The computer is not responding when it is turned on, and the fan is turning

Friends who often use computers should encounter this situation, after pressing the power button when turning on, the computer does not respond, and the monitor does not light up. Remove those foolish fault causes, such as the power supply of the monitor and host is not plugged in properly; In addition to the signal interface between the monitor and the motherboard, the common fault causes are as follows.

In fact, there are two situations for this fault, one is that the CPU fan turns black after booting, and the other is that the CPU fan does not turn when the power button is pressed. Let's start with the simpler first case.

The cause of the failure of the CPU fan turns but the screen is black after booting can generally be distinguished by the motherboard BIOS alarm sound, and we will list the meaning of the commonly used motherboard BIOS alarm sound behind.

AwardBIOS program**, press del at boot to enter.

Generally, our BIOS is AWARD, so here we only list the meaning of the alarm tone of this BIOS.

1 short. The system boots normally.

2 short. General error, please go to CMOS

setup to reset the incorrect option.

1 long and 1 short. There was an error with the RAM or motherboard.

1 long and 2 short. Graphics card errors --- common.

1 long and 3 short. Keyboard controller error.

1 long and 9 short. BIOS corruption.

Ringing (long sound) constantly

Unstable or corrupted memory insertion --- common.

Ringing non-stop. The power supply, the monitor and the graphics card are not properly connected.

Repeat short rings. Power supply.

If your computer is one of the alarm tones above, you can "treat your head and feet".

One of the common faults of the computer not turning on.

You also know that you can unplug the memory module and plug it back in, you can unplug it again, erase the part that touched it (the shiny metal part) with an eraser, and put it back in and try it back.

There are many problems with memory modules, you can remove them to clean up the gold finger, and then install them in general!

There are also some motherboard problems, it is more troublesome, the computer can not use ordinary regulated power supply, if the external power supply is not good, then buy a UPS regulated power supply!

Take off the memory, clean it and put it on.

There is a problem with any of the power supply, graphics card, memory, motherboard, etc.

In this case, the internal hardware is not cleaned for a long time, or the memory module is not installed properly, or the CPU and the heat dissipation silicone are connected to the problem, the specific solution is as follows:

1. Unplug the power supply and prepare cleaning tools; Open the case with a screwdriver and clean the fan; It's relatively simple to pull the fan up for cleaning, and it's good to clean it. Turn it back on.

2. Dial out the memory module, check it with an eraser, and then install it back on the computer, pay attention to tighten it tightly when installing, the normal computer memory module will not be turned on and will not respond only if the fan is moving.

3. Replace the computer heat dissipation silicone, prepare the silicone, buy a one-time enough to use it, twist the screws around the computer fan, and then you will see the CPU and heat dissipation silicone sticking, wipe off with paper and replace with a new one.