My machine moved 1 week ago, and the chassis won t turn on when I reinstall it, what s going on

There are three solutions to this: First, you have a problem with the power supply, try it again (of course, read it first.)

two, three, it's never too late to change); Second, that's what I said upstairs, you change the sub-coms battery, don't just discharge, it's useless, I just repaired such a computer before, the situation is similar, at first I don't know what's going on, but then after all the things are removed, it still doesn't work, but it's OK to change the coms battery unintentionally; Third, that is, the last thing you want to see, that is, your motherboard is broken, you had better send it to the original factory, or find a professional to test your motherboard.

This must be the power supply part, you follow the power supply to see if the relevant connector is loose. Estimated there are no major problems.

Check whether the power output is normal. Or whether the switch on the case and the plug button on the motherboard are loose.

The power supply should be suspected in the first place!

It's a problem with the power box of the case, and it's OK to change it, not the motherboard and other problems.

Because if it's a problem with the motherboard, if you get the memory down, it will call the police, and I've had this problem before.

If you are sure that there is no loosening, clear the COMS on the motherboard. That is, the motherboard is discharged.

If you still can't get up, then you may have to send it for repair!

1. If you press the power button of the host, the power light will not light up or turn off when it is on, replace the switching power supply first.

2. If the power light is on after replacing the switching power supply, but it still can't start, press the num lock key, the num lock light will not light up, this situation is generally the motherboard can not start normally. Please shut down, take out the memory, clean the memory gold finger, and then plug it back in.

3, and then check the graphics card, clean the gold finger of the graphics card, reinsert the motherboard, and then try to boot the computer, if the keyboard light is on after booting, press the num lock key, the corresponding light will also be on, which is basically a problem with the graphics card.

4. If the screen is still black, but the display can be normal if you change to another monitor, the display is damaged and needs to be repaired. If the same is true after replacing the monitor, try to replace the graphics card, if it is normal after replacing the graphics card, the graphics card is damaged and needs to be repaired or replaced.

5. If the system just can't boot, there is an error or a blue screen, it can be solved by reinstalling the original system.

This is the POST screen.

I don't recognize the keyboard and mouse, have you plugged into the case port?