Revision as of 11:58, 18 May 2024 view source Retroand (talk \| contribs) Bureaucrats, Interface administrators, Administrators 666 edits No edit summary ← Older edit		Revision as of 09:53, 6 June 2024 view source Retroand (talk \| contribs) Bureaucrats, Interface administrators, Administrators 666 edits →‎Power Supply Unit Newer edit →
Line 113: [[File:IBM 5322 Power Supply.jpg\|thumb\|right\|alt=IBM 5322 Power Supply\|IBM 5322 Power Supply]] The power supply of the computer is a heavy block which consists in a linear supply that outputs +5V, +12V, +24V, -5V and -12V. Its connector is a 12-pin molex structured in three columns and four rows. Other than the voltages, it also provides with a "power good" signal as posterior IBM computers would, such as the IBM PC. The first IBM PC prototype used the same connector and possibly the same pinout. Adapting an ATX supply to feed the main board is possible and relatively easy to do (actually, it is recommendable when testing the system in a bench). When the connector transitioned to the PC it was linealized but maintained all contacts present in the Datamaster power supply connector, including the key pin (N.C.). The change might have been motivated to reduce friction when attaching/deattaching the cord. == Logical Description ==

IBM System/23 Datamaster: Difference between revisions