Case study: An in-depth exploration of one particular case (situation or subject) for the purpose of gaining depth of understanding into the issues being investigated. Not a study of computer cases sry Okay, I've recently installed RAID on my system. However, this isn't about installing RAID. I laid my computer on its side to install the HDDs, transfer files, etc, and had my computer running everything, with Windows installed, etc. I then shut down the computer, closed up the case, and proceeded to put the case upright and boot up. However, once up, the computer won't boot at all. It gets on a restart loop, before even getting into BIOS. Nothing appears on screen, fans come on, HDDs come on, DVD drives start reading.... and after 2-3 seconds, it all powers down. What does someone do after that? Not sure, but I undid the HDDs, and got everything connected except the HDDs. Same problem. Took out everything, and got only the m/b, CPU, RAM and PSU connected. Same problem. Tested the PSU on another computer. No problem. Took another PSU to put on this computer. No problem. Decided that the motherboard is stuffed. Proceeded to remove everything to get an RMA. Just before actually putting the motherboard into the box, with everything else, I decided to power JUST the motherboard, and see if the fans will just stay powered. It did. So then I plugged in the bare minimum, and it posted, like nothing happened. So I proceeded to get my computer back to the original condition, when I had everything connected, same heatsinks, same everything. And it was fine. WTF HAPPENED?!?? Any ideas?