ECS P43T-AD3 Manual page 25

Refer to the illustration below for proper installation:
1 Attach either cable end to the connector on the motherboard.
2 Attach the other cable end to the SATA hard drive.
3 Attach the SATA power cable to the SATA hard drive and connect the
other end to the power supply.
This motherboard does not support the "Hot-Plug" function.
Installing the Motherboard
21