i got a ti4200 and the hsf is held on with some thermal paste... no clips at all. i tried to gently pull it off but it was stuck on there so i ran quake 3 for about 2 hours in hopes of heating up the paste but it didnt make a difference. its must be glue because its so stong. ive read about putting in the freezer but ill do that as a last option... any other way of taking it off safely?