coius, I appreciate your input. But you are mistaken. If you read through my previous posts, you will see that the data on the 80GB spinning platter drive inside my Wallstreet (the drive that came with the Wallstreet when I bought it) showed data errors when I tested in Apple's Disk Utility under OS 10.4.11. (I think that first error was an "invalid sibling link" error.) And even after using DiskWarrior 4.1 on that same spinning platter drive (despite DiskWarrior having given its "directory" a clean bill of health), Apple's Disk Utility still reported an unfixable error, although it was different that the first error I got. And so, I could never get my internal drive fully repaired, yet there was some software on that internal spinning platter drive I wanted to backup. And I thought I could copy it off cleanly using SuperDuper. But alas, after clone to my external SSD via USB and SuperDuper, I scanned my SSD with Apple's Disk Utility and it gave me the same error. And then I ran DiskWarrior on it and found that another error (unfixable) still was showing in Apple's Disk Utility.

So I don't know if the data was so corrupt it could not be repaired. Or if it is the case that the CPU upgrade in this Wallstreet is causing all the data to become corrupt? I honestly don't know what's going on, but the SSD is not bad. I am quite confident about that (one of the few things I am confident about).

So again, I don't see how a bad PRAM battery could be causing all this chaos, but to eliminate that variable, I will swap out that battery tonight (painstakingly, from what I see on iFixit). Then I may consider formatting my internal drive and reinstalling the OS. I really would like to get OS 10.4.11 back on it because that OS makes it more useful. But in the end, who knows, maybe I will only get OS 9 to work, on a single partition.

Any further thoughts would be appreciated.