I began the transplant by swapping the PCBs on each hard drive. When I did, the clicking noise miraculously stopped as the original drive powered up flawlessly and the clicking noise started on the donor drive (which confirmed that the PCB was in fact defective). I was very thankful that it was only the PCB that was defective and not the read/write head.
The next step that I took was that I swapped and soldered the ROM/NVRAM chips so that the original hard drive with the donor’s PCB ended up with its original ROM/NVRAM chip. I was ecstatic when my original hard drive was detected by my computer after being powered up but my heart dropped when I saw that the entire hard drive (that had 998GBs of irreplaceable files on it) was empty.
I have run two data recovery programs (Recuva and Puran File Recovery) on it since and have become even more confused. The two programs recovered only about 68 files, which were unexplainably the files that I had originally written to the donor hard drive while testing it out. Somehow, files that I had written to the donor hard drive and then deleted were being detected on the original drive after I swapped the PCBs. This doesn’t make any sense…
How could files from the donor hard drive show up on the original hard drive? Is there any data stored in the PCBs? And more importantly, how do I attempt to recover the data from my original hard drive? Is there any hope of data recovery since I have not formatted or written any files over my original hard drive? Are there any programs that you could suggest that might work?
In closing, I wanted to make it known that while I have certainly learned my lesson since this happened (as I have cloned all of my hard drives so I will never be in this position again), I would still really love to recover the priceless files that were on the defective hard drive. I welcome any advice that you might have for me to help me find those files.
Edited by csnyphoto, 06 July 2013 - 08:43 PM.