I wanted to redo the cable management in my case and wanted to improve it slightly. My current power supply is an XFX Pro650w XXX edition (seasonic rebrand). This is a semi-modular power supply so I wanted to replace the original short sata power cable that connects power to my hard drives with another one I had so I can route it to improve cable management. I had some extra cables laying around from a Thermaltake Toughpower Gold 750w power supply so I tried to use a cable that came with it instead of my shorter XFX cable. Anyways, my computer wouldn't boot so I troubleshooted and found out the power to my hard drives was the problem. They no longer show up in my bios, even when using the old XFX cable. I never heard a pop, didn't see any smoke, and there weren't any smells from the hard drives or computer. I also tried putting these hard drives in a different computer and they still were not detected whatsoever. When I feel the hard drives, they do not seem to spin at all but I can feel the logic board on the hard drives getting hot. I did some research and found out modular psu cables are not cross-compatible. So my question is, can I somehow recover my hard drives with my precious data, or are they gone for good?