I'm curious about something... and I don't know either way. So'd I thought I'd ask you people for advice. Does anyone know, would removing the manufacturer's heatsink from a videocard, void the warranty? Cause I'm considering purchasing some passive heat-sinks for both of my ATI HD3870. The objective is to reduce the noise level, the bleedin fans on those cards annoy the hell outta me... I swear, together they make more noise than the actual system, even with the front coolers running!! Also.. would users who've moded their cards like to share with me, their heat-sink of choice? Preferably the fan-less variety.