1. you need some reasonably hi tech equipment to rebuild Hard Disks >>> (not a home or shop procedure)
2. just replacing logic board >>>999 times out of 1000 won't work ( Board and firmware difference).
3. if they are not detected in bios
you just have a collection of Scrap ( probably)
Sorry, I must not have been clear. I did not take the HDD's apart, I took computers apart and harvested the HDD's that did work. I have since swapped them in and out and screwed with them in windows so now that they seem to be screwed up. If I screwed them up using windows, logic dictates that I should be able to unscrew them up. Problem is, I was/am trying to learn and IDK what I did to any of them. IIRC I was trying to format them and screw with the partitions using disk management. (I had to pause and remember how I screwed them up and what I was trying to do with them at the time). I also remember exploring the file types.
They were used when I got them and I don't expect to be able to use them for more than storage. I currently Have like 5 or 6 hard drives that I have screwed up . If some or all of them are just dead I am not out anything, but I am not ready to toss them just yet.
“Probably” worked, or did? You’re talking about 7 different hard drives — we’ll need a better idea of what each of them went through, individually, to isolate issues.
How did you screw with them? There could be so many different explanations for their disappearance, especially if they were all working before... Anything from driving too many off of a SATA PSU cable, a failing motherboard header, a bad cable, messing with mount options or drive settings — never mind issues with the drives themselves.
After much hard work remembering, I remembered what I was doing when I screwed them up!
I was using the Disk management tool(?) to try to format them. I think I was trying to remove partitions since I wasn't going to use them for operating systems anymore, AND I was exploring file types.
I say probably worked as I don't recall keeping any bad ones.
Sorry it took so long to get back to you, my thinker is slow and needs an update.
