Actually, the connections on the cable harness appear to be good as well as all the capacitors. They are not expanded and they are not leaking--and no, I am not certain.
I did not consider that it might be a board issue because I sniffed the board, there were no unusual odors when the system is powered up. Visually nothing appeared burnt.
The failure occurred randomly after functioning for 4+ years. It has always been connected to an Online UPS that supports AVR, and Pure Sinewave on my server rack.
I am not proficient at soldering, nor do I have a microscope, soldering iron or any of the required accessories to attempt a repair.
For testing purposes, yesterday, I supplied power using an external power source from a USB enclosure and it worked. SATA Ports 1 and 2 are both functional, it is definitely related to power.
I am meeting with my CEO tomorrow to discuss purchasing a new NAS type system. Leaning towards an HPE MicroServer Gen11. Going from a fantasic little affordable unit to an actual server that is going to cost around CAD$4,000 (price includes HDDs). YIkes.
Thank you to everyone that took the time to read and reply though. I appreciate you, your time, and your suggestions. I was hoping I could just buy a cable and move on lol.
