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Recent content by Lord Nightmare

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    IBM PS/2 Model L40SX - MB damage, help

    I disassembled an L40SX I acquired a while back to repair some main-battery-leakage related corrosion on the back connector panel. When I did, I discovered that one of the components on the MB had, at some point, lost its magic smoke. The system still seems to work, but I'd like to know what...
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    IBM PS/2 Model 55SX - IBM evil

    If you have an IBM PS/2 Model 55SX, please read this post before replacing it, especially with a dallas ds12887A. MikeS: I pretty much completely rewrote this post to be less 'apocalyptic rant about evil ibm' and much more 'what happened to my 55sx when i replaced the dead ds1287 with a...
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    Hunting for the rare 5700051 IBM 5150 bios

    Does anyone here have an IBM 5150 with the original 64k-max motherboard, and the first version (chip labeled 5700051, date 04/24/81) bios rom at location U33 on the mainboard? I've been trying for over a year to track one down, and have had no luck. All the people who owned such machines that I...
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