Hello community! I need some advice and help as a new builder. I ordered all brand new parts and I was following a video tutorial because I'm completely new to this. I took my case standoffs out not knowing what they were or what purpose they served and just screwed my motherboard in the case. My 212 Evo also came with 3 nuts that were the wrong size for some reason, so I couldn't mount my heatsink at all. I wanted to see if everything was hooked up fine, so I booted up the PC and it immediately shut off after all the lights flickered on. So I guess what I wanted to ask was, chances that I damaged or destroyed my motherboard? I read that your PC just won't boot if the heatsink and fan isn't installed, and that also not using the mounts will short out the board. Is it possible that my PC wasn't on long enough for it to be damaged? I'm going to the hardware store to buy some nuts for the 212 Evo, and I might need a new MB too.