why does my computer monitor keep shutting off

There are several possible reasons why a monitor would turn off randomly. Some of the reasons relate to the monitor while others relate to the computer. If the monitor is staying on, but losing signal (e. g. , the power light goes from green to orange) this is almost always an
and not the monitor. If the monitor power light turns off, then it is almost definitely a problem with the monitor. If you've been away from the computer and the monitor is turning off but wakes up if you click a mouse button or press a key on the keyboard, the monitor is turning off because of features. One reason the monitor could shut off is because it is overheating. When a monitor overheats, it will shut off to prevent damage to the circuitry inside. Causes of overheating include dust build-up, excessive heat or humidity, or blockage of the vents that allow the heat to escape. If the monitor is overheating, it is best to unplug the monitor and let it cool down fully before using again.


Then, if you have (anti-static, for electronics), try to blow out any dust that may be inside the monitor casing. If the room where the monitor is being used is very hot, find a way to cool it down, either by turning on a fan or the air conditioning system. Wait until the room cools down some before trying to use the monitor again. Also, if you're using an older monitor, upgrading to a newer will resolve many heat related issues in a hot environment. Although not as common, if the is loose and is not securely connected to the back of the monitor, it can cause a loss of power, resulting in the monitor shutting off. Make sure the power cord is firmly in place in the back of the monitor. It's also possible that the power connector in the monitor is going bad and not receiving adequate power from the power cord. In this case, it is typically best to replace the monitor instead of having it repaired.


Another reason the monitor could shut off is because of a malfunction in the circuitry. There could be a short in the wiring or some other failure in the circuitry, causing the picture to go black or causing the monitor to shut off completely. In this case, there may not be much you can do other than buying a new replacement monitor. Monitors are usually not economical to have repaired since the repair cost can be more than the price of a new monitor. You could bring the monitor to a computer repair shop to have it looked at, but they are probably going to also recommend replacing the monitor. If the monitor is staying on, but you loose the video signal, it's very likely an issue with the or in the computer. A computer randomly shutting off can also be an issue with the computer or video card overheating or a defect with the video card.


If the video card is a known good video or if the video card is on the motherboard, there may also be problems with the motherboard. A bulged or other failing components on the motherboard can cause a computer or monitor to shut off. I had a similar issue. My last TV had this odd snow in the latter part of its life. I narrowed it down to the monitor or the cable. A reset of the driver always brought the image back to normal. That doesn't sound like your issue does it? The TV died. A moment please. FF a couple months and I get a new TV. TV would mimic your issue. William(who hailed from Ocham) told me to replace the HDMI cable. Issue fixed when I did. You mentioned the GPU temperature. That suggests a card. Does the issue still happen if you plug into the motherboard? You didn't list your specs so I've no clue which CPU you are using or if it has an integrated GPU. It's just a possibility.

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