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Trademark Acknowledgments:

1. Introduction

This Model # 23212 / 23262 OPTI 931/OPTI 931+3D Audio Controller is a 16-bit Full Duplex sound card based on the OPTi 82C931 Full Duplex Plug-n-Play Integrated Audio Controller Chip.

The OPTI Sound Card is available in two versions. The standard version OPTI 931 is a 16-bit Full Duplex sound card whereas the OPTI 931+3D comes with a built-in ‘3D’ features which is always enable. It adds hardware and software 3D sound effect to any audio signal, whether it is from an audio CD, MIDI or Wave file.

The OPTI 931/OPTI 931+3D Sound Card will let you run thousands of Sound Blaster and Sound Blaster PRO compatible games and applications, including a rapidly growing number of Windows business applications that are compatible with the Windows Sound System.

Included with full support for these PC popular sound standards, the OPTI 931/OPTI 931+3D includes audio cable interface for CD-ROM drives. Also, it has multiple input and output ports for recording and playback of stereo sound.

1.1 The OPTI 931/OPTI 931+3D Sound Card Features

The OPTI 931/OPTI 931+3D is a fully featured sound card which includes the following :

1.2 What is in your package ?

You should have the following items in your package :

2. Installation



Jumpers and Connectors Description
J2Wavetable Connector
J3GSGS CD-ROM Drive Audio Cable Connector ***see below
J4SGGS CD-ROM Drive Audio Cable Connector ***see below
J5Game Port Connector
AJ2Speaker Out/ Line Out Connector
AJ3Line In Connector
AJ4MIC In Connector

JP2 & JP3 :
2-3 = Enable on board amplifier(AJ2 = SPEAKER OUT Connector)
1-2 = Disable on board amplifier(AJ2 = LINE OUT Connector)

Note :
i) The factory default setting is 2-3
ii) Uses 2-3 setting - when connect the sound card to normal computer speakers
iii) Uses 1-2 setting - when connect the sound card to self-power devices (e.g. Hi-Fi system, amplifier)

GSGS / SGGS : CDROM to Sound Card Audio Cable connections
This card has audio connectors for Panasonic, Sony & Mitsumi standard Audio Cables...
Panasonic standard=connect to GSGS
Sony standard=connect to SGGS
Mitsumi (reverse cable on Panasonic) standard=connect (reverse) to GSGS

2.1 Hardware Installation

Note that if your system is not PnP compatible, the default configuration is as follows:
Operation ModeSound Blaster Pro Compatible
IRQ5
DMA Channel1
I/O Port Address220h
CD-ROM InterfaceNone

2.2 Software Driver Installation

2.21 DOS & Windows 3.1 Driver Installation

Note : If your system does not support Plug & Play, you will have to make your configuration settings under the ‘Configuration & Sound-Test’ menu. But if your system supports the Plug & Play 1.0a specification, most of these settings will not be user selectable.

2.22 Windows 95 Driver Installation

Note : Install the Sound Card into the motherboard only after the Windows '95 has already installed into the new HDD of the new system, then restart the system and follow the procedure below..