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 is a trademark of Creative Technology Ltd. PC-cillin and ChipAwayVirus are trademarks of Trend Micro Inc. Award is a trademark of Award Software Inc. A3D is a registered trademark of Aureal Inc. Gamut is a registered trademark of Formosoft International Inc. SuperVoice is a registered trademark of Pacific Image Communications Inc. MediaRing Talk is a registered trademark of MediaRing Inc. WordPerfect is a registered trademark of Corel Corporation Ltd. Other names used in this publication may be trademarks and are acknowledged.
Copyright 1999 All Rights Reserved MS7192SM, V1.3 V6X/July 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... 2 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 Bundled Software... 4 Dimensions... 4 Package Contents... 5 Optional Accessories... 5 Static Electricity Precautions.. 6
Chapter 2 Mainboard Installation.. 7
Mainboard Components... 8 I/O Ports.... 9 Install the Processor... 9 Install Memory... 12 Set the Jumpers... 13 Jumper JP1: Clear CMOS Memory.. 13 Jumper JP2: Keyboard Power On Selector.. 14 Jumper JP4: Select System Bus Frequency.. 14 Jumper JP7: Flash BIOS Enable/disable. 14 Install the Mainboard... 15 Install the Extension Brackets/Options.. 16 Fax/Modem DAA Module... 16 Optional Digital Audio Extension Bracket.. 17 Optional Infrared Port... 18 Install Other Devices... 18 Floppy Disk Drive... 18 IDE Devices... 19 Internal Sound Connections... 19 Expansion Slots... 20
Installing an Expansion Card.. 20 Wake Up Connectors and Sideband1... 20 Wake On LAN... 21 Wake On Modem.. 21 SB-Link... 21
Chapter 3 BIOS Setup.. 22
Introduction... 22 Running the Setup Utility... 23 Standard CMOS Setup Page... 24 BIOS & CPU Features Setup Page.. 25 Chipset Features Setup Page... 27 Power Management Setup Page.. 29 PNP / PCI Configuration Page... 31 Load BIOS Defaults.. 32 Load Optimum Settings... 32 Integrated Peripherals Page... 33 Password Settings... 35 Change or Remove the Password.. 35 IDE HDD Auto Detection... 35 Save and Exit Setup.. 36 Exit Without Saving Option.. 36
Chapter 4 Software & Applications. 37

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 and CPUFAN1on the mainboard.
Slot-1 with pre-installed cartridge holder. The upright arms are folded down for shipping.

CPUFAN1

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 CPUFAN1. Connect the cable from the processor cartridge cooling fan to FAN1. 5. On this mainboard, you can configure the processor by entering the correct settings in the BIOS setup utility. Installing a Socket-370 Processor The Celeron processor installs into the ZIF (Zero Insertion Force) Socket-370 on the mainboard. 1. Locate the Socket-370 and CPUFAN1. Pull the locking lever out from the socket and swing it to the upright position.

Socket-370

CPUFAN1 Pin-1 Corner
2. On the Celeron processor, identify the pin-1 corner by noting that it has a slight bevel. 3. On the Socket-370, identify the pin-1 corner. The pin-1 corner is on the same side as the locking lever, closest to the top of the lever when it is in the locked position. 4. Match the pin-1 corners and insert the Celeron processor into the socket. No force is required and the processor should drop into place freely. 5. Swing the locking lever down and hook it under the catch on the side of the socket. This locks the Celeron processor in the socket. If the Celeron processor is installed with a cooling fan assembly, connect the cable from the fan to the CPU fan power connector CPUFAN1.

Function Disable Keyboard Power On Enable Keyboard Power On Jumper Setting Short Pins 1-2 Short Pins 2-3
Jumper JP4: Select System Bus Frequency If you set this jumper to Normal, the system will auto-detect if the installed processor requires a system bus speed of 66 MHz or 100 MHz. If you set this jumper to Force 100 MHz, the system will always use a 100 MHz bus, even for processors that are rated to run on a 66 MHz system bus frequency.
Function Normal (default) 100 MHz Jumper Setting Short Pins 1-2 Short Pins 2-3
Jumper JP7: Flash BIOS Enable/disable The mainboard BIOS is stored on an EPROM (Erasable Programmable Read Only Memory) chip. You can erase an old BIOS and write an upgrade BIOS to the chip by using the Flash BIOS utility. Before flashing a new BIOS, you must set this jumper to Enable.
Function Enable flash BIOS Disable flash BIOS Jumper Setting Short Pins 1-2 Short Pins 2-3

Install the Mainboard

Install the mainboard into the system chassis. This mainboard uses the ATX format with a twin-tier of I/O ports. Ensure that your case has an I/O template that can be used by this mainboard. Install the mainboard into the unit case. Follow the instructions provided by the case manufacturer using the screws and mounting points provided in the chassis.

