Hi. I built up a pc myself. Took a while but got it working. I saw the case was a mess so I took off side panels do I could fit the ODD and screw in the SDD. Now here I come to turn it on and it magically does not turn on. I had windows already installed and was using the pc for good 3 days. I have a z170 motherboard. Now I have a feeling that the screws I had tried to screw in the HDD had fallen out. Could that be a reason it doesnt turn on anymore? On the motherboard, the CPU_LED light stays red, then jumps to the ram led and then pc shuts off. From what i understand, there is an issue with ram.. but how could that be if I was using the system and all worked fine?? Pls help