Hi I was planning to buy a new case to upgrade to from my old case but I am afraid that the stock rm750 watt power cables maybe to short to run to my motherboard and graphics card. If I buy the 900d will my rm750 be able to be routed with out extensions?
Your power supply will work fine and the cables will reach , there may be the need for one extension and that would be the CPU socket power cable which would have to run from the bottom all the way up the backside of the motherboard to the top of the board.