why do you have two GPU's that wont even work in crossfirex..... and them fans man.... so many fans....
I run BOINC to donate my CPU & GPU time to a few university astronomy projects. The tasks that BOINC runs on my PC can run independently on two separate GPUs without having to crossfire them. Also since I don't have a DP cable yet I can't run all of my 3 monitors without the second card (complicated issue). The fans are there since my PC is running 100% GPU and CPU load almost all the time and 2 GPU's heat things up in a not so big case like this. When I launch a game or so want to BOINC will stop the tasks running and free all of the CPU & GPU time.
I don't pay for my internet or electricity (university dorm) so there is no negatives in running BOINC.
ps. Didn't notice you answer before so this is a bit late.