Changelog

2023

03 Dec 2023 – 05 Dec 2023

   [1] Files from Hugh Burns
   [2] Files from Moussa
   [3] Outline and part ID by Tomáš Slavotínek
   [4] Photo from ebay seller "on-wing"
   [5] Files sourced from Center for Embedded and Cyber-physical Systems

29 Nov 2023

21 Nov 2023

   [1] Files and information from Christian Holzapfel
   [2] Article HTMLized by Louis Ohland, edited by Tomáš Slavotínek

19 Nov 2023 – 20 Nov 2023

  • P/390 - S/390 Microprocessor Complex page:
    • Added disk images (thx Alexander Paterakis) [1]
    • Added fixpacks (thx Alexander Paterakis) [1][2]
    • Added PDF documents (thx Alexander Paterakis) [2]
  • Roland MPU-IMC - added better adapter photos [2]
  • 8525 Planar - planar FRU P/N correction
  • Added Tecmar MicroRAM 386 page containing:
    • Adapter photos [3]
    • Adapter outline [4]
    • Support files [3]
    • Overview of adapter's features
  • Added Serial EEPROM page containing:
    • General information about the serial EEPROM subsystem
    • List of supported machines
    • List of used devices
    • Info about programming interface and equipment
  • Lacuna Planar page:
    • Added SLC3/BL2 to the outline/parts list
    • Added EEPROM prog. header to the outline/parts list
    • Minor outline corrections
  • Bermuda Planar page:
    • Added EEPROM prog. header to the outline/parts list
    • Other parts list tweaks
  • 9556 / 9557 Planar page:
    • Added EEPROM prog. header to the outline/parts list
    • Other parts list tweaks
  • 9585 Type 1 Planar page:
    • New planar outline
    • Added note about alternative board layout
    • Added EEPROM IC to the outline/parts list
    • Added EEPROM prog. header to the outline/parts list
    • Added J15 clock selection info to the parts list
    • Added B1/B2 bus bar info to the parts list
    • Added U4 audio op-amp to the outline/parts list
  • 9585 Type 2 Planar page:
    • Reworked planar outline
    • Added EEPROM prog. header to the outline/parts list
    • Corrected bus bar B2 info in the outline/parts list
  • 8595 / 9595 XP Planar page:
    • Reworked planar outline
    • Corrected test point info in the parts list
  • 9595A / Server 500 Planar page:
    • Reworked planar outline
    • Added EEPROM prog. header to the outline/parts list
  • Common Jumpers & Connectors page:
    • Added alt. interlock connector info
    • Added info about undocumented power request pins for JMP3
    • Added JMP6 pinout diagram
  • S36/38 Workstation Emulation Adapter - corrected short adapter photo banner
  • 3270 Connection Adapters - ISA adapter parts list corrections
  • Token-Ring Network 16/4 Adapter/A page:
    • Corrected the older vs newer adapter identification (thx David)
    • Corrected ZM3 P/N for the older adapter (thx David)
  • Micro Channel Pinouts page:
    • Errata (OCR)
    • Reworked image & table references
    • Added links to the original PDF documents
  • Processor Complex Pinout - minor errata
  • Model 5550 386 page:
    • Updated S/T Stage 2 Planar outline and parts list, leaking caps info
    • Added datasheet links
    • Added 5551-S0/T0 specifications
    • Added external links
    • Reorganized, fixed some typos
  • Added 5550-S/T/V Engineering Changes page [5]
  • List of IBM ASICs & GAs - 5550 386-related additions/changes
  • Japanese Display Adapters page:
    • Added Display Adapter I POS ID and alt. name
    • Added ADF links
    • Added BIOS Modes [5]
    • Added external links
  • IBM SCSI - added link to a blog post about BlueSCSI on Spock (thx Louis)
  • Future Domain SCSI - added values of Patriot caps [6]
  • ChipChat 16 & 32 - added photos [2]
  • ATI 8514 Ultra page:
    • Added User's Guide version 2.1 [2]
    • Added 1130111315 ROM image dump [2]
    • Added floppy images [2]
  • IBM Display Adapter 8514/A - added datasheet links
  • Added IBM ROM BASIC page containing: [8]
    • General information about ROM BASIC
    • List of supported machines
    • List of ROM BASIC versions
    • List of BASIC.COM/BASICA.COM versions
    • Description of relevant interrupt routines
  • Adapter Picture Collection - recovered 6 missing images, minor errata (thx David)
  • Added the following ADF files to the ADF Stash and relevant adapter pages:
    • @8F62.ADF IBM 10/100 Mbps TX MCA Ethernet Adapter (custom) [7]
    • @EFFE.ADF Japanese Display Adapter (alt., Japanese text) + ADP
  • Datasheets - various additions/replacements
  • IBM Plant Codes page:
    • Added info about codes 23, 72 & 91 (thx Joe George)
    • Corrected code 10 from Rochester NY to MN (thx Fant Steele)
    • Swapped the Notes and Source columns
  • Style/layout changes to make the page more usable at higher resolutions
  • Other minor changes

