Editing Commodore Test Cartridge Index (section)

== 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
|}