Atari ST motherboard revisions

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Revision as of 08:43, 11 September 2011 by Admin (talk | contribs) (Added DarkLord motherboard)
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Atari ST motherboard revisions


The Atari ST went through a fair amount of revisions during its lifetime.

Please feel free to upload a picture of your motherboard. Please keep your photo to 1.5 MB, thanks.

Model Number Rev Model Add-ons Photo Notes Submitted by
C07115 2 520 ST ? C07115 Rev. 2 jokker
C070243 C 520 ST+ ? C070243 Rev. C Factor6
C070243 F 520 STM ? C070243 Rev. F firyembers
C070243 H 520 STM ? C070243 Rev. H Separate Floppy/PSU, On-main-board mouse/joystick, No support for 2-chip TOS ppera
C070243 I 520 STM ? C070243 Rev. I As H. Support for 2-chip TOS ppera
C070523-001 D ? 20Mhz processor, Autoswitch overscan, 4MB memory, TOS 1.4/Kaos switch, HD/ED Floppy, High speed serial C070523-001 Rev. D Nyh
C070523-001 D ? ? C070523-001 Rev. D Ram chips in a row at the bottom, TOS under where the PSU normally sits exxos
C070523-001 D 520 STFM 4MB Upgrade C070523-001 Rev. D floppydood
C070523-001 C 1040 STF None C070523 Rev. C Another with TOS under the PSU. Makes changing TOS very tedious. 1632
C070523-001 D 520 STFM None C070523-001 Rev. D PAL 520STFM, TOS 1.02, purchased 12/86 with single-sided internal drive Dio
C070789-001 B 1040 STF None C070789-001 Rev. B push2fit
C070789-001 B 520 STFM None C070789-001 Rev. B roy strange
C070789-001 C 520 STFM None C070789-001 Rev. C insanity
C070789-001 C 520 STFM 1MB Upgrade C070789-001 Rev. C insanity
C070789-001 C 520 STFM 4MB 72pin BETA Hack & test 1.44 floppy upgrade C070789-001 Rev. C exxos
C070789-001 C 520 STFM 30pin 4MB hacked, Dual TOS, and prototype 1.44 floppy upgrade C070789-001 Rev. C exxos
C070859-001 _ 1040 STF None C070789-001 Rev. C push2fit
C100167-001 4.0 Mega ST (4MB) ? C100167-001 Rev. 4.0 Original ROMs replaced with Flash EPROMs ppera
C100167-001 5.0 Mega ST2 ? C100167-001 Rev. 5.0 jokker
C103088 C103253 3. 1. 520 STFM None C103088 Rev. 3 C103253 Rev. 1 roy strange
C103088 C103253 5. 3. 520 STFM None C103088 Rev. 5 C103253 Rev. 3 Ram chips normally where the ROM is, ROM is under the PSU. exxos
C103175 1 1040 STF None C103175 Rev. 1.1 push2fit
C103175 1.1 1040 STFM ? C103175 Rev. 1.1 4bit RAM chips ppera
C103414-001 1 520 STFM 1MB Upgrade C103414-001 Rev. 1 Stefan jL
C103414-001 1.1 520 STFM None C103414 Rev. 1.1 Similar to Rev. 1 above but 2-chip TOS and chip in space below labelled LS11 insanity
C103414-001 1.1 520 STFM None C103414 Rev. 1.1 SMT for MMU & GLUE, Smaller SMT RAM chips only 4 exxos
C103999-001 B STACY None C103999-001 Rev. B DarkLord
C300720-001 A TT030 None C300720-001 Rev A krupkaj
CA401146-001 H TT030 None CA401146-001 Rev H krupkaj
CA401177 ? STE ? CA401177 Rev ? Frank B
CA4003290 _ STE ? CA4003290 Rev _ Small board at top, right is HD floppy circuit. There is IDE IF too, with experimental hot-swap support, therefore so many chips soldered. ppera
CA4003290 ? Mega STE ? CA4003290 Rev ? Decky
CA4003290 _ STE ? CA4003290 Rev _ Stefan jL
Unknown ? Mega STE ? Unknown ? ACSI-SCSI adapter is modded, and supports drives over 1GB ppera
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