This publication, including all photographs, illustrations and software, is protected under international copyright laws, with all rights reserved. Neither this manual, nor any of the material contained herein, may be reproduced without the express written consent of the manufacturer. The information in this document is subject to change without notice. The manufacturer makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose. Further, the manufacturer reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of the manufacturer to notify any person of such revision or changes.

Trademarks

IBM, VGA, OS/2, and PS/2 are registered trademarks of International Business Machines. Intel, Pentium, Pentium-II, Pentium-III, MMX, and Celeron are registered trademarks of Intel Corporation. Microsoft, MS-DOS and Windows 95/98/NT are registered trademarks of Microsoft Corporation. Sound Blaster and SB-Link are trademarks of Creative Technology Ltd. PC-cillin and ChipAway Virus are trademarks of Trend Micro Inc. AMI is a trademark of America Megatrends Inc. A3D is a registered trademark of Aureal Inc. Other names used in this publication may be trademarks and are acknowledged.
Copyright 1999 All Rights Reserved MS7191SM, V1.2 V6T/June 1999
Federal Communications Commission (FCC)
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ! Reorient or relocate the receiving antenna. ! Increase the separation between the equipment and the receiver. ! Connect the equipment onto an outlet on a circuit different from that to which the receiver is connected. ! Consult the dealer or an experienced radio/TV technician for help. Shielded interconnect cables and shielded AC power cable must be employed with this equipment to insure compliance with the pertinent RF emission limits governing this device. Changes or modifications not expressly approved by the systems manufacturer could void the users authority to operate the equipment.
Declaration of Conformity
This device complies with part 15 of the FCC rules. Operation is subject to the following conditions: ! This device may not cause harmful interference, and ! This device must accept any interference received, including interference that may cause undesired operation.
Canadian Department of Communications
This class B digital apparatus meets all requirements of the Canadian Interference-causing Equipment Regulations. Cet appareil numrique de la classe B respecte toutes les exigences du Rglement sur le matriel brouilieur du Canada.

Table of Contents

Chapter 1 Introduction... 1
Key Features... 2 Slot-1 Processor Support.. 2 Socket-370 Processor Support.. 2 Memory Support... 2 Expansion Slots... 2 Onboard IDE channels... 3 Power Supply and Power Management.. 3 Sound System... 3 Onboard I/O Ports... 3 Hardware Monitoring.. 4 Fax/Modem DAA Module.. 4 Onboard Flash ROM... 4 Dimensions... 4 Package Contents... 5 Optional Accessories... 5 Static Electricity Precautions.. 6
Chapter 2 Mainboard Installation.. 7
Mainboard Components... 8 Install the Processor... 9 Installing a Slot-1 Processor Cartridge.. 10 Installing a Socket-370 Processor.. 11 Install Memory... 12 Set the Jumpers... 13 Jumper JP1: Fax/Modem & Audio System Enable/disable. 14 Jumper JP2: Keyboard Power On Selector.. 14 Jumper JP5: Clear CMOS Memory.. 14 Jumper JP4: Select Processor Type.. 15 Install the Mainboard... 15 Install the Extension Brackets.. 16 Audio Ports and Game/MIDI Port Extension Bracket. 16 Serial Ports Extension Bracket... 17 Parallel Port Extension Bracket.. 18 Fax/Modem DAA Module... 19 Optional Extension Brackets... 20 ATX Form Card... 20 Digital Audio Extension Bracket.. 20 Install Other Devices... 21
Floppy Disk Drive... 21 IDE Devices... 22 Internal Sound Connections... 22 Analog Audio.... 23 Digital Audio Connection... 23 Expansion Slots... 23 Add-In Card Options... 25 LAN Wake Up... 25 SB-Link... 25
Chapter 3 BIOS Setup.. 26

