Using the computer is an essential activity for many of us. We use the computer both for work and for games and social platforms. Since the computer is a mechanical component, problems can sometimes occur. One of these problems is that although the central unit is working, no image appears on the monitor. This can have several causes. Below you can find these causes.
Monitor malfunction
Inside the central unit, there is a processor through which commands are transmitted. This processor sends the commands received from the user to the video card so that the image appears on the monitor. In other words, the monitor’s role is to display on the screen the information received from the video card. Like televisions, computer monitors have a limited lifespan. Monitors that have exceeded their lifespan can cause problems. One of the aspects to check in such situations is whether the monitor is functioning correctly.
Video card malfunction
As explained above, the video card is a component of the computer that links the processor and the monitor. If this connection is interrupted, commands do not reach their destination. If the video card is defective, the computer cannot transmit the processor’s commands to the monitor. Naturally, no image appears on the monitor. In such a case, before going to a service center, you can open the central unit and check if the video card is properly seated in its slot. The video card is mounted on the motherboard in a mechanism similar to Atari game cartridges. It can be easily installed. If the problem persists, you will need to replace the video card or request technical assistance. If the central unit works but no image appears on the monitor, the most serious problem is a defective video card. The video card is, after the processor, the most important component of the computer and has a high cost.
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Checking the cables
In desktop computers, the power cable to the central unit is separate from the one to the monitor. It is possible that the central unit is working, but the monitor is not receiving electrical power. Checking the power cable can help resolve the problem. Besides the power cable, there is also the data transfer cable from the central unit to the monitor. If this cable is unplugged or worn out and no longer works properly, this can prevent the image from being displayed on the monitor. This cable is easy to find on the market and you can replace it yourself.
