IBM CORPORATION
EASY OPTIONS GAME & AUDIO CARD AC525
Card Type | Sound card |
Chip Set | Unidentified |
Maximum Onboard Memory | N/A |
I/O Options | Game/MIDI port, microphone in, speaker, volume |
Data Bus | 8-bit ISA |
Floppy drives supported | N/A |

CONNECTIONS | |||
Function | Label | Function | Label |
Game/MIDI port | CN1 | Mic in | J2 |
Speaker | J1 | Volume | VR1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
MIDI port disabled | SW1/1 | On | |
MIDI port enabled | SW1/1 | Off | |
| » | Factory configured - do not alter | SW1/5 | Unidentified |
Game port disabled | SW1/6 | On | |
Game port enabled | SW1/6 | Off | |
| » | Factory configured - do not alter | SW2/1 | Unidentified |
GAME/MIDI PORT INTERRUPT SELECTION | |||||
IRQ | J6/A | J6/B | J6/C | J6/D | |
2 | Closed | Open | Open | Open | |
3 | Open | Closed | Open | Open | |
5 | Open | Open | Closed | Open | |
| » | 7 | Open | Open | Open | Closed |
AUDIO INTERRUPT SELECTION | |||||
IRQ | J7/A | J7/B | J7/C | J7/D | |
2 | Closed | Open | Open | Open | |
3 | Open | Closed | Open | Open | |
| » | 5 | Open | Open | Closed | Open |
7 | Open | Open | Open | Closed | |
DIGITAL AUDIO BASE I/O ADDRESS SELECTION | ||||
Address | SW1/2 | SW1/3 | SW1/4 | |
210h | On | On | Off | |
| » | 220h | Off | Off | Off |
230h | On | Off | Off | |
240h | Off | On | On | |
250h | Off | On | Off | |
260h | Off | Off | On | |
Disabled | On | On | On | |
GAME/MIDI PORT BASE I/O ADDRESS SELECTION | |||
Address | SW2/2 | SW2/3 | |
300h | On | On | |
310h | Off | On | |
320h | On | Off | |
| » | 330h | Off | Off |