fy82538 :
I have been having the same problem but the end of the cable that is labeled with +p led and what not goes on the right side of the front panel (consult the manual, look for the motherboard layout it lists everything on it) but i dont know what the other 4/6 is for since its too short to connect to anything else and id need another cable
Package contents
Check your motherboard package for the following items.
Motherboard
Cables
Accessories
Application DVD Documentation Others
1 x
2 x 1 x 1 x 1 x
1 x
1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x 1 x
ROG STRIX Z390-E GAMING motherboard
2-in-1 SATA 6Gb/s cables
Thermal sensor cable
Extension cable for RGB strips (80cm)
Extension cable for Addressable LED strips (80cm)
so I believe, the cable that has the 1 and 2 pin connectors is one of the extension cables. once again, does your case have them hanging in the back?