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IBM Easy Options Game & Audio Card AC525

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Jumper Settings

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

51749-1.png

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

See Also