What s the matter with no screen after the computer is turned on?????

Why can't it?、It's only a wallpaper.,No menu and toolbox?,Press Ctrl+Alt+Delte key combination to open the "Task Manager"--File --- new task--- enter OK.,You can open the desktop program.

Otherwise, your line connection is not good, software and hardware problems, etc

Then there is the virus that destroys the desktop program file, copy one and put it in C: Windows....directory

1. Try to remove the memory you newly added. If it returns to normal, it means that your new memory is faulty or incompatible with your old machine. In 2001, there were many 810 series motherboards, and 810 motherboards did not support many 256MB of memory, and only 128MB could be recognized.

If you want to solve this problem, it is best to take the case to the merchant who sells memory, field test, which can recognize 256MB and run stably.

2. There is no screen after booting, and it may be caused by the difficulty in reading the hardware mailbox when starting up after a few minutes--- which may be caused by the decrease in the battery voltage of your motherboard. Try replacing a motherboard battery. 3-5 yuan.

Is there a problem with the monitor?

If there is no problem, it is the graphics card.

No sound or only one sound is normal when the device is turned on)

Your question is too vague about whether it's a desktop or a desktop icon.

You can add that and see if I can fix it.

Check the problem with the display, maybe the cable is not plugged in.

The graphics card should be fine, the memory is wrong, it will be blue screen, is it OK to make sure the CPU is good? Sometimes the CPU will also cause the non-display I was the problem last time, and then I just changed the CPU.

The computer boots up normally but the screen does not screen for the following reasons:

1. It may be that there is too much dust accumulation in the host, resulting in poor contact and causing a crash failure, you can check the CPU and graphics card heat dissipation, and then remove dust, oil, or replace the fan.

2. If the host is turned on normally, but the screen is not displayed, it is likely that the cable connecting to the screen is loose, as long as you find the cable connecting to the screen and plug it in.

3. If you confirm that the cables have been plugged in, but the screen and keyboard light are still not on, it may be caused by poor memory contact, and you need to replace the memory module.

Try it, if it still doesn't work or you hear a long alarm sound after replacement, it means that the memory is not installed, reinsert it again or insert another slot and try again.

4. If it still doesn't work after re-inserting the memory module, it may be that there is a problem with the graphics card. Try it.