Question Computer getting power, will not shut off unless unplugged, but will not show display ?

Jan 19, 2021
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Ok so my PC won’t show any display on the monitor, and it won’t turn on/off with the power button. When I plug it in automatically all the fans and lights turn on but no display. I fixed it once by removing and reinstalling the cmos battery and it works great for a week, then I unplugged it by mistake and now the same thing is happening. Any suggestions would be greatly appreciated. Thanks
 

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