Maximus Formula SE - Power Off Issue

Since the first time i tested this board, i found that everytime i shut down my computer, it powers itself back on automatically for 5 seconds and then powers off again for good. I've tried looking at different BIOS settings but no luck. This is getting annoying.. Has anyone else have had this problem before?

I tried contacting Asus support but they don't seem to care much, they keep telling me to make sure everything's seated properly.. (which it is..)

Any ideas would help