Problem Installing System fan and usb 3.0

my case:cooler master k281
my mobo:gigabyte GA-H61M-DS2 (rev. 3.0)

i got problem when installing system fan and usb

first,my system fan cable cant plugged to my mobo,because the cable hole for my preinstalled fan so big,so how to fix this?

seconde,my usb also got into mobo only support front usb 2.0 and my case usb is 3.0,so how to fix this?

beside that i want to ask,can i install my case fan to my psu using molex cable from psu?
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More about problem installing system fan usb
  1. Best answer
    Your fan can be connected to any Molex connector from the PSU, yes.
    For your USB problem, look into one of these:
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