From the Millipede manual:
| Beeps | Suspect BAD ram chip | |
| 1 | F2 (2114) | |
| 2 | E2 (2114) | |
| 3 | M2 (2101) | |
| 4 | N4 (2101) | |
| 5 | L2 (2101) | |
| 6 | M4 (2101) | |
| 7 | K2 (2101) | |
| 8 | L4 (2101) | |
| 9 | J2 (2101) | |
| 10 | K4 (2101) |
If millipede detects any RAM failure, it will not allow the game to be played, it will continually loop testing RAM and beeping.
As displayed in test mode
| Code | Suspect BAD rom chip | |
| R1 | M/N1 | |
| R2 | L1 | |
| R3 | J/K1 | |
| R4 | H1 | |
| EA | P2 (EAROM) | |
| P0 | D4 (pokey) | |
| P1 | B4 (pokey) |