DFI ST2K Series User Manual

ST2K Series

Rev. C System Board User’s Manual

935-ST2K01-600

41830305

This publication contains information that is protected by copyright. No part of it may be reproduced in any form or by any means or used to make any transformation/adaptation without the prior written permission from the copyright holders.

This publication is provided for informational purposes only. The manufacturer makes no representations or warranties with respect to the contents or use of this manual and specifically disclaims any express or implied warranties of merchantability or fitness for any particular purpose. The user will assume the entire risk of the use or the results of the use of this document. Fur ther, the manufacturer reserves the right to revise this publication and make changes to its contents at any time, without obligation to notify any person or entity of such revisions or changes.

Trademarks

Microsoft® MS-DOS®, WindowsTM, Windows® 95 and Windows® 98 are registered trademarks of Microsoft Corporation. Intel®, Pentium

III and CeleronTM are registered trademarks of Intel Corporation. Award is a registered trademark of Award Software, Inc. Other trademarks and registered trademarks of products appearing in this manual are the properties of their respective holders.

Caution

To avoid damage to the system:

• Use the correct AC input voltage range

To reduce the risk of electric shock:

• Unplug the power cord before removing the system chassis cover for installation or servicing. After installation or servicing, cover the system chassis before plugging the power cord.

Battery:

• Danger of explosion if battery incorrectly replaced.

• Replace only with the same or equivalent type recommend

the manufacturer.

• Dispose of used batteries according to the battery manufacturer’s

instructions.

Joystick or MIDI port:

• Do not use any joystick or MIDI device that requires more than 10A current at 5V DC. There is a risk of fire for devices that exceed this limit.

FCC and DOC Statement on Class B

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 when the equipment is operated in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, 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 into 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.

Notice:

1. The changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

2. Shielded interface cables must be used in order to comply with the emission limits.

Table of Contents

Chapter 1 - Introduction

1.1 Features and Specifications..................................................................................

1.2 Package Checklist.........................................................................................................

Chapter 2 - Hardware Installation

2.1 System Board Layout ...........................................................................................

2.2 System Memory...........................................................................................................

2.3 Jumper Settings for Clearing CMOS Data........................................

2.4 Jumper Settings for Wake-On-Keyboard/Mouse..................................

2.5 Jumper Settings for the Onboard LAN...............................................

2.6 Jumper Settings for the Boot Block Lock/Unlock........................

2.7 Ports and Connectors...........................................................................................

Chapter 3 - Award BIOS Setup Utility

3.1 The Basic Input/Output System.....................................................................

3.1.1 Standard CMOS Features..............................................................

3.1.2 Advanced BIOS Features................................................................

3.1.3 Advanced Chipset Features .......................................................

3.1.4 Integrated Peripherals..........................................................................

3.1.5 Power Management Setup.............................................................

3.1.6 PnP/PCI Configurations.....................................................................

3.1.7 System Health Monitor......................................................................

3.1.8 CPU Frequency Control...................................................................

3.1.9 Load Fail-Safe Defaults......................................................................

3.1.10 Load Optimized Defaults...............................................................

3.1.11 Set Supervisor Password................................................................

3.1.12 Set User Password...............................................................................

3.1.13 Save & Exit Setup..................................................................................

3.1.14 Exit Without Saving...............................................................................

47 47 51 55 58 65 69 71 72 73 74 74 75 75 75

14 15 17 18 20 21 22

87 87

Chapter 4 - Supported Softwares

4.1 Desktop Management Interface.....................................................................

4.2 Hardware Doctor Utility........................................................................................

4.3 Intel 810 INF Update Utility for Windows 95/98....................

4.4 IDE, USB and Firmware Hub Patch Utility for Intel 810........

4.5 Intel 810 Graphics Drivers for Windows..............................................

4.6 SoundMAX Audio Drivers for Windows...............................................

4.7 Intel 82559 LAN Driver for Windows....................................................

4.8 Drivers and Utilities Installation Notes.....................................................

Appendix A - Using the Suspend to RAM

Function

A.1 Using the Suspend to RAM Function........................................................

Appendix B - System Error Messages

B.1 POST Beep.......................................................................................................................

B.2 Error Messages..............................................................................................................

Appendix C - Troubleshooting

C.1 Troubleshooting Checklist....................................................................................

76 79 79 80 80 81 81 81

Introduction

1.1 Features and Specifications

1.1.1 Features

Chipset

• Intel® 810-E

Processor

The system board is equipped with Socket 370. It is also equipped with a switching voltage regulator that automatically detects 1.30V to 2.05V.

