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Show new changes starting from 08:09, 28 September 2026
 
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25 September 2026

     00:20  IBM PS/2 Model 30 2 changes history +156 [Josh (2×)]
     
00:20 (cur | prev) −99 Josh talk contribs (P4 verification: remove the now-duplicated manual link bullet (superseded by the fuller documentation line))
     
00:19 (cur | prev) +255 Josh talk contribs (P4 verification: link the IBM manuals hosted on this wiki that document this machine (they were unlinked from every article))
     00:20  IBM PS/2 Model 25 2 changes history +88 [Josh (2×)]
     
00:20 (cur | prev) −96 Josh talk contribs (P4 verification: remove the now-duplicated manual link bullet (superseded by the fuller documentation line))
     
00:19 (cur | prev) +184 Josh talk contribs (P4 verification: link the IBM manuals hosted on this wiki that document this machine (they were unlinked from every article))
     00:19  IBM PS/2 Model 80 diffhist +260 Josh talk contribs (P4 verification: link the IBM manuals hosted on this wiki that document this machine (they were unlinked from every article))
     00:18  File:IBM PS2 Model 65 SX Technical Reference Oct90.pdf diffhist +1,302 Josh talk contribs (P4 verification: real File: description - document identity from its own title page, page count, honest source note and honest licence block)
     00:16  IBM PS2 Model 80 Technical Reference (October 1990) diffhist +3,394 Josh talk contribs (P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links)
     00:16  IBM PS2 Model 65SX HITR Supplement diffhist +1,628 Josh talk contribs (P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links)
     00:16  IBM PS2 Model 55 Technical Reference (October 1990) diffhist +3,806 Josh talk contribs (P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links)

23 September 2026

     03:33  IBM PS/2 Model 30 diffhist +4,256 Josh talk contribs (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...)
     03:31  IBM PS/2 Model 25 diffhist +2,963 Josh talk contribs (Rebuilt against IBM's Model 25 Technical Reference (hosted here) and the ardent-tool planar maps. Colour PSU is 113 W not 115 W (IBM TechRef; the Canadian quick reference rounds it) and the 286/SX are 124.5 W; the fixed disk is a dedicated 44-pin I/O-channel connector with the controller ON THE DRIVE, not an ST-506 controller or an aftermarket ST-506 kit; keyboard and mouse ports ARE interchangeable on the 8086 per IBM, so the '301 error if swapped' claim is removed; corrected the planar chip...)

22 September 2026

     00:03  IBM PS/2 Model 80 diffhist +14,479 Josh talk contribs (Verified against IBM Technical Reference (Oct 1990), IBM announcement letters 187-051/187-052/187-150/190-055, IBM tech-spec sheet GJAN-43WKBR and ardent-tool planar maps. Fixed: slots are 3x32-bit + 5x16-bit (or 4+4 on the 25 MHz board), not 1x8-bit + 7x32-bit; three planar types, not two, and Type 1 is 16 MHz only; RTC is a Motorola MC146818A with a separate 6 V lithium pack (FRU 72X8498), not a Dallas module; planar memory is two IBM memory-card connectors (4 MB, or 8 MB on the Axx), not 4...)

21 September 2026

     21:51  IBM PS/2 Model 80 diffhist +20 Josh talk contribs (Verification drive: flag unverified component data pending check against a primary source)