Yesterday I opened my machine to dust and clean it. Was extra careful with it. After re-assembling it and booting it, I got a "cpu fan error sceeen". So I tried moving the CPU fan around, getting it to a new position, and now I'm not getting any signal input from my computer at all. I've already tried moving almost every piece around, unplugging all the unnecessary stuff, but still no result. Would appreciate some help with this as it's the weekend, aka my only moment of rest of the week.
Are we talking about a laptop? When you power the computer on does the CPU fan spin? Did you verify that the CPU fan is plugged in? If the CPU fan was extremely dusty it might be dead and need to replaced or maybe it just got unplugged from the motherboard. Taking a picture of the board and the CPU cooler might help.
Desktop.