1: I know some places it's common to refer to the computer itself as the CPU, but the CPU is a single component within a computer. It's an important distinction to make if you're going to be able to effectively communicate with people about getting this fixed
2: Your symptoms are classic of a bad caps (google it) problem which means you need a new motherboard. So if the unit is under warranty at all, make it the manufacturer's problem to fix, otherwise you probably want to get someone else to do this. Replacing a motherboard means taking virtually everything out of the computer and putting it back in with the new board. It's not a simple procedure.
Hello,I just want to gather some advice here on the status of my computer before I proceed to the next step.Right now at the moment,when I switch on my cpu,the fans and lights start to run but the monitor screen stays in sleep mode,like as if it is not connected to the cpu.I've tried changing the CPU<>monitor wire but it doesn't help so I guess the problem lies with the CPU.Also if I try force shutdown by holding the power button,the CPU would try to start up after a few seconds
A few hours before this problem occurred,I was using slightly wet q tips and tissue to clean the dust of the fans inside of the CPU.
I'm not sure but I heard that it could be a problem with the power supply unit