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by rzzzt 234 days ago
Pin 3 on the power connector used to be constant 3.3V, but its purpose changed to keeping the drive in a low-power shutdown state for enabling e.g. staggered spinup: https://www.tomshardware.com/news/hdd-sata-power-disable-fea...
1 comments

Yep.

And when that's a problem, it's fine to just cut and insulate 3.3v wire that feeds the power supply's SATA connectors.

After this modification, the machine thus becomes compatible with all SATA hard drives, whether old or new or shucked or whatever.

(Not much (if anything) in SATA land ever used 3.3v, and it's completely likely that nothing ever will. AFAICT, that voltage was deprecated with the release of revision 3.3 of the SATA specifications, from nearly a decade ago in February of '16.)