we dont know what you want, so just keep looking to you find a site that does have what you want. office depot, walmart, staples any place you know that sell office furniture
normal desk chair, just check amazon. you dont need a big and tall chair but you can use that in the search bar on amazon and find plenty that handle 350+ lbs
now if you want the racing chair styles i doubt you can find one that cheap
try removing the video card and changing setting in bios to on board video and see if that changes anything. if nothing else you will know if its the video card or its drivers
i would go for cryorig H7, its just as good as the hyper 212 evo if not better but h7 has great ram clearance but can be hard to install unless you take the mobo out of the case
i have it but trying to understand what some of the temps are. gpu and HD0 i dont know but whats temp 1-3-3 (no clue why there's 2 3's listed and not a 2) and core showing temps for.
using a fx6300 cpu
matters if u want more than just a gpu slot also depends on size of the case. matx case then matx mobo, price difference isn't that much. if that difference in price is an issue then your not ready for it
check newegg or amazon