Got a wee Psion 3mx on Ebay cheap because the screen had lines on it & backlight was wonky. Quick repair, and witness the power of this fully operational 3mx! :-)
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It's considerably faster than the 3a, which is, nonetheless, a stellar wee unit. Even in 2025 I am blown away by how great these palmtop computers are.
I hadn't originally planned on getting a 3mx, but @thelastpsion.com put the idea in my head. It's a definite improvement on the 3c and 3a. Still only 2MB though.
It *might* be possible to upgrade a 3mx to 4MB. Theoretically the circuitry is there to allow it. I'm lucky enough to have a spare 3mx, so I've been testing with a second 2MB chip. It part works - the OS can't see it, but I've got a memory dumping tool that can. I'll get back to it at some point!
That sounds like a good project. I now also have enough parts to reconstitute the 3c that I had to cannibalise to fix the 3mx... it's like upcycling as far as we can go :-) [these are still fantastic machines]
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