Just realized Sabertooth X99 has the option for Pickup and Return service. If you register it when purchased... Which i didn't do since I didn't even know what the hell it is till now. It's a service offered to server components where they just replace it the next day without questions asked. If I knew that, I'd already have a new Sabertooth X99 in my system by now... Ugh.
Yeah, got a reply from the center offered by ASUS and yeah, they don't fix mobos. Back to square one. It's also dumb that mobo doesn't have serial number on it, you need to look for a box which was stored somewhere so I had to dig it out first...
I think next time, I'll be going the route I used to be on in the past. Buying cheap components and overclocking them till they start to sweat hard. And then OC them some more. If they die you just throw them away and buy a new one. I frankly didn't expect so much confusion, problems and complications with a +400€ product. ASUS, get your shit together, the Support/service pages are a clusterfuck of useless information.
Also glad I bought a new mobo already. I'd go insane just using laptops that can hardly run any game...