   [1] Files sourced from Kevin Bowling's archive (original)
   [2] Photos/files from Alexander Paterakis
   [3] Photos/files from Ilya Vorobiev
   [4] Outline by Tomáš Slavotínek
   [5] Content by "Akamaki" from Diary on wind
   [6] Information provided by Josh Behrends
   [7] Files from Ryan Alswede
   [8] Based on content by David Beem

29 Jul 2023 – 30 Jul 2023

   [1] Photos/scans by Tomáš Slavotínek
   [2] ROM dump by Tomáš Slavotínek
   [3] Photos from David Beem
   [4] Photos from ebay seller "bdemchak"

07 Jul 2023

   [1] Article HTMLized by Louis Ohland, edited by Tomáš Slavotínek
   [2] Outlines and part ID by Tomáš Slavotínek
   [3] Photo from Ilya Vorobiev

28 Jun 2023

   [1] Photo from Ilya Vorobiev
   [2] Outline by Tomáš Slavotínek
   [3] Article HTMLized by Louis Ohland, edited by Tomáš Slavotínek

03 Jun 2023 – 04 Jun 2023

  • 8573 P70 page:
    • Added oscillator frequencies for the old DA
    • Added PLPC info
  • Added Matrox Impression page containing:
    • Adapter outline and parts list [1]
    • Adapter photo [2]
    • Drivers and other files (thx Louis!)
    • Impression/Ultima variants
    • RAMBIOS.SYS info
  • Matrox MG-108-M - added local copy of the files (thx Louis!)
  • Added Finn Thogersen's VGADOC version 4b
  • ChipChat 16 & 32 page:
    • Added disk 1 & 2 images [3]
    • Added User's Guide (from disk 1)
  • Added IBM 386DX Processors page [4]
  • Added QEMM 50-60 page w/ disk image and information [4]
  • Other minor changes

   [1] Outlines and part ID by Tomáš Slavotínek
   [2] Photo from ebay seller "on-wing"
   [3] Disk images provided by Lionel Harris
   [4] Files and information provided by David Beem

27 May 2023 – 28 May 2023

  • IBM SCSI Serial Console page:
    • Expanded the console announcement section
    • Updated the command list
    • Added description of the Trace command
    • Corrected and expanded description of the Fill command
    • Added some info about the ALIVE/ITS signals
    • Additional timing info for the loopback detection signal
    • Added Further Reading
    • Corrected/removed some now obsolete info
  • IBM Ultimedia Audio (7-6) page:
    • Updated outline & additional part ID
    • Added some datasheet links
    • Added PROM speculation
    • Added Y1 xtal info
    • Added scans of the 11H7636 adapter [1]
  • External Links - aperiodic update (Jim's page is back)
  • 8573 P70 page:
    • Added oscillator frequencies for the old DA
    • Added a piece of PLPC info
  • Other minor changes

   [1] Photos/scans by Tomáš Slavotínek

23 May 2023 – 24 May 2023

  • IBM SCSI Serial Console page:
    • Added diagrams of the serial connection
    • Added info about entering the 80188/80186 console
    • Updated the command list
    • Added description of the @, RC1A, RC1B, RC3 commands
    • Replaced examples based on disassembly with captured console output
    • Added a note about CHRESET's source (thx Louis)
    • Added a terminal screenshot
  • Other minor changes

21 May 2023

  • 8573 P70 page:
    • HTMLized plasma display pinout table
    • Styled the other pinout tables
    • Edited Arne Falch's findings
  • Added IBM DBA-ESDI Hard Drives page containing:
    • Information moved from the P70 page
    • Styled pinout table
    • Additional links
  • Other minor changes

