I have a 24 pin to 20+4 pin power cable for my SST-SX650-G PSU. However, there is 4 pin cable regressing from the 20 pin side of the 20+4 pin cable end with the abbreviation “DST” on the side. Does this cable plug somewhere else on the motherboard? Back into the PSU? I really want to know what to do with this thing so I don’t damage any of my components plugging it into random stuff. Thanks!