Type C plugs are generally limited for use in appliances that require 2.5 amps or less and are not grounded.
Type E plugs are rated 16 amps and are grounded.
You really want the ground, and will exceed 2.5 amps with the 750W PSU. If you are planning to live in in the building with the type C wall socket have an electrician replace the Type C with a Type E , F, J, K or N socket.
If this is a temp location for you, see if a local hardware store can sell you a GFCI adapter that will plug into type C and accept type E.