Mallette wrote:
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Job one, however, is preservation. I need to back up the over 15 year old system drive first thing and have lost all my Amiga skills and references.
A4000 preservation rule #1: Check the motherboard battery!
It's a nasty time bomb waiting to ooze corrosive fluids all over the delicate innards of your piece of computing history.
Remove it totally and replace it with a rechargeable lithium cell. There are several people here who have done this and submitted images of the modification to the gallery.