4pincable

will adding many fans to my h61mcs mobo will damage or stress my mobo? my pc specs i5 3570 1050ti 8gb ddr3 1tb hdd . i have only 1 4pin chasis fan header i will get a fan hub or fan splitter and connect 4 fans will it stress or damage my mobo pls help me , ill run at max speed if needed too

Hi guys, im trying to use a 450W PSU on a Micro Atx b360M pro vh , but the thing is that i only have 4 pin( in square format) and the 21 or so pin cable . The cpu power cable is a square format 8 pin cable and my PSU dont come with it. Can i use the cubic 4 cable on the 8 pin cpu power input...