so i recently vacuumed all the dust out of my computer and cleaned a few parts with alcohol and q-tips. well after that a couple days later it shut down automatically and has not been putting video out put to the monitor. i know the monitor works cuz i plugged it into my laptop. all the fans work but when i turn it on the run very loudly and really high. also the video card is connected to the motherboard. i don't know what to do I've tried every thing.