![]() Well, I have made it halfway through February and still presenting an upbeat, good news Spark. Spark! Pro Series - February 17th, 2023 Spiceworks Originals. ![]() Many 12V motors could turn if provided 5V (Like your chassis fans) but that won't happen in a harddrive unless something is seriously short circuited somewhere. The 5V won't bleed through and cause the motor to turn at a slower speed, it's a completely separate circuit (complete enough at least). In 3.5" (and larger) harddrives, the motor runs from the 12V supply. To those suggesting the power supply, this information is not right. If the heads did move over the data portion of the platters, there will be an increased risk of a head crash, because lower rpm should = less head-platter air gap.Since head flying height appears to depend on platter speed, it's very likely the heads will not move over the data portion of the platters if the speed is not exactly what it's supposed to be.The 12 V DC spindle motor could spin when provided 5 V DC, but at approximately half the speed as normal. ![]() ![]() Again, I don't know what I'm talking about but it seems probable that: I researched this a little more because it was interesting.
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