Introduction... 26 Running the Setup Utility... 27 Standard CMOS Setup Page... 28 Advanced Setup Page... 29 Advanced Chipset Setup Page... 31 Power Management Setup Page.. 32 PCI / Plug and Play Setup Page.. 34 Load Optimal Settings... 35 Load Best Performance Settings... 35 Peripheral Setup Page... 36 Hardware Monitor & CPU PnP Setup Page. 37 Change Supervisor Password... 38 Change or Remove the Password.. 38 Auto-Detect Hard Disks... 38 Save Settings and Exit... 38 Exit Without Saving Option.. 39
Chapter 4 Software & Applications. 40
Introduction... 40 Using the PCI Sound Application... 40 The Four Speakers System.. 41 Speaker Installation... 41 Speaker Position... 41 Mixer Setup... 42 Demo... 42

Chapter 1

Introduction
This mainboard has a slot-1 processor socket for an Intel processor cartridge, and it also has a socket-370 for an Intel PPGA (Plastic Pin Grid Array) Celeron processor. You can install either one of these processors according to the power and performance requirements that you need from your system. Note that you cannot install two processors on this mainboard. Slot-1 processors include the SEPP (Single Edge Processor Package) Celeron, the Pentium-II, and the Pentium-III. Clock rates run as high as 600 MHz. Socket-370 processors are the PPGA Celeron which runs at clock rates up to 533 MHz. The mainboard supports a system bus of 66 MHz or 100 MHz. The mainboard uses the VIA Apollo Pro chipset which provides CPU Plug & Play through firmware. The mainboard is highly integrated and includes a built-in PCI 3D Sound System. A V.90 Fax/Modem DAA module is also shipped with the mainboard. In addition, the mainboard has a full set of I/O Ports including two serial ports, one PS/2 ports, a parallel port and two USB ports. This mainboard has all the features you need to develop a powerful multimedia workstation with built-in communications. The board is baby-AT sized and has power connectors for ATX and AT power supply units.

Key Features

This key features of this mainboard include: Slot-1 Processor Support Pentium-III support for 450 MHz to 600 MHz clock rates Pentium-II support for 233 MHz to 450 MHz clock rates SEPP Celeron support for 266 MHz to 433 MHz clock rates Support for 66 MHz and 100 MHz FSB (Front Side Bus) All processors configured by CPU Plug & Play Socket-370 Processor Support The PPGA Celeron provides Pentium-II performance with integrated level 1 and level 2 cache memory PPGA Celerons run from 300 MHz to 533 MHz. Supports a 66 MHz front side system bus All Celerons are automatically configured using firmware Memory Support Three DIMM slots for SDRAM 168-pin memory modules Support for 66 MHz & 100 MHz memory bus Maximum installed memory can be 3 x 256 MB = 768 MB Expansion Slots One AGP Slot Three 32-bit PCI slots One 8/16-bit ISA slot

Onboard IDE channels Primary and Secondary PCI IDE channels Support for PIO (programmable input/output) modes Support for Bus mastering and UltraDMA 33 modes Power Supply and Power Management Dual connector for either AT or ATX power supply Support for Green PC standard, suspend switch, keyboard power on/off Supports Wake on Modem, Wake on LAN (WOL) connector and Wake on Alarm Sound System Meets PC98 audio specification Full duplex playback and recording with built-in 16-bit CODEC HRTF 3D professional audio supports both Direct Sound 3D and A3D compatible interface plus support for 4channel speakers Drivers support DOS/Windows 95/98/2000/NT 4.0 Built-in 32 ohm earphone buffer and 3D surround Provides MPU-401 Game/MIDI port and legacy Sound Blaster 16 support Downloadable Wave-table Synthesizer supports Direct Music Digital Audio Interface (SPDIF In/Out) with 24-bit stereo, 44KHz sampling rate and measured 120dB audio quality Stereo Mixer supports analog mixing from CD-Audio, Line-In, and digital mixing from voice, FM/Wave-table and digital CD-Audio Onboard I/O Ports Floppy disk drive port with 1Mb/s transfer rate Two serial ports with 16550-compatible fast UART One parallel port with support for ECP and EPP Two USB ports, a PS/2 mouse port and an infrared port (optional)
Hardware Monitoring Built-in hardware monitoring for CPU/system temperatures, fan speeds and mainboard voltages Supports AMIs Desktop Client Manager (ADCM) Fax/Modem DAA Module 56 Kbps Fax/Modem DAA module Supports V.90, V.34, V.32bis, V.32, V.22bis, V.22 Supports Auto Fallback and MNP 5, V.42bis data compression with 115200 compatible Virtual UART Requires 16 MB RAM and WIN 95/98/NT Onboard Flash ROM Provides plug and play function for automatic CPU and board configuration Supports plug and play configuration of peripheral devices and expansion cards Built-in virus protection using Trends ChipAwayVirus which ensures that the entire boot process is virus protected. Bundled Software AMI Desktop Client Manager supports hardware monitoring for a stand-alone systems or a networked workstation PC-Cillin provides automatic virus protection under Windows 95/98 Super Voice is Fax/Modem software with support for data and voice transmission MediaRing Talk is an internet telephone application Gamut provides professional audio applications included MP3 encoding/playback WordPerfect Suite 8 is a windows version office application Dimensions Baby-AT form factor (22cm x 22cm)

