So i got the Xigmatek HDT-S1283 because i saw good reviews for cooling my q9450 however, once i got it, it turned out to be a pain in the ass to mount, i even bought the retention bracket but i didn't know how to use it,mounted it wrong and it fell off before i got the comp running and the push pins that i ended up going with are a pain in the ass to use since the Heatsink is so big. eventually i got it on but wasn't mounted perfectly and it overheated my CPU. I still have faith in it though, i was just wondering how you mount it with the Retention bracket and if i can use a little bit of artic silver thermal compound 5 with it, since i used the thermal grease it came with and had to send my processor back to newegg for a new one. Thanks.