ok I just got this coolermaster DP5-7JD1B-0L HSF ( http://www.coolermaster.com/products/cpucooler/silent/dp5-7jd1b-0l.html ) but when I went to install it, the fan on the heatsink poped off. I went and pushed it back on top the heatsink and it seems to be staying but because the mobo im using this hsf on doesnt have the autoshutdown in overheat feature (board from right b4 that rule was implimented on mobos) I want to make sure that this is ok or was there another way I was supose to reattach the fan? Thanks!