Struggle installing kraken x53 liquid cooler

Hey guys, so I just got an x53 liquid cooler and the cooler doesn’t seem to want to sit on the standoffs. I’ve tried using every stand-off in the box, and only one fits on the stock and backplate. It’s as if the bolts simply aren’t long enough. Form videos I’ve seen they all have different standoffs then I do. Can anyone help me figure this one out?