• Pentium® III FCPGA 133MHz FSB processor

• Pentium® III FCPGA 100MHz FSB processor

• CeleronTM PPGA and FCPGA 66MHz FSB processors

System Memory

• 16MB to 512MB memory using unbuffered DIMMs

• Two 168-pin DIMM sockets

• Uses x64 PC-100 SDRAM DIMM, 3.3V

Chapter 1 - Introduction

DIMMs

2MBx64 4MBx64 8MBx64 16MBx64 32MBx64

Memory Size

16MB 32MB 64MB 128MB 256MB

Introduction

Expansion Slot/Connector

The system board is equipped with a two-slot PCI Riser Card.

It is also equipped with a daughterboard docking connector. Refer to “Daughterboard Docking Connector” in chapter 2 for more information.

Onboard Graphics Features

• Graphics memory

- Shares 1MB of the system memory. This is fixed regardless of

the size of the system memory.

- Uses Dynamic Video Memory Technology (DVMT). This freely

changes in size because graphics memory is allocated from the system memory according to current needs.

- 4MB onboard display cache

• Graphics controller

- 133MHz super AGP performance using 4MB display cache

memory

- 3D hyper pipelined architecture

- 2D hardware and motion video acceleration

- 9-bit precision hardware motion compensation

assistance for software MPEG2 decode

- Software DVD at 30fps

• Resolutions: up to 1600x1200 in 256 color at 75Hz refresh

• Software drivers

- Windows® 95/98/ME

- Windows® 2000

- Windows NT® 4.0

Onboard Audio Features

• Supports Microsoft® DirectSound/DirectSound 3D

• 32-voice wavetable synthesis

• 3D positional audio effects

• AC’97 suppor ted with full duplex, independent sample rate converter for audio recording and playback

• Downloadable sound (DLS) level-1

• Headphone amplifier

Introduction

Onboard LAN Features

• Uses Intel 82559 fast ethernet controller

• Integrated IEEE 802.3 10BASE-T and 100BASE-TX compatible PHY

• 32-bit PCI master interface

• Integrated power management functions

• Full duplex support at both 10 and 100 Mbps

• Supports IEEE 802.3u auto-negotiation

• Supports Wired for Management (WfM) feature

Compatibility

• Microsoft PC ’98 compliant

• VESA Display Power Management Signaling (DPMS)

• VESA DDC2B for Plug and Play monitors

• PCI 2.2, AMR 1.0 and AC ’97 compliant

ATX Double Deck Ports (PC 99 color-coded connectors)

• 2 USB ports

• 1 DB-9 serial port

• 1 DB-15 VGA port

• 1 DB-25 parallel port

• 1 mini-DIN-6 PS/2 mouse port

• 1 mini-DIN-6 PS/2 keyboard port

• 1 game/MIDI port

• 3 audio jacks: speaker-out, line-in and mic-in

• 1 RJ45 LAN port

Connectors

• 1 connector for 2 additional external USB por ts

• 3 9-pin connectors for external serial ports

• 1 connector for external headphone/mic

• 1 connector for IrDA interface

• 2 IDE connectors

• 1 floppy connector

• 1 20-pin ATX power supply connector

• 1 Wake-On-LAN connector

• 1 Wake-On-Ring connector

• 3 connectors for CPU, chassis and second chassis fans

Introduction

• 1 opened chassis alarm connector

• 4 internal audio connectors (video-in, AUX-in, CD-in and TAD)

• 2 power connectors for touchscreen (optional)

• 1 connector for LCD interface board

PCI Bus Master IDE Controller

• Two PCI IDE interfaces support up to four IDE devices

• Supports Ultra ATA/66 hard drives

• PIO Mode 4 Enhanced IDE (data transfer rate up to 14MB/sec.)

• Bus mastering reduces CPU utilization during disk transfer

• Supports ATAPI CD-ROM, LS-120 and ZIP

IrDA Interface

The system board is equipped with an IrDA connector for wireless connectivity between your computer and peripheral devices. It supports peripheral devices that meet the IrDA or ASKIR standard.

USB Ports

The system board supports 4 USB ports. USB allows data exchange between your computer and a wide range of simultaneously accessible external Plug and Play peripherals. Refer to “Universal Serial Bus Ports” in chapter 2 for more information.

