hey, i just got my sp-97 today fromexcaliberpc , it looks really cool and ill put it on my rig later tonight, but i cant help but notice that this hs is really dirty... theres some black stuff (no idea what it is ) thats making random spots, and its even stuck on the bottom of the heat pipes and some fins! i want to clean this off, would there be any problems using soap and water (or would that make the copper turn green?) or should i use rubbing alcohol ? also, how the hell am i supposed to fit my 92mm tornado on this thing... do i have to strech the fan clips that far?