Variants of alteration of the cooling system. For example, three models MVR9 (rk3328), MX10 (rk3328) x96mini (s905w). In the body, above the radiator of the processor, a large hole is made and on the sides of the body a large hole is made for the free passage of air. On x96mini had to add a new radiator.   Note need necessarily two holes, one for air intake, the second for exit. This is a very common mistake TV box manufacturers, they sometimes make only one type of holes, wh