General method of computer boot without reaction or black screen phenomenon

1. When the monitor black screen does not have the image display (but the current market of the monitor in the host has no signal to send, the screen will monitor "No Signal line Connection"), first check the host power is plugged in good, the power supply fan rotation? Is the power LED and hard drive light on the host panel flashing? Because if the host power does not work or the motherboard does not power supply, the monitor does not receive the signal, of course, there will be no image display.

2. Check whether the power supply of the monitor is plugged in well? If the monitor's power switch is a touch switch, when you add electricity to the monitor, you should hear a slight "crack" sound, then you can judge the display switch power circuit is good. is the power switch on the monitor turned on? Is the power led on the monitor lit? when hand close to the monitor screen and slowly move whether there is a "hissing" sound, while the hands of the hair has been a feeling of suction, this check the display High-voltage circuit is working properly.

3 Open the chassis check that the monitor card is properly installed? Is it in good contact with the motherboard slot? is the video card or slot due to too long time to accumulate dust too much, resulting in poor contact? The chip on the video card has traces of burnt and cracked. When the video card causes a black screen, the computer post is a short four-long "beep beep" sound. When installing the display card, it is necessary to hold the upper part of the display card by hand and insert the card slot evenly and forcibly, so that the fixed screw port of the video card matches the screw mouth of the main box. Do not force fixed when not inserted, resulting in distorted graphics. If you are sure that the installation is correct, you can remove the video card with an alcohol sponge swab the gold finger of the pin or switch to a slot (only for PCI video cards). If not, you can only change a good video card for a try.

4. Check to see if the memory strips are in good contact with the motherboard? Reseat the memory strips once or in a different slot, or replace the new memory strips. If there is a problem with the memory bar, the computer will have a continuous "beep" sound when it starts. The beep is different because the motherboard is different.

5. If the display is displayed during the computer startup process, it is only a matter of the system software when the screen appears black after loading windows.