Hifor the last days a strange thing happened. Every time I start my PC it say no video input and there is just black screen. The mouse and the keyboard is dead too. but every fan in the chase works. BUT when I unplug the power cable from the power supply and then plug it back again after 2 seconds the PC starts again without a problem. Anyone knows what is the thing that cause such a problem?THanks for the help!
your computer might have a virus. Try doing full scan in your computer using your antivirus. If you dont have any computer antivirus, then try using Avira Free Antivirus. Get avira free antivirus from its official website only.
did you check the power cord and socket . because if it is a problem of power supply unit (psu) in your cpu cabinet than the whole system wont start.
I would suggest a check of all the wires if you have no issue it might be due to the power supply.
I would say it's because of the mainboard. About 3-4 months ago, I had problems just like that. I didn't unplug the power cable actually. I switched off the plug for the PSU. Basically, it works the same way: stop provding power to your PSU. However, my PSU was new. I had bought it 2 weeks so chances that the PSU was broken is very small. And a month ago, my computer was suddenly dead. Yes, dead, R.I.P, gone. When I tried to turn it on, it was just a black screen. Eventually, stop provding power didn't work anymore. Now I have to use my mom computer and wait for my dad to buy a new one. So be careful, it maybe PSU or the mainboard problem.
