Question sata 1 tb hard drive

Apr 18, 2025
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Greetings. Trying to figure out why hard drive just goes from bottom to top over and over, not stopping to attempt read in between. It is a Toshiba 1 TB hard drive that came out of my Moms All in One HP. I even bought a second hard drive same model as a donor and put the old platter in it, but it still does the same thing. Bounces back and forth from outer edge to hub then back over and over. Any suggestions? Also I should mention I see no signs of physical flaws on the platter.
 
Greetings. Trying to figure out why hard drive just goes from bottom to top over and over, not stopping to attempt read in between. It is a Toshiba 1 TB hard drive that came out of my Moms All in One HP. I even bought a second hard drive same model as a donor and put the old platter in it, but it still does the same thing. Bounces back and forth from outer edge to hub then back over and over. Any suggestions? Also I should mention I see no signs of physical flaws on the platter.
You had 1 bad drive.

"I even bought a second hard drive same model as a donor and put the old platter in it"

Now, you have 2 bad drives.
 
I don't think I've ever heard/read someone diagnose a hard drive as fully functional because they completely disassembled it and couldn't see any visible flaws on either side of the platter.
 
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Greetings. Trying to figure out why hard drive just goes from bottom to top over and over, not stopping to attempt read in between. It is a Toshiba 1 TB hard drive that came out of my Moms All in One HP. I even bought a second hard drive same model as a donor and put the old platter in it, but it still does the same thing. Bounces back and forth from outer edge to hub then back over and over. Any suggestions? Also I should mention I see no signs of physical flaws on the platter.
Congrats, you have two dead HDDs now. It couldn't have been platter's fault but most likely control board/controller or heads. Just by opening disk's cover is enough to contaminate it, it has to be done in controlled dustless environment. Changing platter(s) also means it and heads have to be realigned using special equipment as heads float over platters only when it's spinning at distance of few microns and any time they touch platter they get damaged. Not even prorfesional services that repair disks would change them as it's pointless. In order to retrieve data they may put them in a special machine, not in another or same HDD.
 
In order to retrieve data they may put them in a special machine, not in another or same HDD.
There is no "special machine". That's just another Internet myth that won't die. The only time a pro will transfer a platter is when there is a problem with the spindle motor. The platter will always be transferred to another HDD in the same family.