There is no alarm sound when the computer is turned on, and the monitor is not responding!

The power supply is broken, just replace it. If I tell a lie, you can scold me.

According to the experience elimination method of maintenance, it should be the most reliable method, after all, there are too many reasons according to the landlord, such as memory (according to the sound of booting, the sound is abnormal according to the landlord, most of them are caused by memory and graphics card, especially the main reason for memory).

Graphics card (if there is a problem with the graphics card, it will also be like this, such as bad contact, or other problems with the graphics card, in this regard, the landlord did not describe the situation of the display in detail, such as whether the monitor is prompted in the case of plugging and dialing, or whether the power indicator of the display is on, and by the way, the display is excluded).

Then there is the motherboard problem, (the landlord should indicate that it is an integrated graphics card or a discrete graphics card) I hope the landlord can find some ideas, thank you!

It's a problem with the power supply, you can consider replacing the power supply, or remove the motherboard, remove the battery, and put the electricity clean thoroughly, it's OK, I work in an Internet café, and I often encounter such problems, so I just follow this method.

This situation will occur if the CPU or graphics card is not working properly, and the optical fan can only indicate that there is power.

The memory is definitely discharged, rest assured.

Generally, this problem is the graphics card. and memory.

Insert the gold fingers of the graphics card and memory with an eraser or some softer paper a few times.

If it really doesn't work. It is possible that there is a problem with the motherboard, graphics card, and memory. The power supply is generally very unlikely.

I also have this problem with my computer. Sometimes it works. Sometimes it doesn't work. The reason is that the machine has been used for too long. Too much dust. Some parts are not in good contact. Clean up the dust inside the case carefully and you'll be fine.

Problems with memory or motherboard.

Try a change of memory.

If it doesn't work, it should be a problem with the motherboard!

Problems with the motherboard, BIOS discharge to try it.

Trickle of Painting, Iron, T

1. First of all, we conduct a comprehensive check on the connection between the computer monitor and the host, and plug each connection back to see if there is a connection problem.

2. If the fault still exists, then we need to open the chassis to see if the chassis contains metals and other substances, causing a short circuit in the computer host circuit, and then we smell the computer to see if there is a burning smell, and see if there are damaged components around the motherboard and around the CPU.

3. After checking the whole chassis, there is no abnormality in the chassis, then we will dust the chassis.

4. If it can't be turned on, then use the minimum system method, unplug the data cable of the hard disk, floppy drive, and optical drive, and then check whether the computer can be turned on. Then connect the above devices to the computer one by one, when connecting a certain device, the fault will recur, indicating that the fault is caused by this device, and finally focus on checking this device.

5. If the fault still exists, it is likely to be the fault of the memory card, graphics card, CPU, motherboard, etc., at this time, we only need to plug and unplug these hardware, or replace it again, and try to find the cause one by one.

6. If the memory, graphics card, CPU and other devices are normal, then discharge the BIOS, use the isolation method, place the motherboard outside the chassis, connect the memory, graphics card, CPU, etc. for testing, if the computer can be displayed, then install the motherboard into the chassis for testing until the cause of the fault is found. If the fault persists, you need to return the motherboard to the manufacturer for repair.

7. When the computer is turned on and started, the system BIOS starts to POST (power-on self-test), and when a fatal error is detected in a device in the computer, it will control the speaker to send out a sound to report the error. Therefore, there may be a fault that the power is turned on without displaying an alarm sound. If the computer is turned on and there is no alarm sound, the fault can be checked according to the meaning of the BIOS alarm sound to check the faulty device to eliminate the fault.