I am building a quad SLI-setup preferably with GTX-680 GPUs. Also I will have full blown liquid-cooling in two loops. So, guys are GPUs available without the inbuilt fan and heatsink cooling setup?? If I rip off the cooling unit from EVGA or ASUS cards will it void the warranty?? Moreover do the GPU cooling blocks cover the whole circuit board including the VRM circuitry and memory chips or I need to install separate heatsinks for them ??