my setup is R730, with 2x E5-2697A v4, 16x 16GB ram, 8x WD 0F38459 , 2x Intel P4800X, 2x WD Red SA500, PERC H730P, Nvidia A5000, Dell R887V .... i think that most of the parts that add to consumption. Usage it is typically around 250-300W
Im planning to add 10x M.2 drives also, so this will probably add to the consumption also