Renatas Valatka :
Hello,
I am very keen on building my new pc and I dont know what to start buying first?
Motherboard? Case? RAM? PSU? I think last should be GPU since I build it for gaming. Right?
It depends on what you want to do with the computer. Since this is TH I'm assuming you want to build it for gaming, but you might be going for a HTPC build. Mobo and CP are always what I look for first. And I look based on what the build is for. Looking a nice gaming machine, then a 3rd or 4th gen I5 or I7 with a Z87 or Z77 chip set board is what I would start with. Making a machine for your mom to do her budget on excel and just browse the net than one of the lower end AMD APUs with an FM2 board would be the pick.
Basically my opinion is start with CPU and mobo based on what you think the machine will be used for, and add all other parts (PSU, GPU etc) accordingly.