I just bought a new Asrock ITX FM2A75M-ITX motherboard for one of my builds and I'm having an issue with it.

I've connected everything and when I flip the PSU switch, the motherboard will power itself without having to press the power button but it does not post, even when I press the power button it does absolutely nothing. I've even changed power supplies but I get the same result.

Specs of the build

Asrock FM2A75M-ITX FM2 AMD motherboard
4GB 1333Mhz DDR3 RAM
AMD A4-5300 CPU