18 May 2023

   [1] Outlines and part ID by Tomáš Slavotínek
   [2] Photos from DreamHardware and SuperVinx
   [3] Photos/scans by Tomáš Slavotínek
   [4] Photos by Tatsuo Sunagawa
   [5] Content collected and HTMLized by Louis Ohland; formated by Tomáš Slavotínek

27 Apr 2023

  • IBM Ultimedia Audio - credited Ryan as the author of the installation instructions
  • Other minor changes

23 Apr 2023

   [1] Photos and ROM dumps by Eric Schlaepfer aka "Tube Time"
   [2] Outline and part ID by Tomáš Slavotínek

18 Apr 2023 – 20 Apr 2023

   [1] Reverse engineered by Eric Schlaepfer aka "Tube Time"

15 Apr 2023 – 16 Apr 2023

  • Type 0 Complex page:
    • Added adapter photos [1]
    • Additional adapter ID info
  • PDF Documents - added IBM PC 300, 700, IntelliStation HMMs
  • IBM PC730/750 page:
    • Added video, audio & various other disk images
    • Added riser information
    • Added links to IBM PC 300, 700, IntelliStation HMM
    • Added EPRM links
  • IBM PC720 page:
    • Chipset identification
    • Part ID corrections and additions
    • Added EEPROM header info
  • IBM SCSI and planar pages - BIOS vs microcode ROM errata
  • SCSI-2 Fast/Wide Adapter page:
    • PLCC socket info errata, pin info, and ROM datasheets
    • Additional part ID
    • Added flash info, datasheet and photo
    • Additional J7 pinout info
    • Corrected and expanded jumper info
    • Reorganized and cleaned up
  • 85/95 Common Devices - added better SIMM layout illustration (thx Louis)
  • Added Dual Path / Dual Bus Memory page, merged with info from other pages [2]
  • IBM Technical Disclosure Bulletins - added LTB/SCSI related TDB
  • List of IBM ASICs & GAs - added local bus SCSI controller chips
  • Other minor changes

   [1] Photo from ebay seller "nyce-distribution"
   [2] HTMLized by Louis Ohland, edited by Tomáš Slavotínek

02 Apr 2023 – 04 Apr 2023

  • IBM PC720 - added info about riser battery
  • PC720 Power Supply page:
    • Added Remove PSU instructions
    • Added Open PSU instructions w/ photos [1]
    • Added photo of the PSU internals and fan protrusion [1]
    • Better PSU sticker photo [1]
    • Added PSU fan type, specs and photo [1]
    • Additional info about PSU connectors
  • 9556 / 9557 Planar page:
    • Added photo of the SLC3 planar [2]
    • Added photo of an early SLC2 planar [3] (thx Louis)
    • Additional info about BIOS ROM
    • Added info about early SLC2 planar rework
  • Troubleshooting Map - added Blinking cursor issue w/ incompatible memory (thx Louis)
  • SCSI POST Errors - overhauled and extended (thx Louis)
  • Future Domain SCSI page:
    • Cleaned up; fixed dead links
    • Merged with the Patriot Power page
    • Reworked the OS/2 Drivers & Switches section
  • 8590 / 9590 Planar - updated Loading SIMMs illustration (thx Louis)
  • IBM SCSI Microcode page:
    • Tweaked planar links, added MCU links
    • Added missing planar FRU P/Ns
    • Fixed flash size info and added flash image size note
  • SCSI-2 Fast/Wide Adapter page:
    • Added adapter photos [1][4]
    • Additional adapter ID info
  • Other minor changes

   [1] Photos by Tomáš Slavotínek
   [2] Photo from Carsten Lyng
   [3] Photo from ebay seller "intergalacticmicrosystems"
   [4] Photo from ebay seller "dreamhardware_com"

25 Mar 2023 – 27 Mar 2023

   [1] Photos from ebay seller "ctesales" (edited)
   [2] Photos from ebay seller "alan_computech_intl"
   [3] Photos from ebay seller "jordan16j" (edited)

20 Mar 2023 – 21 Mar 2023

  • IBM PC720 page:
    • Updated planar outline/parts list (EEPROM & Op-amp)
    • Reorganized the riser section
    • Added/corrected info on riser jumpers J1 and J2 (thx Tatsuo)
  • 8535/8540 Planar - added outline and parts list [1]
  • Other minor changes