ATX1 J2

Panel 1

CASEFAN1 23

Connect the power cable from the power supply unit to the power connector ATX1 on the mainboard. If the system chassis is installed with a cooling fan, connect the cable from the cooling fan to the chassis fan power connector on the mainboard CASEFAN1. Connect the case switches and indicator LEDs to the bank of switch and LED connectors PANEL and J2 for dual color LED. See the illustration below for a guide to the pin functions of the PANEL connector.
Green LED 7-8-9 Power LED 1-2-3 Reset SW 12-13 HDD LED 20-21
1 Sleep SW 4-5 Keylock 10-11 Speaker 15-16-17-18

Power SW 22-23

Install the Extension Brackets/Options
This mainboard ship with a Fax/Modem DAA module. You can install an optional Digital Audio extension bracket and an optional infrared port. The extension brackets are used to transmit features on the mainboard to external connectors that can be fixed to the system chassis. Follow the steps below to install the extension brackets. Note: All the ribbon cables used on the extension brackets carry a red stripe on the pin-1 side of the cable. Fax/Modem DAA Module The Fax/Modem DAA module plugs directly into the mainboard adjacent to an expansion slot in the system chassis. When you remove the blanking plate from the system chassis, you can access the LINE and TEL RJ11 connectors on the metal edge of the Fax/Modem DAA module.

J1-MODEM Header

GND 1 GND 3 GND 5 AUX 3V 7 HOOK 9 RIN 11 AUX 5V 13 MUTE MCLK 4 FRA-SY 6 SCLK 8 RIN-WAK 10 GPIO 12 SDO 14 SDI 16 RST
1. Locate the J1 modem header on the mainboard. 2. Plug the Fax/Modem DAA module into the J1 modem header. 3. Remove the blanking plate adjacent to the Fax/Modem DAA module.
Line & Tel RJ11 Sockets

Modem DAA Module

Modem Header
Optional Digital Audio Extension Bracket This bracket has two RCA jacks for digital audio in and digital audio out, and an auxiliary jack for a Stereo Line-in device.
SPDIF1 Stereo Line-in SPDIF In SPDIF Out
Digital Audio Extension Bracket
1. On the mainboard, locate the SPDIF1 header for this bracket. 2. Plug the cable from the bracket into the SPDIF1 header. 3. In the system chassis, remove a blanking plate from one of the expansion slots and install the extension bracket in the slot. Use the screw that held the blanking plate in place to secure the extension bracket.
Optional Infrared Port The mainboard has an infrared header SIR1 so that you can install an optional serial infrared port.
1. On the mainboard locate the infrared port header SIR1. 2. Connect the ribbon cable from the port to the header SIR1 and then secure the port to an appropriate place in your system chassis.

Install Other Devices

Install and connect any other devices in the system following the steps below.

FDDIDE1 IDE2

Floppy Disk Drive The mainboard ships with a floppy disk drive cable that can support one or two drives. Drives can be 3.5 or 5.25 wide, with capacities of 360K, 720K, 1.2MB, 1.44MB, or 2.88MB.
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 FDD1. 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 IDE 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. On the mainboard, locate the two 4-pin connectors for CD1 and CD2. There are two kinds of connector because different brands of CD-ROM drive have different kinds of cable connectors on their audio output cable. Connect the cable to the appropriate connector.

Expansion Slots

This mainboard has one AGP slot, four PCI 32-bit expansion slots and two 8/16-bit ISA slots. The PCI slot PCI4 is shared with the ISA slot ISA1. This means that you can use either of these slots but not both at the same time.

ISA1 PCI3 PCI1

PCI2 AGP1
Use the AGP1 slot to install an AGP graphics adapter. Use the PCI slots to install 32-bit PCI expansion cards. Use the ISA slots to install legacy 8/16-bit expansion cards. Installing an Expansion Card 1. Locate the AGP, PCI or ISA slot on the mainboard. 2. Remove the blanking plate from the appropriate expansion slot on the system chassis. 3. Install the edge connector of the expansion card into the slot and press it quite firmly down so that it is seated correctly. 4. Secure the bracket of the expansion card into the expansion slot in the system chassis using the screw that held the blanking plate in place. Wake Up Connectors and Sideband1 You can use these connectors if you have installed a fax/modem expansion card, a network adapter card, or a PCI Sound Blaster audio expansion card.

