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Show new changes starting from 03:47, 28 September 2026
 
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27 September 2026

     10:36  IBM PS/2 Model 80 Troubleshooting Guide diffhist +6,485 Josh talk contribs (Rebuild against Ardent Tool's three 8580 planar pages: there are three planar types not two, and the -111/-311 models were on the wrong one; 'seven 32-bit MCA slots' and 'one 8-bit MCA slot' do not exist (Types 1/2 have three 32-bit and five 16-bit, Type 3 four and four); the 70 ns memory requirement is unsourced (both documented kits are 80 ns); replace the three invented ECAs with the real ECA 051 (8580 memory parity errors, FCT841 modules at U24/U34) in IBM's own words; '161 - replace DS12...)
     08:59  IBM PS/2 Model 80 Capacitor Replacement Guide diffhist +67 Josh talk contribs (Link the documentation page for each cited manual, keeping the File: link as the direct download)

25 September 2026

      08:54  Hard Drive Maintenance and Repair 3 changes history +3,070 [Josh (3×)]
     
08:54 (cur | prev) +898 Josh talk contribs (P4 verification: cite the hosted SCSI termination and bus-ID material from Pina's Mac II book and High's Troubleshooting Your Macintosh)
     
07:56 (cur | prev) +1,982 Josh talk contribs (cite Apple's Service Source storage volumes inline, and flag the mis-titled Hard Drives file (P4 orphan fix))
     
00:22 (cur | prev) +190 Josh talk contribs (P4 verification: link IBM's PS/2 CD-ROM and SCSI-A technical references, hosted here but previously unlinked from any article)
     08:54  Floppy Drive Repair 3 changes history +2,840 [Josh (3×)]
     
08:54 (cur | prev) +1,679 Josh talk contribs (P4 verification: cite the hosted Apple DuoDisk/UniDisk procedures, the HDI-20 volume and the Dead Mac Scrolls floppy chapter from the drive repair page)
     
07:56 (cur | prev) +925 Josh talk contribs (cite Apple's external floppy Service Source volumes inline (P4 orphan fix))
     
00:22 (cur | prev) +236 Josh talk contribs (P4 verification: link IBM's 3.5-inch diskette drive technical reference, hosted here but previously unlinked from any article)
     00:22  IBM PC Series 300 diffhist +238 Josh talk contribs (P4 verification: link the 6826/8317/8318/8319 hardware maintenance manual hosted here, previously unlinked from any article)
      00:20  IBM PC AT (5170) 2 changes history +119 [Josh (2×)]
     
00:20 (cur | prev) −100 Josh talk contribs (P4 verification: merge the duplicated manual links into one documentation line)
     
00:19 (cur | prev) +219 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 60 2 changes history +88 [Josh (2×)]
     
00:20 (cur | prev) −95 Josh talk contribs (P4 verification: remove the now-duplicated manual link bullet (superseded by the fuller documentation line))
     
00:19 (cur | prev) +183 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 50 2 changes history +101 [Josh (2×)]
     
00:20 (cur | prev) −157 Josh talk contribs (P4 verification: remove the now-duplicated manual link bullet (superseded by the fuller documentation line))
     
00:19 (cur | prev) +258 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 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))
     00:20  IBM PCjr 2 changes history +46 [Josh (2×)]
     
00:20 (cur | prev) −76 Josh talk contribs (P4 verification: remove the now-duplicated manual link bullet (superseded by the fuller documentation line))
     
00:19 (cur | prev) +122 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 PC (5150) 2 changes history +219 [Josh (2×)]
     
00:20 (cur | prev) −79 Josh talk contribs (P4 verification: remove the now-duplicated manual link bullet (superseded by the fuller documentation line))
     
00:19 (cur | prev) +298 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 70 diffhist +217 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 PC XT (5160) diffhist +265 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 80 Technical Reference Oct90.pdf diffhist +1,265 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 80 Technical Reference (May 1988) diffhist +2,660 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 80 Technical Reference (April 1987) diffhist +4,193 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 80 Schematics diffhist +3,769 Josh talk contribs (P4 verification: real documentation page - title as printed, part/form number, edition, contents, honest gaps, what it settles, cross-links)

24 September 2026

      22:21  IBM PC Series 300 2 changes history +534 [Josh (2×)]
     
22:21 (cur | prev) −20 Josh talk contribs (De-link red links to pages that do not exist)
     
22:20 (cur | prev) +554 Josh talk contribs (Fix refs so they render: every bare-URL citation converted to a named, labelled reference and deduplicated, and a References list added)
     22:21  IBM PS/ValuePoint 2 changes history +409 [Josh (2×)]
     
22:21 (cur | prev) −34 Josh talk contribs (De-link red links to pages that do not exist)
     
22:20 (cur | prev) +443 Josh talk contribs (Fix refs so they render: every bare-URL citation converted to a named, labelled reference and deduplicated, and a References list added)
     22:21  IBM IntelliStation 2 changes history +2,246 [Josh (2×)]
     
22:21 (cur | prev) −8 Josh talk contribs (De-link red links to pages that do not exist)
     
