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Can a bad drive destroy an external adapter?

This is a discussion on Can a bad drive destroy an external adapter? within the Hard Drive Support forums, part of the Tech Support Forum category. I swear, i have two disk drives now that, if i plug them into an SATA to USB adapter, the


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Old 03-19-2020, 03:14 PM   #1
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I swear, i have two disk drives now that, if i plug them into an SATA to USB adapter, the adapter no longer works with any drives thereafter. I'm afraid to run a complete experiment, because i only have so many drives! There are a lot of potential GB of storage to fry if i try to run a bunch of drives through.

Any hard disk gurus/engineers out there who can tell me if this is the case, or if i am just having a string of bad luck with multiple drives?

Thanks for any insight!
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Old 03-20-2020, 12:51 AM   #2
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I would say it is the other way around. The USB Adapter is at fault. Get a cheap USB Adapter and plug a known Good drive, like a CD drive oir small capacity HDD, in to the new USB adapter, if that works, then put in your "Bad" drive into adapter, that probably won't work, then plug in the CD drive again. If that works, you know it's not the USB adapter that is the problem.
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Old 03-20-2020, 06:42 PM   #3
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Check the TVS diodes on the "bad" HDDs. If either is shorted, then that could explain the failures in the adapter. However, one would then have to ask, how did the diodes come to be shorted? A shorted TVS diode means that the drive was overvolted, so the culprit could be the adapter's power supply.

TVS Diode FAQ:

https://www.hddoracle.com/viewtopic.php?f=100&t=86
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