Sideband1

WOL1 WOM1
Wake On LAN If you have installed a network adapter card, connect the adapter to the wake on LAN connector WOL1. You can then use the setup utility to program your computer to resume from a power saving mode whenever there is traffic through the network. Wake On Modem If you have installed a fax/modem card, connect the fax/modem to the wake on modem connector WOM1. You can then use the setup utility to program your computer to resume from a power saving mode whenever there is an incoming call to the fax/modem. SB-Link If you have installed a PCI Sound Blaster audio card, connect the card to the SB-Link connector SIDEBAND1. The SB-Link connector solves some problems that can occur if you try to play some DOS real mode games using a PCI Sound Blaster card.

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. 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 drives, etc.

Running the Setup Utility
Each time your computer starts, before the operating system is booted, a message appears on the screen that prompts Press DEL to run SETUP. When you see this message, press the Delete key and the Main Menu page of the setup utility appears on your monitor.
You can use the cursor arrow keys to highlight any of the options on the Main Menu 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 Main Menu 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 Main Menu 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 23
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.

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 Primary Master Primary Slave Secondary Master Secondary Slave
Use these items to install your system with the correct date and time These items show the characteristics of any hard disk drives on the four available IDE channels. (Note that SCSI hard disk drives do not appear here.) You can automatically install most modern hard disks using the IDE HDD Auto Detect Option from the main menu. However, if you find that a drive cannot be automatically detected, you can use these items to manually enter the characteristics of the drive. The documentation provided with your drive provides the data you need to fill in the values for CYLS (cylinders), HEAD (read/write heads), and so on. 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
Floppy 3 Mode Support Video Halt On
Floppy 3 Mode refers to a 3.5 diskette with a capacity of 1.2 MB. This diskette is sometimes used in Japan This item defines the video mode of your system. Set it to EGA/VGA. This item determines what kind of errors are sufficient to halt the system.
BIOS & CPU Features Setup Page

This item allows the video BIOS to be copied to system memory for faster execution. These items allow the BIOS of other devices to be copied to system memory for faster execution. Use this item to set the clock rate for your processor. When you set a clock rate, the following two items CPU Host Bus Frequency and CPU Core:Bus Freq. Multiple are automatically set. If you set the item above, CPU Internal Core Speed, to Manual, you can use these two items to set the system bus speed and the CPU clock rate. After you set the CPU Host Bus Frequency (system bus), set a multiple in the CPU Core: Bus so that Bus Freq. Multiple X Host Bus Frequency = Processor Clock Rate. Use this item to set the core voltage for your processor. We recommend that you leave this item at the default value.
CPU Host Bus Frequency CPU Core:Bus Freq. Multiple

CPU Core Voltage

Chipset Features Setup Page
This page sets some of the timing parameters for your system. Before making changes to this page, you must ensure that your hardware supports the new values.
Bank 0/1, 2/3, 4/5 DRAM Timing SDRAM Cycle Length DRAM Clock Memory Hole Read Around write
These items set the timing for a memory module installed in the first, 2nd or/and 3rd DIMM socket. Leave these items at the default value. This item install timing parameters for the installed SDRAM memory. We recommend that you leave this item at the default value. This item install timing parameters for the installed SDRAM memory. We recommend that you leave this item at the default value. This item can be used to reserve memory space for some ISA expansion cards that require it. This item determines the operation of the systems read and write operations. Leave this item at the default value. This item allows concurrent operation for the system PCI bus. We recommend that you leave this item at the default value. These items allow the video and/or system to be cached in memory for faster execution. Wee recommend that you leave these items at the default value. This item defines an aperture size for an AGP graphics adapter. It defines the section of the PCI memory address space reserved for graphics. This item allows the speed of the AGP graphics bus to be doubled. Leave this item at the default value. Use the items on the right side of the screen to install the parameters for the system hardware monitoring feature. When the system begins to operate outside the parameters that you select, a warning will be given.
Concurrent PCI/Host System BIOS Cacheable Video BIOS Cacheable AGP Aperture Size

AGP-2X Mode

CPU Warning Temperature Current CPU Temperature, etc.
Power Management Setup Page
This page sets some of the parameters for the system power management operation.

ACPI Function

This mainboard supports ACPI (Advanced Configuration and Power Management Interface.) Use this item to turn the feature on or off. Use this item to enable or disable power management. If you set to Max Saving, the system powerdown timeouts are short. If you set to Min Saving, the powerdown timeouts are longer. If you set to User Define, you can set the powerdown timeouts manually using the items below. If you enable this item, it allows an operating system with APM (Advanced Power Management) such as WIN 95/98 to operate power management routines on your system. This item defines which power-saving mode is required to power down the video. This item defines how the video is powered down.

Primary INTR IRQ3 to IRQ15
PNP / PCI Configuration 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.

