Saturday at 05:12 PM1 day I'm certain most of you will know this, and I'm certain it will have been addressed before, but in case someone can benefit.... The cheap drives (lol) that we (used to) get from retail outlets and shuck the externals.... I transplanted all of my server's guts into a new chassis and MB and 1/3 of the disks wouldn't spin up. After a couple of days of troubleshooting and research, turns out the 3.3v applied on the SATA connectors cause a PWDIS drive (most shucked and some enterprise) to remain in a "power off" state. Removing the cable nearest the "L" notch on the SATA power connector worked, and I modified all of the SATA power cables coming out of my power supply at the power supply side so I can use splitters without having to worry about modification. Pass only 5v and 12v to your disks.... Esp if they're shucked. None of my WD a and couple of my Seagates would spin if that cable was present.Reason I found it in this instance: i moved from three 5-bay 5-in-3 5.25" cages to a chassis with 15 3.5" bays where each disk is now directly connected to power. More of a PITA but better temperature control. Apparently the cages' power backplane paths removed the 3v signal completely.YMMV, HTH
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