I have my 2500 at 13.5x166 = 2.25. My case temp is 27, CPU IDLE/LOAD = 32/37. Are these almost too cold? I was going to get a TT Volcano 11 or a Zantec Aeroflow, but I don't think I need them...? Also, once I get my 3500 and start the FSB OC then I will notice the temps climb, correct?