I recently put a pc together. At first it wasn’t booting properly but I connected it to a video output and took some other steps which aren’t important. The important thing is that it booted. I assumed that what I had wrong was a front panel cable which was slightly out, but when I went to boot it later, it wouldn’t. I discovered that the only time it boots and the fans spin is when I am unscrewing one specific screw from my motherboard which is located near the cmos battery. And it only boots for a split second. I can recreate this by pushing down on the motherboard a little and letting up. It is clear that a release of pressure somewhere in the motherboard is somehow allowing my computer to boot for a fraction of a second. Besides this I can’t get it to boot at all. Does anyone understand this phenomenon and can anyone help me boot my computer? Any help would be appreciated, thanks.