Package Contents

Your mainboard package ships with the following items:

! ! ! ! ! ! ! ! !

Mainboard This Users guide IDE cable Floppy diskette drive cable Audio ports and Game/MIDI port extension bracket Serial ports extension bracket Parallel port extension bracket V.90 Fax/Modem DAA module Support software CD-ROM
Optional Accessories You can purchase the following optional accessories for this mainboard.

ATX Form Card (2 USB ports, IR port & PS/2 port) Digital Audio extension bracket
Static Electricity Precautions
1. Components on this mainboard can be damaged by static electricity. Take the following precautions when unpacking the mainboard and installing it in a system. 2. Keep the mainboard, and other components, in their original static-proof packaging until you are ready to install them. 3. During an installation, wear a grounded wrist strap if possible. If you dont have a wrist strap, frequently discharge any static electricity by touching the bare metal of the system chassis. 4. Handle the mainboard carefully by the edges. Avoid touching the components unless it is absolutely necessary. During the installation lay the mainboard on top of the static-proof packaging with the component side facing upwards. 5. Inspect the mainboard for any damage caused during transit. Ensure that all the components that are plugged into sockets are correctly seated. 6. If you suspect that the mainboard has been damaged, do not apply power to the system. Contact your mainboard vendor and report the damage.

Chapter 2

Mainboard Installation
To install this mainboard into your system, follow the procedures in this chapter:

! ! ! ! ! ! !

Identify the mainboard components Install the correct processor Install one or more memory modules Verify that any jumpers or switches are at the correct setting Install the mainboard in the system chassis Install any extension cables to the mainboard headers Install any other devices and make the appropriate connections to the mainboard headers.
Note: Before installing the mainboard, you must ensure that the Clear CMOS jumper JP5 is set to the Normal setting. See this chapter for information locating JP5 and changing the jumper setting. Note: Please do not use the AC power cord to connect the system case to a power outlet until you have completely installed the mainboard and components. In some circumstances, the power management of the system might damage components and create unsafe conditions by allowing power to flow before the installation is complete,

Mainboard Components

Use the diagram below to identify the major components on your mainboard.

JP1 J1 J3

COM2 KBD

PRN1 J4

J2 ISA PCI3 PCI1

PW1 PW2

J7 Socket-370

FAN1 Slot1

PCI2 SB1

IDE1 J10

JP4 FAN2 DIMM1 DIMM2 DIMM3 IDE2 FDC1
Note: Any jumpers on your mainboard that do not appear in this illustration are for testing only.

