The computer doesn t respond at all, and the computer doesn t respond at all

Is it a new machine or was it once in working order? If it is a new installation, see if your jumper has jumped wrong, if it has been used normally before, now it is not possible, it is recommended that the system is the smallest method, unplug all the wiring, except for the power supply connected to the motherboard, unplug everything such as the memory graphics card, as long as the motherboard and CPU, and then short the switch, see if there is a response. If not, the motherboard will be scrapped.

There are only two possibilities, the first is the key problem of the chassis, the PoW switch circuit connected to the motherboard is faulty, you can use a metal object such as a screwdriver or key to touch the PoW jumper of the motherboard to see if it can start.

The second possibility is the IO chip problem of the motherboard, the IO chip controls the power on/off, and the maintenance can be 20-30.

Then there is the relatively low probability of damage to the South Bridge, which is basically no repair or no repair significance.

Unplug any hardware on the motherboard, including leads, jumpers, except the CPU, and then use a screwdriver to directly tap the jumper of the switch and have a try! If it still doesn't work, it's a problem with the motherboard.

1. Replug the power connector of the motherboard.

2. Check whether the switch is stuck first (method: start directly on the switch/off jumper of the motherboard).

Troubleshoot the power supply, if the motherboard is normal, it may be a problem with the host panel switch.

You can try unplugging the boot jumper on the motherboard, the one named power, and then use a screwdriver or small wire to touch the two pins of the switch jumper, that is, start the computer manually without the boot button on the main unit.

If the computer is turned on at this time and the fan is powered on, it means that it is a problem with the host switch, and it is recommended to switch the restart jumper and switch jumper on the host panel, and use the restart button on the host panel to turn on the computer in the future.

If the computer does not respond at this time, it may be caused by the failure of the motherboard power supply part, it is recommended to detect the motherboard circuit, the easiest way is to observe the capacitors on the motherboard, to see if there are protrusions, leakage, if there is, replace the capacitor can be solved, if there is no capacitance, remove the motherboard for testing.

Start with the simplest part and see if there is any problem with the power switch of the case.

Is there a problem with the computer switch.

There are many situations where the computer does not respond when it is turned on, such as "after pressing the power button, the computer does not respond at all, and the power light does not light up", "after the computer presses the power button, the power light is on, the CPU fan turns, but the monitor has no signal" and so on. The computer does not respond when it is turned on is one of our common computer failures, I believe many people have encountered it, so if we do, what should we do? Today, Xiaolu will share with you several common situations and solutions that the computer does not respond when it is turned on.

1.The computer is turned on, the power light does not turn on, and there is no response. (1) In this case, the boot does not respond mainly due to the problem of power supply and motherboard.

First of all, we first check whether the plug of the computer is properly connected and whether the power cord is normal. (2) Check whether the wiring in the chassis is connected normally, if it is normal. Check if the power supply is damaged, you can use the replacement method (take another power supply and try to replace it).

3) If none of the above methods solve the problem that the computer does not respond when booted, then it is likely to be a motherboard problem. Check whether the wiring on the motherboard is normal. Workaround:

It is recommended to send it for repair. 2.The computer is turned on, the power light is on, the fan is turning, but the monitor has no signal.

This phenomenon of computer boot not responding is mainly caused by the failure of the motherboard, memory, and graphics card, and most of them are caused by poor contact between the memory or the gold finger of the graphics card and the motherboard. Solution: Unplug the memory and graphics card, clean the gold finger and reinstall it.

Try it at boot, if it hasn't solved the problem, then it's a motherboard failure, and it is recommended to send it for repair. 3.The computer is turned on, the power light is on, the fan is turning, and the hard disk is also in use (touch the hard disk and find vibration), but the monitor has no signal.

This situation is mainly caused by the failure of the monitor or graphics card, and the replacement method is used to replace and check one by one.