   [1] Outline and part ID by Tomáš Slavotínek

19 Mar 2023

  • 8556 / 8557 Planar page:
    • Three new planar outlines replacing the original one [1]
    • Additional part ID [1]
    • Added info about PCB modules on the early boards; incl. photo [2]
    • Added info about CPU rework on the early boards; incl. photos [2]
    • Added list of notable differences between the board revisions
    • Added photos of the early [3] and later [4] planar
    • Additional BIOS P/Ns
    • Various other corrections and additions
  • 9556 / 9557 Planar page:
    • New planar outline [1]
    • Additional part ID [1]
  • IBM PC720 page:
    • New planar and riser outlines [1]
    • Additional part ID [1]
    • Additional planar and riser photos [5]
    • Various other corrections and additions
  • Networking page:
  • 8580 Planar Memory page:
    • Added Kingston KTM-1000/M80 outline/parts list [1] & photos [7]
    • Added Kingston KTM-2000/M80 outline/parts list [1] & photos [8]
    • IBM 2 MB 90X8670 - updated outline/parts list [1] & photos [9][10]
    • Additional connector types (Burndy & Panduit)

   [1] Outline and part ID by Tomáš Slavotínek
   [2] Photos from Louis Ohland
   [3] Photos from SuperVinx
   [4] Photos from ebay seller "ctsales"
   [5] Photos by Tomáš Slavotínek
   [6] Disk imaged and document scanned by Ray Zeisz
   [7] Photos from ebay seller "austintxresale"
   [8] Photos from ebay seller "black_sails_salvage2"
   [9] Photos from pc-history.com user "MaiklsBlack" (link)
   [10] Photos from sweclockers.com user "Övrigt" (link)

10 Mar 2023 – 12 Mar 2023

  • IBM PC720 page:
    • Added zipped raw images for all disks
    • Added PC720 Utility Diskette v1.10 image [1]
    • Added PC720 Support Diskette v1.10 image [1]
    • Added S3 Vision864 support disk image [1]
    • Added PCMCIA option disk image [1]
    • Added Small PCI Token Ring adapter disk images [1]
    • Added IBM IDE 2x CD-ROM option disk image [1]
    • Added scans of selected floppy disks [2]
    • Additional part ID + links
    • Added images from PS/55 Files page
  • PS/55 Files - Removed PC720 disk images
  • Added PC720 Power Supply page containing:
    • PSU specifications
    • PSU sticker photo [2]
    • Pinout for all PSU connectors
    • Fan info moved from the main PC720 page
  • PS/55 Model 5520 - added planar P/Ns and other ID (thx Tatsuo)
  • Type 4 Complex - tweaked Complex Features table legend (thx Louis)
  • PC Server 195/295 - added zipped refdisk/diags images
  • PC Server 320/520 PCI/MCA - added zipped refdisk/diags/flash images
  • PC Server 320/520 PCI/EISA - added zipped refdisk/diags/flash images; cleanup
  • PC Server 720 - added zipped refdisk/diags images
  • Other minor changes

   [1] Photos and scans from Tomáš Slavotínek
   [2] Disks imaged by Tomáš Slavotínek

03 Mar 2023

28 Feb 2023 – 01 Mar 2023

18 Feb 2023

   [1] Photos from Kevin Moonlight

09 Feb 2023 – 13 Feb 2023

   [1] Photo from aucview.aucfan.com
   [2] Photo from Yahoo! JAPAN Auctions seller "ttl_lv20c"

05 Feb 2023

   [1] Scans by Tatsuo Sunagawa (original HERE)
   [2] Information from Tatsuo Sunagawa (original HERE)

30 Jan 2023

26 Jan 2023

   [1] Photos provided by "limsup"

20 Jan 2023

   [1] Files provided by Christian Holzapfel

07 Jan 2023 – 12 Jan 2023

   [1] HTMLized by Louis Ohland, expanded by Tomáš Slavotínek

Older Changes

2022 Changelog
2021 Changelog
2020 Changelog
2016 – 2019 Changelog

Note: Changelogs from the 1998 – 2019 period are not available as Louis wasn't keeping track of the page updates. Update notices were posted typically posted to the CSIPH newsgroup — try searching there if you want to date a particular change or piece of information.

Content created and/or provided by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 05 Dec 2023 - Changelog | Legal Info & Contact