For a quick improvement with very little effort , you might want to take out that top right fan assuming it ' s running exhaust . It ' s exhausting some of the coolest air in the case , not creating additional airflow over any heat sources , and with 3 exhaust and 2 intake fans you probably have netnegative static pressure . Generally it ' s advisable to have at least 1 more intake fan than exhaust specifically to create positive pressure , so that any little gaps or openings in the case that may not have dust filters have air flowing out , not in . If it ' s already intake , I ' d slide the front fans down and try to fit it there , to get some more static pressure in the basement and push more fresh air to the GPU through those vents . It ' d also make the front fans more effective by uncrossing the streams heh