To be honest, I wouldn't touch either one of them.
Get a propper server PSU or a power supply from a well known brand ( EVGA, Seasonic, Corsair,...) .
Remember, PSU is the thing that "feeds" your rig. Do not cheap out with it!
Yikes ... I wouldn't touch either one of those either. Two 850W or 1000W EVGA Gold's will make you sleep better at night.
Oh and go with semi modular. Paying extra for fully modular is a total waste of money, in my opinion. The cable that goes to your board has to be there no matter what, so why do you care if it's permanently attached to the psu or not?
i am not sure i understand what you mean by semi modular...can you please clarify that?