I have a HAF XM case. Top 200mm fan became noisy. Had it replaced under warranty. After a few weeks of no problems, the new fan is making noise (after turning on system in the morning, it makes harsh roaring sound for a few minutes.) I want to get a new non-Coolermaster fan, but from reading reviews on various ones, it seems 200mm has no standard size so not sure if they will fit - people warn to make sure it will fit your case before getting one. Anyone confirm if a there is a non-Coolermaster 200mm fan to fit the top of a HAF XM case?