I was so flummoxed, I went back for a third look. No question, all the white stripes with a negative sign on them are on the Opposite side to the white semicircle.
Looking on the web, I now see the 1.5 gig I've been using for years, can't possibly work. I gig max.
The thing is, this little HP is astonishingly well built in terms of case structure, and indeed is reasonably fast - considering. It is almost perfectly silent, the fan only giving a burst during startup. It then cruises, despite the room being at 80 f most days.
Using this much higher spec Foxconn board and a new drive is like being a visitor in a strange land. I want my little HP back.
Anyway, the caps wont be here for a few days, as they have to be shipped from the real world to this cactus infected oven. One last bang before bedtime.