Help m.2 ssd not showing up on bios

Hello all. First off thanks for the support when helping me build my first Hackintosh. I'm having an issue however my z97 Gigabyte mobo is not recognizing the SSD in the bios. It doesn't show as a Bootable drive. Here's a list of things that I've tried a lot of settings with no results, can anyone help me, please?

Is it connected to Sata 0 port on the mobo? Or is it connected to another port, like SATA3_0 or SATA3_1, etc? Does it boot when using the UniBeast USB stick?

It doesn't show up as a bootable drive which is funny because I booted out of it for months and it stopped but I don't know if it had to do with Q-flashing the Bios to the latest update. I've tried rolling back with no success.
It's directly on the Mobo slot for M.2, I'm awaiting a PCIe adapter, I heard that that could possibly help and also improve speeds. I'll update! thanks.