I need expert help. I have an old Lenovo C540 AiO desktop that I am trying to salvage. This model is prone to a failure in the SATA power cable, at the HDD connector end. I have found video guides on how to create your own power cable using a spare SATA power cable and the mini motherboard connector from the original cable.
Unfortuntely, I cut off the original motherboard connector end before I made note of which black connects to which black end to end.
The guy who made the video told me that matching the black does not matter. This seems correct, but I want to get this right and could use a second opinion.
I have looked at pinouts on the standard SATA end, and the blank are just labeled as "GND" but the 11 pin is labeled as "Staggered spinup/activity". I can find no pinout for the motherboard connector.
I have tried to contact a seller on ebay who has torn into this model before to see if he could confirm the original design, but he has not replied since our original contact.
Can anyone confirm that I can connect either black to either black? I don't really understand why they don't just put them in the same order on both ends to avoid confusion.