Hello, I am sorry for my English, help to solve just such a problem:
I have a MacBook Pro 13 (2014), sonnet echo express and behold thunderbolt 1 gigabyte gtx 660. installed windows 8.1 efi, all powered from a single power supply 550w, but the system freezes periodically (mouse slows down and then windows hangs). the video card is connected directly. whether it is possible to increase the 25w to echo express se 1, here I attach a photo card: , can anyone tell me some way, once again I apologize for my English, thanks in advance.