Just built a new PC with ASUS Sabertooth z77 MB and a Cooler Master Hyper 212 EVO. Every startup begins with a "CPU Fan Error! Press F1 for Setup". I enter setup and all fans are running normally except the EVO. No matter what, the EVO runs at a constant 600 rpm (minimum rpm the fan can run) regardless of CPU temp. Tech support said "just disable the error message", but that seems like a bad idea. I'd rather my CPU fan actually adjust rpm's according to cpu temp. Any thoughts? And, yes, I have the fan connected correctly to the appropriate header.