here´s the deal, i built my computer 2 years ago, and hadnt done any cleaning all that time (yes i know, bad me) but just today i decided to clean it up a bit.
took necessary precautions (static and nothing that could cause any kind of discharge), i cleaned it up (unplugged everything, cleaned it up, plugged it back in (everything in the correct spot, already checked it multiple times) and put the PC back together.
now here´s the problem: it turns on, gets to the loading screen in which i choose the OS to boot up in (sometimes it doesnt even get that far in) and just shuts down. i dont know where to start checking for problems or what to do even... plz somebody help?