22:20 (cur | prev) +2,254 Josh talk contribs (Fix refs so they render: every bare-URL citation converted to a named, labelled reference and deduplicated, and a References list added)
     22:21  IBM RS/6000 2 changes history +1,928 [Josh (2×)]
     
22:21 (cur | prev) −63 Josh talk contribs (De-link red links to pages that do not exist)
     
22:20 (cur | prev) +1,991 Josh talk contribs (Fix refs so they render: every bare-URL citation converted to a named, labelled reference and deduplicated, and a References list added)
     22:15  IBM System/23 Datamaster diffhist +4,891 Josh talk contribs (Fix refs so they render; IBMs own SY34-0171-0 now hosted: the power supply is FERRORESONANT with resonant capacitor C6 and an 800 Vac internal hazard, not linear; add IBMs rail tolerances, ripple limits and per-rail fuses; correct the diskette capacities (0.25 MB and 1 MB per drive, not 1.1/2.2) and the 5246 (up to 2 MB, not 4.4); add IBMs full 110-144 model table; the CRT is 305 mm (12 in))
     22:08  IBM PC XT/370 diffhist +3,544 Josh talk contribs (Fix refs so they render; IBM fits TWO cards not three - PC/370-P in slot 4 and PC/370-M in slot 3, with PC/3277-EM only on older machines and the 3278/79 or Remote Display Terminal adapter as alternatives; add IBMs model numbers (5160 Models 568/588/589), the 10 MB vs 20 MB fixed-disk configurations and IBMs unit specifications; host link is coax not twinax)
     22:03  IBM 3270 PC/GX diffhist +5,635 Josh talk contribs (Fix refs so they render; the 5379 is powered FROM the 5378, not from its own socket; remove the phantom 75-pin cable (62-way bus extender to the system unit, 2 m cables to the display); add IBMs own 5378 internals (Motorola 68000, 128 KB shared memory, +5/-5/+12/-12 V supply, eight logic cards incl up to three bit-plane cards) and the full 5379 specification; Model 016 is 576 KB on a /GX)
     22:03  IBM 3270 PC/G diffhist +5,930 Josh talk contribs (Fix refs so they render; the 5278 has NO mains lead - IBM states it is powered from the 5279; remove the phantom 75-pin connector (cables are 1 m and 680 mm; the /GX link is a 62-way bus extender); Model 016 is 640 KB on a /G not 576 KB (that is the /GX figure); the /G has no APA or PSS card; the 5277 mouse is an option not standard; add IBMs full 5278 and 5279 specifications)
     22:03  IBM 3270 PC diffhist +6,487 Josh talk contribs (Fix refs so they render; replace the invented model table with IBMs own (only Models 070/071 have the 20 MB disk; XMA is 1 MB not 2 MB; Models 024/026 use a Plasma Keyboard Adapter); the host link is COAX not twinax and is point-to-point with no terminator - IBMs test is <1 ohm at the connector; add the 3270 unique error-code to FRU table and the documented false 2801 and false 8505; state IBMs own note that all base system parts are 5160 XT parts)
      21:47  IBM 5120 2 changes history +2,313 [Josh (2×)]
     
21:47 (cur | prev) +36 Josh talk contribs (De-link four red links (bitsavers.org, IBM 1130, IBM 5114 Diskette Unit, IBM Datamaster) to existing pages or plain text)
     
21:47 (cur | prev) +2,277 Josh talk contribs (Fix refs so they render; PSU is two boards - TSR board A2 plus a ferroresonant board A1 for the diskettes with fuses F2/F3/F4 - not a beefed-up linear supply; add the 60-second restart rule (not five seconds as on the 5100/5110); remove unsourced Model F keyboard claim)
     21:47  IBM 5110 2 changes history +4,971 [Josh (2×)]
     
21:47 (cur | prev) +51 Josh talk contribs (De-link four red links (bitsavers.org, IBM 1130, IBM 5114 Diskette Unit, IBM Datamaster) to existing pages or plain text)
     
21:47 (cur | prev) +4,920 Josh talk contribs (Fix refs so they render; PSU is a transistor switching regulator (five rails incl +8.5 V), not linear; processor is slot J2 not G2; IEEE bus verified from IBM logic sheet 445 (24-pin Y3, card K2); EBCDIC claim removed - the word appears nowhere in the 5110 MIM; add bring-up diagnostic card mapping)
     21:47  IBM 5100 2 changes history +6,662 [Josh (2×)]
     
21:47 (cur | prev) −8 Josh talk contribs (De-link four red links (bitsavers.org, IBM 1130, IBM 5114 Diskette Unit, IBM Datamaster) to existing pages or plain text)
     
21:47 (cur | prev) +6,670 Josh talk contribs (Fix refs so they render; correct dimensions (445x610x203 mm, IBM's figures - width and depth were transposed) and weight (50 lb/24 kg) to MIM Appendix B; PSU is a transistor switching regulator with five rails incl +8.5 V, not a linear supply with series-pass regulators; state that IBM never uses the name PALM; cite IBM's own 1977 design paper, newly hosted)
N    21:31  Template talk:Navbox-IBMComputers diffhist +984 Josh talk contribs (Explain the navbox-unwritten convention and how to restore an entry when its page is written)
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