Everything worked on my computer but I wanted to clean dust on fan. So I did that, open, clean, close. When I started Pc again, GPU started overheat so hard that I had to turn off PC. It's strange that overheat now, it never did before. I have fan for proccessor and one on POWER (or how it's called in english). What can causethe problem? cables are plugged in as they should be'!!