Install the Processor

This mainboard has a Slot-1 that can be installed with any Slot-1 processor cartridge including the Pentium-III, Pentium-II, and the SEPP Celeron. It also has a Socket-370 that can be installed with the Celeron processor which is shipped in a PPGA (Plastic Pin Grid Array) package. To ensure reliability, ensure that your PPGA Celeron processor has a heatsink/cooling fan assembly. Take care that you do not try to install a Socket-7 processor into the Socket-370. A Socket-7 processor such as the Pentium-MMX, or the AMD K5/K6 does not fit in the socket-370. The following table lists the processors that are currently supported by this mainboard. New processors may be a released after this manual is printed.
Processor Cartridge Pentium-III Pentium-III Pentium-III Pentium-III Pentium-II Pentium-II Pentium-II Pentium-II Pentium-II Pentium-II Pentium-II SEPP Celeron SEPP Celeron SEPP Celeron SEPP Celeron SEPP Celeron SEPP Celeron SEPP Celeron PPGA Celeron PPGA Celeron PPGA Celeron PPGA Celeron PPGA Celeron PPGA Celeron PPGA Celeron PPGA Celeron Clock Rate MHz 333 300A Processor Socket Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Slot-1 Socket-370 Socket-370 Socket-370 Socket-370 Socket-370 Socket-370 Socket-370 Socket-370 System Bus MHz 66 66
Installing a Slot-1 Processor Cartridge 1. Locate Slot-1, FAN1, and JP4 on the mainboard.

FANJP4

Slot-1 with pre-installed cartridge holder. The upright arms are folded down for shipping.
2. The Slot-1 is installed with a cartridge holder. The upright struts of the cartridge holder are folded down for shipping. Pull the struts upwards so that they are in the upright position.
3. Insert the processor cartridge into the cartridge holder. Follow the instructions given with your processor cartridge. The edge connector on the cartridge has a notch so that it only fits into the Slot-1 in the correct way. 4. Locate the cooling fan power supply FAN1. Connect the cable from the processor cartridge cooling fan to FAN1. 10

Install your drives and supply power from the system power unit. Use the cable provided to connect the drives to the floppy disk drive header FDC1.
IDE Devices IDE devices include hard disk drives, high-density diskette drives, and CD-ROM/DVD drives. The mainboard ships with an IDE cable that can support one or two IDE devices. If you connect two devices to a single cable, you must configure one of the drives as Master and one of the drives as Slave. The documentation of the IDE device will tell you how to configure for Master or Slave. Install the device(s) and supply power from the system power unit. Use the cable provided to connect the device(s) to the Primary IDE channel connector IDE1 on the mainboard. If you want to install more IDE devices, you can purchase a second IDE cable and connect one or two devices to the Secondary IDE channel connector IDE2 on the mainboard. If you have two devices on the cable, one must be Master and one must be Slave. Internal Sound Connections If you have installed a CD-ROM drive or a DVD drive, you can connect the sound output of the drive to the built-in sound system.
You can connect the analog audio output to the analog connectors CD1 or CD2. If your drive has a digital audio output, you can connect it to the digital audio in connector J2.

G L G R L G G R CD2

J2-Digital Audio In Header
Analog Audio On the mainboard, locate the two 4-pin connectors for CD1 and CD2. The illustration shows the ground pins (G) and the pins for the left (L) and right (R) audio channels. There are two kinds of connector because different brands of CD-ROM/DVD drives have different kinds of cable connectors on their audio output cable. Connect the cable to the appropriate connector. Digital Audio Connection If your CD-ROM or DVD drive has 24-bit digital audio outputyou can use an optional internal digital audio cable to connect the digital output from the drive to the digital audio input connector J2 on the mainboard. Note: You cannot use the J2 digital audio in connector if you have already used the SPDIF1 digital audio in/out connector to connect to a digital audio extension bracket.

Expansion Slots

This mainboard has one AGP slot, three 32-bit PCI expansion slots, and one 8/16-bit ISA slot. The first PCI slot (PCI1) is shared with the ISA slot (ISA1). This means that you can use either one of these slots but you cannot use both slots at the same time.

PCI2 AGP ISA1

Follow the steps below to install an add-in card into one of the slots. 1. Determine which slot you need to use. The table below shows the functions of the slots.
AGP AGP stands for Accelerated Graphics Port. Use this slot to install a graphics adapter which has an AGP edge connector. PCI stands for Peripheral Components Interconnect. Use this slot to install current add-in cards which have a 32-bit PCI edge connector. ISA stands for Industry Standard Architecture. Use this slot to install older, legacy add-in cards which have an 8/16-bit ISA edge connector.

