So I received and tried to install the h105 yesterday, people saying its an easy and short install. So I have the 400r and the i5 3570k and read the whole instructions thoroughly but when I tried to install the block the bracket was still extremely loose. Turns out I guess I was using the wrong pictured standoffs even though they look almost identical. So when I replace them with the right standoffs they are still loose. Theyre so loose that I don't even want to try to install the pump again but no matter how much I try I can't get the standoffs to be firmly seated. I tried many things but it still wasnt fixed so where do I go from now? Any help would be greatly appreciated.