Almost sure your gonna have problems putting the modular hiper into the P180 case.
The P180 is an absolutely gorgeous case, i love it and its great to work with but it has this unique seperate bay for the PSU. Within is a 120mm fan, the idea being to keep it cool and quiet. However the Modular plugs will be a little too long, although i think it could fit you would most likley have to remove the fan and then it would still be a bit tight.
I used the Antec True power 2 series for my p180, perfect fit, silent and damn low temps in the case