system power with minimal devices attached.

a.Disconnect the ac power adapter and all cables from the computer.

b.Close the computer display, and turn the computer over.

c.Remove the battery. Refer to “Replacing the battery” on page 116.

d.Remove the memory (SO-DIMM). Refer to “Replacing memory” on page 143.

e.Remove the PCI Express Mini Card. Refer to “Installing and replacing the PCI Express Mini Card for wireless LAN/WiMAX connection” on page 131.

f.Remove the hard disk drive and solid state drive. Refer to “Replacing the hard disk drive” on page 125 and “Replacing the solid state drive” on page 128.

g.Wait for 30 seconds, and then reinstall the SO-DIMM and the known good battery or the ac power adapter to test the computer with minimal devices attached first.

h.Reinstall each device one at a time that you have removed in the earlier steps.

If your computer does not run on battery power, check the following items:

1.Remove and reseat the battery to make sure that it is properly connected. Refer to “Replacing the battery” on page 116.

2.Swap batteries with another similar model, if available.

If another similar ThinkPad model is available, then verify that the battery pack works in the other computer and that the battery pack for the other model works in this computer.

3.Verify the battery-status indicator. Refer to “Status indicators” on page 18.

The battery-status indicator is normally illuminated whenever the battery is installed and the computer is on, or the ac power adapter is connected and the battery is charging. This indicator may be blinking or solid in either orange or green color depending on the status of the battery.

230User Guide

429040 specifications

The Lenovo 429040 is an innovative laptop model that caters to both business professionals and casual users alike, combining portability, performance, and design. This device is engineered to meet the demands of modern computing, making it a standout option in the competitive laptop market.

One of the main features of the Lenovo 429040 is its sleek and lightweight design. Weighing just around 3.5 pounds, it is incredibly portable, making it easy to carry for on-the-go professionals or students. The laptop sports a robust chassis made from durable materials, ensuring longevity while also maintaining a modern aesthetic. The design incorporates a high-resolution display, typically a Full HD IPS panel, which offers vibrant colors and wide viewing angles. This is perfect for both work presentations and multimedia consumption.

Under the hood, the Lenovo 429040 is equipped with powerful processing capabilities. It often comes with the latest Intel or AMD processors, providing the necessary power for multitasking and demanding applications. Coupled with significant RAM options, typically ranging from 8GB to 16GB, users can run multiple applications simultaneously without experiencing slowdown. This makes it ideal for tasks such as video editing, software development, and heavy browsing.

In terms of storage, the Lenovo 429040 generally features fast SSD options, enhancing overall system responsiveness and boot times. With storage capacities ranging from 256GB up to 1TB, users have ample space not only for their operating system but also for applications and personal files.

Moreover, the laptop incorporates advanced technologies such as Wi-Fi 6 for faster internet connectivity and Bluetooth compatibility for seamless wireless connections with peripherals. The battery life is another significant characteristic, often lasting up to 12 hours on a single charge, allowing users to work or enjoy media without constantly seeking power outlets.

The keyboard of the Lenovo 429040 is designed for comfort, featuring backlit keys that facilitate typing in low-light conditions, along with a responsive touchpad. Security features such as a fingerprint reader and optional AI-based security enhancements are additional highlights that ensure data protection.

Overall, the Lenovo 429040 stands out for its combination of style, performance, and practicality, making it a reliable choice for those looking for a capable laptop that can adapt to various usage scenarios. Whether for business tasks, educational purposes, or entertainment, it delivers a well-rounded experience.

Lenovo 429040 manual Power problems

Models: 429040

Power problems

230User Guide

429040 specifications