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ATX power supply to SuperMac S900 adapter?
Posted by: Angelgreat on 2021-09-26 18:27:10 By any chance, anyone knows where to get a ATX power supply to SuperMac S900 adapter? A working UMAX power supply that's compatible for the S900 is getting harder to find, so a adapter to use a ATX supply would be nice.
Posted by: trag on 2021-09-27 09:08:24 @Angelgreat All the information you need to build your own ATX to Umax adapter: http://www.kennedybrandt.com/supermac_insider/support/psconversion.html Ignore the bit about Molex Mini-Fit BMI connectors. They're not compatible with the Molex Mini-Fit Jr line. Let's see.... A few more notes and sources for the AT-style connectors used to connect to the Umax board: https://68kmla.org/bb/index.php?threads/umax-supermac-c-series-cachedoubler.38930/post-421399 There's a lot of unnecessary detail in the first article. The easiest thing to do is to get yourself an ATX Power Supply Extender cable for <$10, cut the motherboard end off, keep the power supply end, and splice it onto the wires from your original Umax power supply. However, the methods described in the article are a bit neater and more elegant.
Posted by: trag on 2021-09-27 09:09:20 Also the archives for the LowEndMacs SuperMacs List contains years of discussion about using the S900.
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