2. Locate the ISA or PCI or AGP slot on the mainboard. 3. Remove the blanking plate from the appropriate expansion slot on the system chassis. 4. Install the edge connector of the expansion card into the slot and press it quite firmly down so that it is seated correctly. 5. Secure the bracket of the card into the expansion slot in the system chassis using the screw that held the blanking plate in place.
Add-In Card Options This mainboard has a LAN wake up connector that can be used by an installed network adapter. It also has an SB-Link connector that can be used by an installed PCI Sound Blaster audio card.

J6-LAN wake up connector

SB1-SB-Link connector
LAN Wake Up If you are using an ATX power supply you can configure your system so that it powers down by software and can be resumed by alarms. If you have installed a LAN adapter expansion card, connect the card to the LAN Wake Up connector J6. This allows incoming traffic to resume the system from a software power down. You need to enable this feature in the system setup utility. SB-Link If you have disabled the built-in sound system and installed a PCI Sound Blaster audio card, you can connect the card to the SB-Link connector on the mainboard. The SB-Link circuit solves some problems that can occur when you try to play some older computer games which run in the DOS real-mode environment.

Chapter 3

BIOS Setup
The BIOS setup utility stores information about your computer such as the date and time, the kind of hardware you have installed, and so on. Your computer uses this information to initialize all the components at boot up time, and make sure that everything runs smoothly. If the information in the setup utility is incorrect, it may cause your system to malfunction. It can even stop your computer from booting properly. If this happens, you can use the clear CMOS jumper to clear the CMOS memory area that is used to store the setup information, or you can hold down the End key while you reboot your computer, Holding down the End key also clears the setup information. You can run the setup utility and manually make changes to the setup utility. You might need to do this to configure some of the hardware that you add to the mainboard, such as the CPU, the memory, disk drive, etc.

Running the Setup Utility
Each time your computer starts, before the operating system is booted, a message appears on the screen that prompts Hit <DEL> if you want to run SETUP. When you see this message, press the Delete key and the Mainmenu page of the setup utility appears on your monitor.
You can use the cursor arrow keys to highlight any of the options on the Mainmenu page. Press Enter to select the highlighted option. To leave the setup utility, press the Escape key. Hold down the Shift key and press F2 to cycle through the optional color schemes of the setup utility. Some of the options on the Mainmenu page lead to tables of items with installed values. In these pages, use the cursor arrow keys to highlight the items, and then use the PgUp and PgDn keys to cycle through the alternate values for each of the items. Other options on the Mainmenu page lead to dialog boxes which require you to answer Yes or No by hitting the Y or N keys. If you have already made changes to the setup utility, press F10 to save those changes and exit the utility. Press F5 to reset the changes to the original values. Press F6 to install the setup utility with a set of default values. Press F7 to install the setup utility with a set of high-performance values. 27

Standard CMOS Setup Page

Use this page to set basic information such as the date and time, the IDE devices, and the diskette drives.
Date & Time Pri Master Pri Slave Sec Master Sec Slave
Use these items to install your system with the correct date and time Use these items to configure devices on the primary and secondary IDE channels. To configure a hard disk drive, choose Auto. If the Auto setting fails to find a hard disk drive, set it to User, and then fill in the hard disk characteristics (Size, Cyls, etc.) manually. If you have a CDROM drive, select the setting CDROM. If you have an ATAPI device with removable media (e.g. a ZIP drive or an LS-120) select FLOPTICAL. Use these items to set the size and capacity of the floppy diskette drive(s) installed in the system.
Floppy Drive A Floppy Drive B

Advanced Setup Page

Use this page to set more advanced information about your system. Take some care with this page. Making changes can affect the operation of your computer.
Quick Boot 1st Boot Device 2nd Boot Device 3rd Boot Device Try Other Boot Device S.M.A.R.T. for Hard Disks BootUp NumLock Floppy Drive Swap

