After the computer is turned on, the Lenovo logo is displayed, and then the battery saving mode is d

1) Press the F8 button when you boot up, the advanced options menu appears in the release of your hand, and select to enter the "VGA mode" to enter the system.

After logging in: Right-click on the desktop to select Properties Settings Advanced Adapter List all modes Drag the scroll bar up and down, and click to select "1024*768, True Color (32-bit), 75 Hz, LCD Select 60 Hz", click "OK", click "Apply" OK, and finally restart the computer (or set the appropriate resolution by yourself).

2) If it is not caused by the above problems, first soft and then hard, reinstall the operating system, do not install software, patches, drivers, etc., and see if there is still a problem with booting? If you don't install drivers, patches, and software step by step, and find something that isn't suitable, don't install it.

Please note: If you restore the system or reinstall it, when installing drivers, patches, software and other things, be sure not to install the things that affect your accident this time, otherwise it will be restored or reinstalled in vain.

3) Whether there is a problem with hardware, such as hard disk, memory, graphics card, motherboard, etc., if it is caused by hardware problems, it is recommended to overhaul it.

The computer boot display automatically enters the energy-saving mode because it does not receive a signal, which is generally due to poor contact due to loose or oxidized memory modules, or poor contact of the display data cable, or damage to the memory, graphics card, monitor or data cable. Handling suggestions:1

If the monitor is powered on but no signal is displayed, turn off (if the short press of the power switch is invalid, press and hold the switch until the power indicator goes out or directly unplug the power cord) Power off the case, replug and unplug the memory module, and wipe the gold finger with an eraser in one direction (the back of the thumb fingernail is also fine), if possible, it can also be installed in different memory slots, and then turned on after installation (before operation, you should also touch the wall with both hands to release your static electricity or wear anti-static gloves). If you don't know how to do it, it's simple: slap or kick the chassis once or twice (note the location:

The front of the shell on the left and right sides of the chassis without an interface in the back; Attention said: Don't push too hard, of course, don't be weak). The above may need to be repeated, and if it doesn't work, you need to replace the memory module.

If you have more than two memory modules, you need to test them one by one. 2.If the above operations do not work, turn off the power and turn on the chassis, reinsert the graphics card, and plug in the data cable between the monitor and the graphics card.

If it still doesn't work, consider that the cable or graphics card is damaged, then replace it with a new one. 3.If the monitor is not powered on (the indicator light is not on), check whether the power switch is turned on, then check the back of the monitor, plug the power cord connected to the monitor upwards (the power cord can be replaced if possible), and check whether the other end of the power cord is powered on to the outlet.

4.If the display can be displayed when connected to another monitor or the display of this machine is connected to another normal host and still cannot be displayed, it means that the monitor is damaged and needs professional repair.

Hello, just describe, press the keyboard case keys at this time to see if the keyboard case light can be lit. If it can be lit, there is a problem with the graphics card or monitor. If it doesn't light up, the self-test can't do it, and the computer is not working properly.

Recommendations, 1Turn off the power off, take down the memory and erase the gold finger part with an eraser. 2.

Press the power button 5-6 times quickly and wait for 2 minutes3Plug the memory back in, and then power on to try to turn it on. Finally, if the computer does not respond after pressing the power button, and the above process has been, then it is a power supply problem.

The power supply needs to be replaced. In addition, there is a high probability that the self-test is not successful, and the memory is caused by oxidation. Generally, the above process is finished.

1.Set up the issue. Press the F8 button to turn on and do not move, the advanced options menu appears in the release hand, select to enter the "VGA mode" to log in to the system.

After logging in, right-click on the desktop to select Properties - Settings - Advanced - Adapter - List All Modes - Drag the scroll bar up and down, and click to check "1024*768, true."

2.System issues. If it is not caused by the above problems, reinstall the operating system, do not install software, patches, drivers, etc., and see if there is a problem with the boot. After restoring the system or reinstalling it, install the driver.

3.Hardware issues. For example, whether there is a problem with the hard disk, memory, graphics card, motherboard, etc., if it is caused by hardware problems, you can repair it.

Take Lenovo Y7000, Win10 system as an example, the specific operation method is as follows:

1. Restart the computer, and press and hold the "F8" button during the reboot process.

2. After pressing and holding the "F8" key, the computer screen will automatically pop up the "Advanced Options Menu", at this time, find and click to select the "VGA Mode" on the screen, and hit the "Enter" key on the computer keyboard to enter the system.

3. After booting up, right-click on the blank space of the desktop, find and click in the dialog box that automatically pops up to select the "Properties" option.

4. After clicking the "Properties" option, find and click on the "Settings" option in the automatic pop-up window, then select the "Advanced" option, find and select the "Adapter" option in the "Advanced" option, and list all modes.

5. In all modes, find and select "1024*768, true color (32-bit)", and click the "OK" option.

It's important to note that this answer applies to most models of Lenovo computers.

In win7, first find the host of the computer, press and hold the start button on the host, and restart the computer. Then make the following settings:

1. After entering the desktop of your computer, launch the control panel.

2. On the page of the control panel, find the power option.

3. Click the icon of the power supply to enter the power supply setting page.

4. On the power settings page, click the button to change the power plan.

5. The display options will be turned off and the selection menu will appear.

6. In the selection menu, select Never turn off the monitor.

How to solve the problem that the Lenovo computer boot screen shows the power-saving mode and then the black screen? Hello dear, 1First, check whether the VGA** cable is firmly inserted into the host interface and monitor interface, then check whether the contact between the graphics card and the motherboard I-O slot is good, and finally check whether the CPU fan is running normally; 2.

If the computer starts normally, the original monitor may be damaged; 3.You can remove all components of the computer except the CPU, graphics card, and memory module and boot the computer. If there is a fault in the memory, there should be an alarm sound.

If there is no alarm sound, then turn on the CPU and re-detect. If the computer screen is still black, it is recommended to replace the motherboard; 4.If the system installs software and updates patches that cause a black screen, you can try to uninstall the update file; 5.

After installing the software on the computer, restarting the update causes a black screen and waits for the update to be completed. 6.Enter the safe mode to repair the computer, if it can't enter the safe mode, please reinstall the system. Hope it helps.

The main unit is powered on, the monitor is not displayed, the indicator light is yellow, and it prompts no singnal (no signal input) or "please check the signal cable", indicating that there is no ** signal input to the monitor.

Workaround and Steps:

1. First of all, check whether the two ends of the signal cable connected to the monitor and the host are loose and fall off, and if so, reinstall and fix it tightly.

2. Fix the signal cable, start the test again, if the fault is still there, open the rotten cover on the side of the computer host, and first clean up the dust in the rolling posture of the host, especially the chip pins, CPU power supply part, and the dust in the slot.

3. Replug and unplug the memory. And wipe the gold finger part of the memory with an eraser to remove the oxide layer, rust and dirt. Reinstall the test.

4. After reinstalling the memory, if the fault persists, disconnect the power supply of the host, cut off the BIOS battery on the motherboard, and short the positive and negative pins in the battery slot for 6 seconds. Or according to the instructions, short the BIOS pins for 6 seconds to discharge (electrostatic) the motherboard, and then reinstall the battery or jump the jumper back to its original position. Power on the host again and start the test.

5. If the fault persists, remove all the power and data connections of the equipment that are not related to the start. Only the CPU, memory, graphics card, and power supply are left behind. Take the test.

6. Finally, the power supply and graphics card can be replaced for testing.

7. If the fault still cannot be eliminated, send it to a professional maintenance point for detailed maintenance.