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# IBM CORPORATION
EASY OPTIONS GAME & AUDIO CARD AC525
Card Type Sound card
Chip Set Unidentified
Maximum Onboard N/A
Memory
I/O Options Game/MIDI port, microphone in, speaker, volume
Data Bus 8-bit ISA
Floppy drives N/A
supported
IMG IMG 1
+------------------------------------------------------------+
| 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 | SW1/5 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | Game port disabled | SW1/6 | On |
|---+---------------------------------+-------+--------------|
| | Game port enabled | SW1/6 | Off |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SW2/1 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+