PNP OS Installed

Enable this item if you are using an O/S that supports Plug and Play such as Windows 95 or 98. This item lets you select for Automatic or Manual configuration of devices. If you set it to manual, new items appear. You can use these items to reserve an interrupt request line (IRQ) and a DMA channel for the device by setting the value to Legacy ISA. Your system stores information on the configuration of Plug and Play devices. If you enable this item, the system will delete the current data and create new data at the next system start up. If this item is enabled, an IRQ will be assigned to the PCI VGA graphics system. Use these items to enabled or disabled the onboard sound system and fax/modem.

Resources Controlled By

Reset Configuration Data
Assign IRQ for VGA Onboard PCI Audio, Modem

Load BIOS Defaults

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 BIOS default values. The BIOS default values are not very demanding and they should allow your system to function with most kinds of hardware and memory chips.

Load Optimum 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 setup default values. The setup default values are quite demanding and your system might not function properly if you are using slower memory chips or other kinds of low-performance components.
Integrated Peripherals Page
This page sets some of the parameters for peripheral devices installed on the system.
OnChip IDE Channel0 OnChip IDE Channel1 IDE Prefetch Mode IDE Primary / Secondary Master / Slave PIO IDE Primary / Secondary Master / Slave UDMA Init Display First
Use this item to enable or disable the onboard primary IDE channel. Use this item to enable or disable the onboard secondary IDE channel. This item speeds performance be allowing prefetching of data from an IDE device. The primary and secondary IDE channels can each support a Master and Slave device. Use these items to enable a Programmable Input/Output mode for each of the devices. The primary and secondary IDE channels can each support a Master and Slave device. Use these items to enable an UltraDMA mode for each of the devices. Use this item to define if your graphics adapter is installed in one of the PCI slots, or if you have installed an AGP graphics adapter into the AGP slot.

POWER On Function KB Power On Password Hot Key Power On
The Power On Function item allows you to power on the system by pressing hot-keys, or typing a password. If you choose Password, you can use the item KB Power On Password to install a power on password. If you set it to Hot Key, you can then use the item Hot Key Power On to choose which hot keys are installed. This item set the timing for the keyboard controller input clock. Leave this item at the default value. Use this item to enable or disable the onboard floppy disk drive controller. Use this item to enable or disable the onboard serial port COM1, and to assign a port address. Use this item to enable or disable the onboard serial port COM2, and to assign a port address. This item defines the operation of serial port 2. In the Normal setting, serial port 2 is assigned to the external COM2 connector. If you have installed an optional infrared port, you must change the setting of this item to one of the Infrared settings (usually IrDA or FIR). These settings will disable the external COM2 serial port connector and assign the resources to the infrared device. If you have selected an IR mode, two items appear, RxD, TxD Active and IR Transmission delay, which let you set the duplex and transmission parameters for the Infrared port. See the documentation of your infrared port for help on these items. Use this item to define if the optional infrared port is full or half duplex. Use this item to enable or disable the onboard parallel port LPT1, and to assign a port address. Use this item to determine the parallel port mode. You can select Normal, ECP (Extended Capabilities Port), EPP (Enhanced Parallel Port), or ECP + EPP.
KBC input clock Onboard FDC Controller Onboard Serial Port1 Onboard Serial Port2 UART Mode Select
UART2 Duplex Mode Onboard Parallel Port Parallel Port Mode
ECP Mode Use DMA PWRON After PWR-Fail USB Controller USB Keyboard Support
If you have installed the parallel port with ECP mode, use this item to assign a DMA channel to the port. Use this item to set a system power state when power restores after sudden AC power loss. Use this item to enable or disable the onboard USB ports. Use this item to enable or disable support for a USB keyboard.

Password Settings

If you highlight these items and press Enter, a dialog box appears which lets you enter a password. You can enter no more than eight letters or numbers. Press Enter after you have typed in the password. A second dialog box asks you to retype the password for confirmation. Press Enter after you have retyped it correctly. The password is required at boot time, or when the user enters the setup utility. Change or Remove the Password Highlight the items and type in the current password. At the next dialog box, type in the new password, or just press Enter to disable password protection.

IDE HDD Auto Detection

This item automatically detects and installs any hard disk drives installed on the primary and secondary IDE channel. Most modern drives can be detected. If you are using a very old drive that cant be detected, you can install it manually. Setup will check for two devices on the primary IDE channel and then two devices on the secondary IDE channel. At each device, the system will flash an N in the dialog box. Press Enter to skip the device and proceed to the next device. Press Y, then Enter to tell the system to auto-detect the device.

Save and Exit Setup

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

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 Sound Pro 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.