Look, may I just say that not everybody who comes across this will have done extensive googling. For all we know someone might find this before being told to pull the battery. In addition not everybody has a soldering iron or knows how to use it; this can lead to people desperately trying other ways of getting it done and that can result in damage. Even people who can kinda wield an iron may not be very experienced and tend to overheat parts.
I would suggest that you instruct to pull the battery first and then break out the soldering iron as plan B. Just to cover all bases.
In addition I am not trying to be a dick..
But I generally advise against dinking with random jumpers. They are on the board for a reason and if you need extras then grab one from a dead drive or dead board. Better yet remove them from dead drives and boards before you recycle them and keep a stash of jumpers, both the larger common ones and also the ittybitty ones they used to use on old SCSI drives and whatnot.
I'm not sure how that isn't being a dick but I'll take your word for it.
But really, would you expect pulling out a jumper from a board would trip this, causing the board to not post? I assumed when I put it back it would be the same, it didn't have power.
I'm trying to NOT packrat my hardware these days, its rare when I actually need a jumper.
I guess I maybe have too much faith in some people, this is a out of warranty nothing else works fix, fix. I figured that was obvious when I posted it, but maybe I shouldn't assume anything.
But, I don't know anyone willing to solder a wire onto a board before they have tried EVERYTHING else possible? If you are reading this reader, and you are that person, TRY EVERYTHING ELSE POSSIBLE FIRST, PLEASE. But if it doesn't work. Soldering that wire WILL work.