The computer can t be turned on, and the computer screen is black. Plug in the detection card, C1 pa

The detection card has no numbers from beginning to end Problem: CPU or motherboard You can use the elimination method to determine whether the good CPU is good or bad and then determine whether it is the motherboard I guess the problem of the motherboard is relatively big Call the master to check the capacitance of the CPU power supply Inductance MOS tube.

The memory possibility is high, and then to the motherboard, the CPU probability is quite low (as can the imbalance of the heatsink installation).

Usually the motherboard or CPU is bad, there is also a display, this is estimated to be a problem with a certain power supply of the power supply, it is recommended to change the power supply first, if there is a separate graphics card may be bad short circuit, CMOS discharge, and then turn on. This also does not light up and then consider the motherboard, and then the CPU.

This should be a problem with your graphics card, you unplug the graphics card, wipe it off and put it back on.

Fault symptom 1: Turn on the power and press the power button, the computer has no movement.

Analysis: At this time, the power supply should supply power to the motherboard and each hardware, and there is no movement to indicate that there is a problem with the power supply part. (including the motherboard power part).

Check the ideas and methods:

1. If there is a problem with the mains power supply, please check whether the power socket is normal and whether the power cord is normal.

2. If there is a problem with the power supply of the case, please check whether there is a 5 volt standby voltage, whether the connection between the motherboard and the power supply is loose, if you can't measure the voltage, you can find a power supply to change it.

3. Motherboard problems, if there are no problems with the above two, then the possibility of motherboard failure is relatively large. First of all, check whether the connection between the motherboard and the boot button is loose and whether the switch is normal. You can try shorting the switch with a wire.

If not, you can only try replacing a motherboard. (Note: Try to find a board with the same model or chipset, as other motherboards may not support your CPU and memory).

Fault phenomenon 2: Press the power button, the fan rotates, but the monitor has no image, and the computer cannot enter the normal working state.

Analysis: Fan rotation means that the power supply has started to power supply, the monitor has no image, the computer cannot enter the normal working state, the computer has not passed the system self-test, the motherboard BIOS settings have not been output to the monitor, and the fault should be on the motherboard, graphics card and memory. But sometimes a poor quality power supply and a damaged display can also cause this failure.

The memory is not plugged in, and the data cable from the graphics card to the monitor is not connected properly.

Big brothers, there is no signal on the detection card, is it obviously a power supply problem, either the power supply is burned or the motherboard capacitor and circuit are burned No signal is naturally no power View the original post".

I generally don't need to detect the card, first the first step is to unplug the memory and wipe the gold finger with an eraser, and then pull out the graphics card, which is also to wipe the gold finger with an eraser. If the problem is still not solved, remove the CPU fan and CPU and blow the dust inside. If the problem is not solved, go to a professional store to test the motherboard!

AMI BIOS, memory or hard drive issues, Award BIOS, motherboard issues,

The main thing is where to stop at the end, that is, 45, the matter of the graphics card, the integrated motherboard is repaired, the independent plugging and unplugging cleaning slots, the external power supply is checked, and finally the repair is made.

It should be the more likely that the motherboard is bad, followed by the CPU. You can try it at a repair shop. There should be a CPU of 940

Is it that the motherboard power supply is not connected properly, it stands to reason that even if the CPU is broken, the detection card is also displayed.

Either that, or the motherboard is really broken.

The least likely thing to break is the CPU.

The most problematic thing is the motherboard.

Detecting that the card does not light up is a typical motherboard issue.

The computer can't turn on, there are many possibilities, as far as you say it's not good, it's bad to judge that it's bad.

1. All this situation is a problem with the graphics card, you can remove the graphics card and dispose of the gold mobile phone, if it is not good! Let's take the minimal system approach! Remove the motherboard and check it again, which will be much faster! Hope it helps.

Unplug all connections. Only CPU, memory. Try it on.

**Stuck in memory, it is recommended to wipe the memory module with A4 paper, and of course the card C0 is not inserted into the memory. Wipe it with a card inserted. Try unplugging the graphics card and seeing. Some computer graphics cards will affect **, but if it doesn't work, the computer is broken.

It is recommended that you wipe it carefully

It should be a motherboard problem, you can find the same motherboard, and then try to see if your other accessories are good.