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IBM PS/2 Model 30: Revision history

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25 September 2026

23 September 2026

  • curprev 03:3303:33, 23 September 2026 Josh talk contribs 18,909 bytes +4,256 Rebuilt against IBM's Model 30 Technical Reference and announcement letters plus the ardent-tool planar maps. Three figures were wrong: the 8086 Model 30 DOES have a real-time clock (NS MM58167AN at U16, IRQ2, with the 3 V lithium cell on the RISER at B1, not on the planar); the fixed-disk interface is a dedicated 44-pin I/O channel with the controller on the drive, not ST-506; and the supplies are 70 W (8086, internal sensing) and 90 W (286, switched) - there is no 80 W unit. Also fixed two... undo

23 May 2026

22 May 2026

21 May 2026

  • curprev 22:5822:58, 21 May 2026 Josh talk contribs 14,601 bytes +14,601 Create comprehensive IBM PS/2 Model 30 / Model 50-60 / Model 70-80 page set with full PS/2 POST code reference, MCA architecture detail, capacitor lists, ECA recalls, and SMD electrolyte leakage diagnosis per RTC style guide