What should I do if the power of the main computer cannot be turned on?

Specific solutions are as follows:

Step 1: Unplug the power plug, and then press the computer power switch to release the remaining amount of electricity in the Zhuan host, then turn on the power, and restart (if invalid, go to the next step, the same below);
Step 2: Open the case, wash your hands with clean water, wipe dry, unplug the memory stick, turn on the power, turn it off, plug in the memory stick, and turn it on;
Step 3: Unplug the graphics card, then reconnect the graphics card and monitor, and turn on the computer;
Step 4: Unplug the data cable and power cable of the hard disk, power on and turn off the device, plug in the data cable and power cable again, and turn it on;
Step 5: Locate the motherboard battery, remove it carefully, do not use force to prevent the tool from scratching other parts, short the two contacts of the battery on the motherboard (not the positive and negative poles of the battery), power on, and then put the battery back in place and turn it on;
Step 6: Disconnect the host and other (display) components, turn on the host and observe the host’s hard disk lights, etc., to see if the host is running;
Step 7: Find professionals to help;
Step 8: Send to the repair shop.