PCI specification version 2.1
On Board USB Function USB Function for DOS Keyboard Power On
Enable this item if you plan on using the USB (Universal Serial Bus) ports integrated on this mainboard. Enable this item if you plan on using the USB ports while working in the DOS environment. Your system can enter a software power down. If you enable this item, you can resume the system by pressing hot keys on the keyboard. You must be using an ATX power supply and enable jumper JP2 in order to use this feature. If you have enabled the Keyboard Power On, use this item to select the hot keys to power on the system. Enable this item if your IDE hard disk drives support Ultra DMA
Stroke Keys Selected Ultra DMA Support
Power Management Setup Page
This page sets some of the parameters for the system power management operation.
Power Management/APM Green Monitor Power State Video Power Down Mode Hard Disk Power Down Mode Standby Time Out (Minute) Suspend Time Out (Minute) Display Activity Serial Port 1 Serial Port 2
Use this item to enable or disable the power management routines. If you enable the power management, you can use the items below to set the power management operation. This item defines which power-saving mode is required to trigger the power management operations of a green monitor. This item defines which power-saving mode is required to power down the monitor. This item defines which power-saving mode is required to power down the hard disk drive. This sets the timeout for standby mode in minutes. If the time selected passes without any system activity, the computer will enter the power-saving standby mode. This sets the timeout for suspend mode in minutes. If the time selected passes without any system activity, the computer will enter the power-saving suspend mode. If you set this item to Monitor, any activity on the display will reset the timers for the powersaving timeouts. If you set this item to Monitor, any activity on the serial port 1 will reset the timers for the power-saving timeouts. If you set this item to Monitor, any activity on the serial port 2 will reset the timers for the power-saving timeouts. If you set this item to Monitor, any activity on the parallel port will reset the timers for the power-saving timeouts. If you set these items to Monitor, any activity on devices on the primary IDE channel will reset the timers for the power-saving timeouts. If you set these items to Monitor, any activity on devices on the primary IDE channel will reset the timers for the power-saving timeouts. If you enable this item, incoming calls to the fax/modem can resume the system from a power-saving mode or a software power down.
Parallel port Primary master IDE Secondary master IDE Modem Ring Power On
Wakeup On LAN (WOL) RTC Alarm Power On RTC Alarm Date / Hour / Minute / Second
If you enable this item, network traffic to the LAN adapter can resume the system from a power-saving mode or a software power down. If you enable this item you can set an alarm on the system realtime clock that will resume the system from a power-saving mode or a software power down. If you have enabled the RTC Alarm Power on, use these items to set the time and date of the alarm.

PCI / Plug and Play Setup Page
This page sets some of the parameters for devices installed on the system PCI bus, and devices that use the system plug and play capability.
Plug and Play Aware O/S Primary Graphics Adapter
Enable this item if you are using an O/S that supports Plug and Play such as Windows 95 or 98. Use this item to define if your primary graphics adapter is installed in a PCI slot or on an AGP bus.
PCI VGA Palette Snoop Assign IRQ for VGA DMA Channel X
When this item is enabled, multiple VGA devices operating on different buses can handle data from the CPU on each set of palette registers on every video device. If this item is enabled, an IRQ will be assigned to the VGA graphics system. We recommend that you set this value to No. If you set this to PnP, the system will dynamically allocate DMA channels as they are required. If you set a DMA channel to ISA/EISA, it will be reserved for a non-plug and play ISA or EISA device. If you set this to PCI/PnP, the system will dynamically allocate IRQs as they are required. If you set an IRQ to ISA/EISA, it will be reserved for a non-plug and play ISA or EISA device. This item lets you reserve a block of memory for any device that requires it. This item lets you set the address for any block of memory that has been reserved.
Reserved Memory Size Reserved Memory Address

Load Optimal Settings

If you select this item and press Enter a dialog box appears. If you press Y, and then Enter, the setup utility is loaded with a set of optimal default values. The optimal default values are not very demanding and they should allow your system to function with most kinds of hardware and memory chips.
Load Best Performance Settings
If you select this item and press Enter a dialog box appears. If you press Y, and then Enter, the setup utility is loaded with a set of best-performance default values. The optimal default values are quite demanding and your system might not function properly if you are using slower memory chips or other kinds of lowperformance components.

