Quick update for anyone that might find this interesting or has had the same problem recently. Swapped that garbage PSU with the one being suggested to me the most. Corsair TX650M. All the components seem to be ok. Computer runs like a dream (much less noise than before somehow). Learned my lesson the hard way with all the stress i've been through (although admittedly not the hardest way possible). Thanks for all your help guys!
Thanks for the replies guys. If something has Indeed been damaged let's at least hope that it is the mobo. I'm really afraid about my gpu. Brand new, it cost me 200 Euros. Had it for 3 days.pfff