My X370 Taichi MB went tits up, and rather than waiting for the RMA process, I decided to just get a new MB and RMA later. While looking, I noticed that the X470 was not all that much more $$ than the X370 so I decided that I'd go with the X470 since it would be a bit of an upgrade. I'll be using my Ryzen 7 1800x on the board. Now, the problem/question. In addition to the 8-pin 12v CPU connection, there is also a 4-pin connection. The manual clearly states to plug in the 4-pin as well as the 8-pin. Now, I looked and I don't have a 4-pin cable, nor is there any provision on my HX1000 PSU for one. 1st question: Is the 4-pin really necessary for the MB to function, or will I have to find a 8-pin to 4-pin cable before I can use the system?