its the bios thats giving me the rpm reading
, i've tried contacting thermaltake but they seem to be giving me the run around as to what the evo blue fan speed can go down to , its all very frustrating
It's not a reading from the psu.
In order for you to get a reading, wether from the bios or some other software, there would have to be an rpm cable connected from the psu to the motherboard.
Your psu doesn't have one.