Reduced to clear! (normally $139) The EK-FC970 GTX ACX is a high performance full-cover water block for EVGA non-reference design NVIDIA GeForce GTX 970 series graphics cards. This water block directly cools the GPU, RAM as well as VRM (voltage regulation module) as water flows directly over these critical areas thus allowing the graphics card and it's VRM to remain stable under high overclocks.