Let's start from scratch. Every SATA HDD (or device) needs a power cable and a data cable. The power is obtained from the PSU and the data Cable (SATA) is plugged into the HDD and the metal clip end is plugged into the motherboard SATA port, and that SATA port is enabled in the BIOS.
After doing this, if the HDD does not show up in the BIOS, then a) the HDD is bad, b) the SATA cable is bad, c) the SATA power plug is bad, d) the SATA port is not enabled, e) the motherboard is bad.
Make sure that the SATA cable is plugged in and the fit is correct (not loose).