So I m planning to build a PC. But I have few confusions in my mind for selection of motherboard. I m new in this field so could anybody please tell me 1)Side by side comparison of AMD and Intel processors. 2)Different types of sockets I can use with these processors One another question is I have a motherboard which have one 4-pin ATX 12 volt socket and one 20 pin connector coming from power supply. So for some reason my computer fan is not running on this motherboard. So I replaced this one with another motherboard which does’t have ATX 12 volt 4 pin connector but have socket for only 20 pin connector. So when I checked its 20pin connector with a power supply tester it shows no voltage on 12volt one. All other voltages are fine. So I connected my CPU fan with motherboard on only one available cpu fan 3 pin socket. But I m wondering from where my fan would get power supply if its not coming thru 20 pin connector. Please advice.