Editing Commodore Test Cartridge Index

This page catalogues '''all known Commodore diagnostic cartridges (and plug-in diagnostic ROM boards)''' released for 8-bit and 16/32-bit Commodore computers—from the PET series to the Amiga CD32—and includes modern community re-creations or multi-ROM compilations.  
''Disk-based test suites, cable harnesses, and simple loop-back plugs are '''out of scope'''.''

== Commodore PET / CBM 2000-8000 series ==
{| class="wikitable sortable"
! Cartridge / Board !! Part No. / ROM Rev !! Era !! Year !! Supported models !! Notes
|-
| PET Service Diagnostic Board || 320345-01 || Original || 1979 || PET 2001/3xxx/4xxx/8xxx || 6502 daughter-board issued to service centres
|-
| PET “ROM-RAM” Diagnostic Board || — || Original || 1981 || PET 2001-N → 4032 || Replaces system ROM/RAM; displays fault map
|-
| PET Diagnostic Clip (Tynemouth) || — || Modern || 2016 || PET 2001-8032 || CPU-socket clip with self-contained ROM tests
|}

== Commodore VIC-20 ==
{| class="wikitable sortable"
! Cartridge !! Part No. / ROM Rev !! Era !! Year !! Supported models !! Notes
|-
| VIC-20 Diagnostic Cartridge || 324503-01 || Original || 1982 || VIC-20 || Official Commodore service cartridge
|-
| VIC-20 Dead Test Cartridge || — || Modern || 2021 || VIC-20 (PAL & NTSC) || Starts with minimal-RAM bypass for black-screen faults
|-
| VIC AV/Keyboard Test Cart || — || Modern || 2023 || VIC-20 (unexpanded) || Community colour-bar, sound and matrix tests
|}

== Commodore 64 / SX-64 ==
{| class="wikitable sortable"
! Cartridge !! Part No. / ROM Rev !! Era !! Year !! Supported models !! Notes
|-
| C64 Diagnostic Cartridge Rev 326070 || 326070-01 || Original || 1982 || C64 rev-A boards || First-gen diagnostic; no user-port tests
|-
| C64 Diagnostic Cartridge Rev 586220 || 586220-01 || Original || 1984 || All C64 / SX-64 || Standard service cartridge (harness)
|-
| C64 Dead Test Cartridge Rev 781220 || 781220-01 || Original || 1988 || C64 / C64C / SX-64 || Boots with minimal RAM; flashes error codes
|-
| C64 Diagnostic Cartridge Rev 785260 || 785260-01 || Original || 1992 || Late C64C boards || Adds CIA timer check; harness unchanged
|-
| Dual Dead-Test & Diagnostic (2-in-1) || — || Modern || 2015 || C64 / C128 (64-mode) || DIP-switch selects 781220 or 586220 ROM
|-
| DIAGcart 64 (4-in-1) || — || Modern || 2022 || C64 / SX-64 || 781220, 586220, 586220+ and RAM-only tests
|-
| MultiROM Diagnostic (586220 + 785260) || — || Modern || 2021 || C64 / C64C || Menu-driven multi-revision cartridge
|}

== Commodore 128 ==
{| class="wikitable sortable"
! Cartridge !! Part No. / ROM Rev !! Era !! Year !! Supported models !! Notes
|-
| C128 Diagnostic Cartridge Rev 789010 || 789010-01 || Original || 1985 || C128 / C128D || 40-column mode; requires harness
|-
| C128 Diagnostic Cartridge Rev 588121 || 588121-01 || Original || 1987 || C128 / C128D || Tests MMU & VDC pointers
|-
| C128 Dual-Diag Cartridge || — || Modern || 2021 || C128 / C128D || Selectable 789010 or 588121 images
|}

== Commodore 264 family (C16 / Plus/4 / C116) ==
{| class="wikitable sortable"
! Cartridge !! Version / Part No. !! Era !! Year !! Supported models !! Notes
|-
| Commodore TED Diagnostic (service) || 318004-01 || Original || 1984 || C16 prototype boards || Factory-only ROM; rare
|-
| '''Diag264''' || v0.97 || Modern || 2012 || C16 / Plus/4 / 116 || Open-source diagnostic; PAL & NTSC
|-
| Diag264 Cartridge + Harness kit || — || Modern || 2020 || C16 / Plus/4 / 116 || Gold-finger PCB with loop-backs
|}

== Commodore Amiga (OCS / ECS / AGA) ==
{| class="wikitable sortable"
! Cartridge / ROM / Board !! Version / Part No. !! Era !! Year !! Supported models !! Notes
|-
| '''Amiga A1000 “Diagnostic Aide” Board''' || — || Original || 1986 || Amiga 1000 || Clip-on board letting a “known-good” board test a faulty one
|-
| '''Logica Diagnostic ROM V1.0''' || — || Original || 1991 || A500 / A2000 || Commodore-authorised service ROM developed by Logica S.n.c.
|-
| DiagROM (John Hertell) || v1.3 || Modern || 2017 || All OCS/ECS/AGA (A1000→CD32) || Open-source Kickstart replacement with comprehensive tests
|-
| DiagROM – CD32 AUX variant || v1.3 || Modern || 2021 || CD32 || Boots via AUX port or ROM adapter
|-
| AMROM (pre-flashed with DiagROM) || — || Modern || 2022 || A500 / A2000 || Re-flashable 27C400 adapter supplied with DiagROM
|-
| DiagROM 40-pin (A600 / A1200 / A3000 / A4000) || v1.3 || Modern || 2023 || A600 / A1200 / A3000 / A4000 || 27C800-format EPROM for late-model boards
|}

[[Category:Commodore Systems]]