Can't detect 32GB mSATA SSD caching device in BIOS

32GB mSATA SSD installed on a Dell XPS 18 cannot be detected in BIOS.

Events prior the issue:
- User disabled Intel Rapid Start Technology, lost the hibernation partition, and lost some component drivers.

- Re-installed windows to start from scratch and to ensure all system files were intact. (All personal files and programs were backed up).

- Re-installed all necessary drivers except for Intel Rapid Start Technology.

- Each time I tried to install IRST, a message kept popping up saying, "Your system does not meet the minimum requirements for this software" or something like that.

- Purchased support from Dell, their technicians couldn't re-install IRST because they found out that the mSATA SDD was not being detected. They noticed this from when they installed Intel Rapid Storage Technology and could not find the mSATA device their. Also, the "Acceleration" tab in Intel Rapid Storage was not available, and was instead replaced with the "Performance" tab.

I posted this issue here a few weeks back, and I am now realizing that the questions I asked before were wrong, which is the reason why I was getting nowhere. From my understanding, the 32GB mSATA SSD is used by IRST for caching purposes, and which is where the hibernation partition should be. And the reason why it kept saying "Your system does not meet minimum requiremets", whenever I was trying to install IRST is because the mSATA could not be detected.

Is the mSATA SSD not being detected because of a hardware failure or is it because of a setup issue? I have reseated the mSATA SSD but to no avail. I really don't want to spend for a part that really only needs configuring. All input are very much appreciated.