Desktop PC Not Turning On Issue 100

There are many cases that cannot be turned on, and generally speaking, there are probably several hardware reasons that cause the system to fail to boot 1, and the computer power supply failure, resulting in the inability to supply power to the host normally. It is usually manifested as the host power supply does not light up2, and the reason for the memory module This kind of failure is generally caused by poor contact between the memory module and the motherboard memory slot, and the memory damage or the motherboard memory slot problem will also cause this kind of failure. There will usually be a continuous long tone alarm.

3. The failure of the motherboard is generally due to the aging of the original on the motherboard, etc., resulting in no alarm after booting, but there is no signal transmitted to the display. You can use the following steps to check: 1. You can hear a "beep" sound when you turn on the machine (normal startup sound); If the host boots normally, if it is not displayed, check whether the power supply is normal. Check if the cable is loose (if the motherboard has an integrated graphics card and a discrete graphics card, check that it is plugged in correctly). Check if the graphics card is loose or oxidized, and reseat it (or the memory if the graphics card is integrated).

Second, you can't hear a "beep" sound when you turn it on; Explain that the fault lies with the host, open the chassis and check. 1. Power on, if the power supply and CPU fan are running normally. It may be that the memory is oxidized.

Solution: Disconnect the host from power, unplug the memory, wipe it with an eraser and plug it back in. (If you have a discrete graphics card, check the discrete graphics card in this way).

2. After powering on, the CPU fan does not rotate; It may be that the motherboard has a power supply failure, check for leakage or bulging capacitors. If not, the fault is more hidden, please check it by a special person. 3. After powering on, the power supply fan does not rotate; First, check whether the power plug is loose.

If the plug is normal, disconnect the power plug, connect the "green wire" and "black wire" holes of the plug with a paper clip or wire, and then connect the power supply. If it does not turn, it means that the power supply is broken, and replace the power supply.

The blue screen on the halfway through the installation system must not be installed.,Personally, I recommend reinstalling it once.。

There are many reasons! Go to the computer repair and get it done in minutes!!

If you can't turn on the phone, it doesn't respond when you press the power button, or if you turn it on, there is no image?

Self-test and solution to the failure of the desktop computer that cannot be turned on:

1. If the host is not powered on, first check whether the indicator light on the chassis is on, put your hand on the power supply fan port, and see if the power supply fan is rotating, so as to judge whether the host is powered on; If the host is powered on normally, then see if the indicator light on the display is on, if it is on, the display is also normal when it is powered on, and both are normal, then the power supply fault is basically eliminated.

2. If the computer host or monitor is not powered on properly, please check that the power socket of the computer is in good contact, whether the power cord is broken, and whether the power strip is energized. If it is not caused by the above problems, it may be a problem with the host, and you can ask professional maintenance personnel to repair it at this time.

You can unplug it and check if there is bending, broken needle, and a lot of dirt in the D-shaped socket, which is a problem that many users often encounter. When connecting the D-shaped socket, due to uneven force, or forgetting to tighten the socket fixing screw, the socket is not in good contact, or due to improper installation method, the needle in the D-socket is broken or bent, resulting in poor contact, etc.

3. Open the side cover of the main chassis, check whether the CPU radiator fan and the power supply fan are running, if the fan is not running, then you can basically know the reason, either the motherboard or the power supply problem (if the indicator light on the motherboard is not on, it is a power supply problem).

4. If the CPU radiator fan and power supply fan are running, after shutting down, then we unplug the memory, use the eraser to erase the memory gold finger, change the memory slot and plug it in again.

5. If there are two memory, it is recommended that you unplug one memory and try to boot it up, if it can't be turned on, replace it with another (single) memory plug in, in case one memory is broken and the computer can't be turned on.

6. You can try to discharge the button battery on the motherboard (unplug the button battery and install it again), and then try to turn it on. If the computer has an integrated graphics card + a discrete graphics card computer host, most of the current computers are dual graphics cards, use a screwdriver to remove the discrete graphics card, connect the monitor cable to the integrated graphics card interface on the motherboard to try, if the computer can be turned on, it means that the discrete graphics card is broken.

The above is the self-test and solution of the desktop computer can not turn on, if you encounter the same problem, you can refer to the above method.

You can go to a professional repair shop to reset the system.

Either the system is broken, or the hardware is broken, you can go to a professional repair office for consultation.

You say that the computer desktop can't be turned on, this may be your computer is damp, or go to the repair shop to see, is your hard disk broken or motherboard broken, burn it is just repaired.

1. Reason: Socket problem.

Solution: Check whether the main line of the computer is plugged in, that is, to see if it is a problem with the socket, so check whether all plugs are powered on.

2. Cause: Memory module problem.

Solution: There may also be problems with the memory module, which is caused by poor contact between the memory module and the main memory slot, as well as memory damage or problems with the motherboard's memory slot. Especially for machines that haven't been used for a long time, take a memory stick, find an eraser to wipe the gold finger.

3. Cause: CPU fan problem.

Solution: The system can't boot, first check whether the CPU is normal. If it can't be started, it means that the CPU is broken, and it is likely that the CPU fan is not working, resulting in the CPU not being able to dissipate heat, and it will not turn on naturally, or open the case to see if the CPU fan is blocked by other parts such as wires.

4. Reason: Power supply problem.

Solution: There is also a high possibility that the power supply is broken, which is likely to be this problem. If possible, take a working power supply and replace it yourself to know if it is not. The main reason for a broken power supply is due to unstable voltage.

5. Reason: There is a problem with the motherboard circuit.

Solution: A circuit connector on the circuit board is broken, which will also lead to the failure to turn on, and there may be a short circuit between the motherboard and the chassis It is best to remove the bare spot of the motherboard and give the motherboard a power to see if it can be solved.

The first thing to do is to determine whether it is a hardware problem or a software failure.

Generally speaking, when the computer needs to be turned on several times in a row before it can start normally, most of them are caused by faulty power supply or memory. This kind of problem is best troubleshooting, the first is to rule out the memory fault, followed by the power failure, if both the power supply and the memory are eliminated, then the problem may be on the motherboard, but this kind of probability is low.

The most common problem with this kind of failure is the memory, and it is easy for this situation to occur when there is a small fault in the memory.

The solution can be like this, take out the memory, wipe the memory gold finger, and then install it back to try, if you have the conditions, try a new memory, if you don't have a new memory, you can consider removing it from other computers to try, and rule out whether there is a problem with the memory.

Let's see if the power cord of the monitor is not plugged in properly, if it is broadcast, it is estimated that the monitor is broken.

The issues that can occur are as follows:

First, check the power supply fan to see if the power supply fan is turning. Secondly, see if the CPU fan is rotating (the way to check is to touch the chassis with your hand to feel whether it vibrates).

Second, the monitor data cable is not in good contact with the host.

Third, the parts are not in good contact or compatibility, and they need to be re-replaced.

A, CPU and motherboard, B, motherboard and memory module, C, graphics card and motherboard (if there is a dedicated GPU).