I am using a Supermicro H11SSL-i motherboard. Besides the usual 24-pin motherboard power and 8-pin CPU power connectors, the board has a 4-pin ATX power connector (circled out in the bottom left of the image below). The motherboard manual says it provides "auxiliary power to peripheral devices". The PSU I am using (Corsair AX1600i) does not have such a 4-pin cable, but it provides 4+4 pin CPU power cables. Can I use one of the 4-pins from the CPU power cable to plug into this connector? I tried to contact Supermicro tech support about this. Their only replied that there is no need to use this connector if there are no peripheral devices requiring power. I am still a bit confused. What would count as peripheral devices requiring power? For example, if I use a PCIe card that does not have its own power connector, shall I plug this 4-pin connector of the motherboard? What is this connector intended for anyway?