Hi, first post here cause i've been wracking my head around this. I'm building my own pc again although last time my power supply came with my motherboard so I didn't need to know/care about it. But i'm buying a Asrock x79 Extreme x79 socket 2011 7.1 channel motherboard I emailed them asking if they could tell me what kind of power I need. I got this back "About the PSU: With general PSU that got 24(20)-pin ATX power and 8-pin (8+8 or 4pin only) ATX12V connector, the system will work." That's probably very useful, though i'm struggling to understand what different wattage makes, and i'm struggling to rack my head around this 8pin (8+8 or 4pin) is. I use ebuyer for all my gear really. I'm looking for a cheapish one, but i'll be using this system for some very high processing demands, so I would like it to be rather quiet, and reliable. Help would be great, and if possible even a link to one that would be suitable! Thanks for reading if you did!