Peripheral Setup Page

This page sets some of the parameters for peripheral devices installed on the system.
Onboard FDC Onboard Serial Port1 Onboard Serial Port 2 Serial Port2 Mode
Use this item to enable or disable the onboard floppy disk drive interface. Use this item to enable or disable the onboard serial port COM1/3, and to assign a port address Use this item to enable or disable the onboard serial port COM2/4, and to assign a port address Use this item to allocate the resources of the second serial port. Under Normal, the resources are allocated to the onboard serial port. Under ASKIR or IrDA, the resources are allocated to the onboard IR port, Use this item to define if the optional infrared port is full-duplex or half-duplex. Use this item to enable or disable the onboard parallel port LPT1, and to assign a port address

Save Settings and Exit

Highlight this item and press Enter to save the changes that you have made in the setup utility and exit the setup program. When
the Save and Exit dialog box appears, press Y to save and exit, or press N to return to the setup main menu.
Exit Without Saving Option
Highlight this item and press Enter to discard any changes that you have made in the setup utility and exit the setup program. When the Exit Without Saving dialog box appears, press Y to discard changes and exit, or press N to return to the setup main menu.

Chapter 4

Software & Applications
The support software CD-ROM that is included in the mainboard package contains all the drivers and utility programs needed to properly run our products. Please check all the README files for the latest information on installing and using the software.
Using the PCI Sound Application
1. Before you install the PCI Sound drivers, make sure your Operating System has been installed, otherwise the PCI Sound might be detected as Other device by the device manager of your OS. 2. After the drivers are properly installed, choose the MULTIMEDIA icon in the CONTROL PANEL when you need to use the Software Wave-Table drivers as a MIDI output device. Select the MIDI page and click on C-media SoftMidi Synthesis (Win98) / Driver (Win95), then click OK to confirm. 3. A Windows application named Audio Rack is provided with the PCI Sound drivers, which gives you control over all the audio functions through a user interface that is as simple to use as a home stereo system. We recommend that you use the System Mixer in the Audio Rack software to control your computers audio volume, recording device and the recording gain. 4. If the devices that you are using require the MIDI port as the control interface, you need to select the MULTIMEDIA icon
in the CONTROL PANEL. Select the MIDI page and click on CM8338 MPU-401 (Win98) or CM8338/C3DX PCI Audio External MIDI Port (Win95), and then click OK to confirm. 5. For more information, refer to the PCI Sound manual in the CD which ships with this mainboard.

The Four Speakers System

The onboard PCI Sound audio system supports 2 wave channels (front/rear) known as the 4 speaker system. If you are running applications which use the DirectSound 3D or A3D audio interface, your system can simulate realistic 3D sound through a 4 speaker setup. Follow the steps below to install a 4-speaker setup. Speaker Installation Connect the front two speakers to the Line-out jack on the sound ports extension bracket. Connect the rear two speakers to the Linein/Rear jack on the sound ports extension bracket. The original Line-in can be moved to Aux. Speaker Position Set up your speakers similar to the following figure to get the best audio result.

Mixer Setup There is a 4-speakers option in the Volume Control of the Mixer when you are setting up the PCI Audio Application. Click on the 4 SPK icon to enable this option. This means that the output to the rear speakers is sent through the Line-in/Rear jack. In order to avoid hardware conflicts, DO NOT enable this option when the Line-in/Rear jack is connected with a line-in device. While the 4 speakers mode is enabled, turn on/off the output of the front speakers and adjust the volume of the speakers so that the front/rear speakers have the same volume. Demo Execute the Helicopter demo in the C3D HRTF Positional Audio Demos of the PCI Audio Application. When you hear the helicopter flying behind you, it means that the rear speakers are working properly.