Well, the drive won't spin up at all. It was in an external enclosure, and the wrong adapter was plugged into it. HD Sentinel realizes a drive is present only if I boot up my laptop with the drive connected to an adapter. Even then though, it has some basic name for it with no specs or readings whatsoever (ASMT with a bunch of numbers showing up with nothing else).
Disk Manager sees a drive not initialized, and every time I try to initialize, I get a Cyclic Redundancy Error. CMD eventually saw a drive, but I think only 500mb instead of 500gb. It would let me clean the drive (supposedly) but not convert to mbr or gpt. No details showing up beyond that.
The data is very important so I'm looking to replace the pcb, I don't know what else to do. I realize now I need to refer to the number etched on both the board I have and whatever board I'm looking at as a replacement. The process is more tedious than I thought it would be.
My drive is a WD Caviar Green @ 500gb, from 2008 I believe. I was told that boards from the following should be compatible with my pcb number (2060-701444-004 REV A)
WD800AAJS, WD1600AAJS, WD2500AAJS, WD2500AAKS, WD2500AVJS, WD3200AAJS, WD3200AAKS, WD3200AVJS, WD4000AAKS, WD5000AAJS, WD5000AAKS, WD6400AAKS.
I did recently buy a board from another Caviar drive from 2016 with the pcb # 2060-701537-004 REV A
I'm no rocket engineer, but those numbers looks pretty damned close, as do the drive models (WD5000AACS-00ZUB0 @ 500gb vs WD6400AACS-00G8B0 @ 640gb) hopefully that works. Otherwise, Kijiji will hopefully yield a suitable replacement drive.