I have an old hp pavilion hpe computer with an i7 2600k in it and a gtx 460 se. All are fairly old but it gets the job done for gaming. I recently bought a gtx 1060 6gb OC from Asus and when I installed it with only one of the 6 pins and started the pc, it stayed at the startup menu then made 1 beep, significant pause, then 1 short, 1 long beep. I looked up the beep codes and it says ram but I reseated them and it still used the same code. I was wondering if you need a power supply with only one 6 pin