Shut downs

Hello, Firstly, hopefully this is in the right place and apologies if not. My PC recently had a dead power supply which stopped even turning on, which was then RMA'd, after getting a brand new PSU given to me, only a day later I started experiencing the shut downs which were easily repeatable...

Simply put I'm not sure exactly what heatsink/cpu cooler to use since I'm building a new pc for the first time and this is what I have so far and was planning to buy. I don't really have a budget on parts as long as its not to much. Any and all advice on changing parts of my build is really...

There are a lot of drivers and programs available for the motherboard in the setup program. Only problem is I have no idea which ones are necessary. It be great if you guys tell me which ones are.