There is a long beep when the computer is turned on, the monitor is not lit, and the sound of enteri

You try to do one of the following two things, first: remove the graphics card and wipe the gold finger. Second: Discharge the motherboard (disconnect the motherboard cable for power, then remove the button battery, and connect the positive and negative poles of the button battery holder with metal for 5 seconds).

Do you have an integrated graphics card or an external graphics card If the external graphics card doesn't show up, then you switch to the integrated graphics card. The socket for the monitor on the back of the case is not plugged in properly! If the socket is excluded, check that the power cord of the monitor is plugged in!

The second is to see if the display indicator is on。。 All of the above rule out, so sorry, there's something wrong with the monitor!

There may be a problem with the graphics card and data cable.

It could be a loose memory module! Check it out!

The computer boots up and the alarm sounds.

After the computer is turned on, I hear a sound of successful boot, but the monitor does not respond. Something went wrong:

After the computer is turned on, I hear the 'drop' sound when I boot it, and then I enter the win desktop**, but the monitor does not respond. It's the place that's wrong :

1- Graphics card-graphics card interface.

Signal Lines - Displays.

2- Unplug the signal cable Turn on the monitor Monitor:

A- There is the word 'no signal input' or other icon = the monitor is OK.

b- 'No signal input' or other icon = the display is not OK!

c- If you don't believe your ears, 'after the computer is turned on, you hear the sound of 'dropping' when you boot up, and then enter the win desktop**, 'then the monitor should show English or the cursor flashes, indicating the computer hardware.

No problem, it's the computer 'system' that doesn't start. Or:

d-I really hear 'After the computer is turned on, I hear the sound of successful startup,..The display is completely black (because it is under the win system at this time, and there will be no cursor flashing) can be pitted: the system crashes, and the system is reinstalled to solve the problem.

See if the keyboard case can be lit, if it can be lit, it is a display failure, check the monitor, line, graphics card.

It could be that the graphics card is broken, it may be that the cable connection of the monitor is not good, it may be that the monitor is broken, or it may be that the monitor is not turned on. The possibilities are many.

Check the power supply of the monitor or the cable interface. See if the connection is working.

1 When the monitor screen is black and there is no image display (but the current monitor on the market has no signal from the host, the screen will have no signal cable connection), first check whether the host power supply is well plugged in, and whether the fan of the power supply is rotating? Are the power indicators and hard disk indicators flashing on the host panel? Because if the host power supply is not working or the motherboard is not powered, the display will not have an image display when it does not receive a signal.

2 Recheck if the power supply of the monitor is plugged in properly? If the power switch of your monitor is a tact switch, you should hear a slight crackling sound when you power on the monitor, which can be judged that the switched power circuit of the monitor is good. Is the power switch on the remonitor turned on?

Is the monitor's power indicator on? When you put your hand close to the monitor screen and move it slowly, there is a sizzling sound, and at the same time, the hair on your hand feels sucked up, which is checking whether the monitor high voltage circuit is working properly. 3 If you are sure that the monitor has been powered on and there is a high voltage generated, continue to check whether the data cable connector of the monitor is in good contact with the signal output interface of the graphics card.

Is there any looseness? Unplug it again and check if there is any bent or broken needle or a lot of dirt in the D-connector. This is a problem that many users often encounter, when connecting the D-type socket, the force is uneven, or forgetting to tighten the fixing screw of the interface, so that the interface is loose and causes poor contact, or due to improper installation method or excessive force, there are broken needles or bent needles in the D-type interface, resulting in poor contact.

This situation is more common due to overheating of the graphics card, and other common reasons:

First, if the memory is loose or there is a problem with the memory itself, try to reinsert the memory or change the memory;

Second, the motherboard power supply chip is soldered or aged, the screen cable is loose or the motherboard short-circuits the screen power supply circuit;

Third, the graphics card, south bridge, and north bridge BGA packaging chips are soldered or damaged, and there are generally more cases of virtual soldering, so it is good to add soldering.

Judging from the maintenance experience, the specific reason needs to be detected by professionals, the computer is assembled, there is no such problem before, the screen power has also been turned on, and it can be turned on several times, but what is the reason for this kind of problem? Hardware or software reasons, please answer professionally, thank you.

Is the power of the display turned on, the cable or connector may be broken, unplug the graphics card and wipe it with an eraser.

Check whether the cable of the display is connected, if it is connected, it is estimated that the graphics card driver is not installed well, and it may be a hardware problem.