03-12-2013, 09:50 PM
Maybe it's stupid question but: you regulate your fans by yourself or it's on automatic? For hash cracking you need to put all cards manually depending on ambient temperature and your case specs. So try to put them manually on ±80% and see if temp grows or drops. Also front fan is blowing air inside or sucking out? Side fans also sucking or blowing air onto cards? with so much fans you can possibly make vertex'es inside case and because of that can make everything even worse because you slowing down card fans and also not giving them enough cool air.