The computer broke down the day before yesterday. I took it for testing and said that the motherboard was burned. Then I changed the motherboard for 280 yuan, but after I installed the monitor,

This has nothing to do with Goldfinger! Don't always take the golden finger as an example: wiping the golden finger when you have nothing to do is equivalent to suicide!

(Warning: When operating, you should properly discharge static electricity by hand, that is, touch the floor or water pipe or wear rubber gloves. Don't unplug the computer hardware when the computer system is charging! ! ): Unplug the monitor and connect it to the VGA output interface of the motherboard. Open it. It will start normally at this time (if the machine is not broken).

First, you can plug other monitors into the test motherboard to prove that the motherboard slot is normal (this test can rule out the suspicion of insufficient motherboard and power supply).

Second, you can test the unique display, that is, plug it into other machines to prove that it is normal.

Third, if all the above are normal. It is possible that the graphics card and monitor are incompatible (don't think this is a joke, it is a common occurrence, and I have experienced it in N installations). Can you connect the latest factory monitor to the monitor to see if it is normal? -If you want to buy a monitor, you'd better bring your monitor (just bring it) for field test! ! ! !

Fourth, don't do anything stupid: 1, after plugging in a single monitor, connect the monitor to the integrated monitor of the motherboard. 2. Don't connect INTIL's graphics card to AMD's motherboard, and vice versa. 3. Don't turn off the PCI-E display channel in the BIOS (if this is not artificial, PCI-E display is usually preferred by default for all motherboards when they leave the factory, so there will be no jumper problem after the monitor is plugged in). 4. Is the independent power socket plugged in with an independent power supply?

5, usually: in the case of a single monitor connected to the motherboard, the single monitor has no monitor, and you will not display it when connected to the centralized monitor. If the stand-alone monitor is still plugged into the motherboard and connected to your setup monitor, it proves that your stand-alone monitor may be broken (except for a few motherboards).

Fifth, the visual display and motherboard should be plugged in firmly! After the computer system is powered on, visually inspect the unique monitor to turn the fan connected to the motherboard (prove that it works properly! )

6. If all else fails, you can turn off the computer system and unplug the monitor. Then remove the button cell from the motherboard. After removing the battery, press the main on/off button of the computer several times (to completely discharge the system motherboard). Plug in the monitor in a few minutes, and then install the button cell. The font face of the battery with the parameter label is usually up! Do you know the positive and negative poles? )。 This action: After 1, the computer system time will be out of order, so you need to check the time manually. 2. Computer motherboard settings such as BIOS settings have become factory preset.