BIOS

• Award BIOS, Windows® 95/98 Plug and Play compatible

• Supports SCSI sequential boot-up

• Flash EPROM for easy BIOS upgrades (4Mbit)

• Includes NCR 810 SCSI BIOS

• Supports DMI 2.0 function

Desktop Management Interface (DMI)

The system board comes with a DMI 2.0 built into the BIOS. The DMI utility in the BIOS automatically records various information about your system configuration and stores these information in the DMI pool, which is a part of the system board's Plug and Play BIOS. DMI, along with the appropriately networked software, is designed to make inventory, maintenance and troubleshooting of computer systems easier. Refer to chapter 4 for instructions on using the DMI utility.

Introduction

PCB

• 4 layers, FlexATX form factor

• 22.8cm (9") x 19cm (7.5")

Note:

The system board is designed to fit into a FlexATX chassis. It provides PCI expansion by installing a two-slot PCI Riser Card. You may also install the system board into a microATX chassis but you will be confined to one PCI expansion slot only. Please refer to “Expansion Slots” in chapter 2 for more information.

1.1.2 System Health Monitor Functions

The system board is capable of monitoring the following “system health” conditions.

• Monitors processor/system temperature and overheat alarm

• One optional temperature sensor for user customization

• Monitors 5VSB/VBAT/1.5V/3.3V/5V/±12V/processor voltages and failure alarm

• Monitors processor/chassis/second chassis fan speed, controls processor/chassis fan speed and failure alarm

• Automatic fan on/off control

• Read back capability that displays temperature, voltage and fan speed

• Opened chassis alarm

• Supports CeleronTM processor thermal diode output (real processor temperature)

Refer to “System Health Monitor” in chapter 3 and “Hardware Doctor Utility” in chapter 4 for more information.

1.1.3 Intelligence

Automatic CPU/Chassis Fan Off

The CPU and chassis fans will automatically turn off once the system enters the Suspend mode.

Introduction

Dual Function Power Button

Depending on the setting in the “Soft-Off By PWR-BTTN” field of the Power Management Setup, this switch will allow the system to enter the Soft-Off or Suspend mode.

Wake-On-Ring

This feature allows the system that is in the Suspend mode or Soft Power Off mode to wake-up/power-on to respond to calls coming through an internal or external modem. Refer to “Wake-On-Ring Connector” in chapter 2 for more information.

RTC Timer to Power-on the System

The RTC installed on the system board allows your system to automatically power-on on the set date and time.

Wake-On-LAN

The Wake-On-LAN function allows the network to remotely wake up a Soft Power Down (Soft-Off) PC. Your LAN card must support the remote wakeup function.

Important:

If you are using the (1) Suspend to RAM, (2) Wake-OnKeyboard/Mouse and (3) Wake-On-LAN functions all at the same time, the 5VSB power source of your power supply must support a minimum of ≥1A. A ≥720mA 5VSB power source is sufficient if you are using only one or two of these functions.

Wake-On-Keyboard/Wake-On-Mouse

This function allows you to use the keyboard or PS/2 mouse to power-on the system. Refer to “Jumper Settings for Wake-OnKeyboard/Wake-On-Mouse” in chapter 2 and “Keyboard/Mouse Power On” in the Integrated Peripherals section in chapter 3 for more information.

Important:

• The power button will not function once a keyboard password has been set in the “KB Power On Password” field of the Integrated Peripherals submenu. You must type the correct password to power-on the system. If you forgot

Introduction

the password, power-off the system and remove the battery. Wait for a few seconds and install it back before powering-on the system.

• If you are using the (1) Suspend to RAM, (2) Wake-OnKeyboard/Mouse and (3) Wake-On-LAN functions all at the same time, the 5VSB power source of your power supply must support a minimum of ≥1A. A ≥720mA 5VSB power source is sufficient if you are using only one or two of these functions.

AC Power Failure Recovery

When power returns after an AC power failure, you may choose to either power-on the system manually, let the system power-on automatically or return to the state where you left off before power failure occurs. Refer to “PWR Lost Resume State” in the Integrated Peripherals section in chapter 3 for more information.

Year 2000 Compliant

• Supports hardware Y2K function.

• Supports hardware Random Number Generator (RNG) to enable a new security and manageability infrastructure for PC.

ACPI

The system board is designed to meet the ACPI (Advanced Configuration and Power Interface) specification. ACPI has energy saving features that enables PCs to implement Power Management and Plug-and-Play with operating systems that support OS Direct Power Management. Currently, only Windows

®®

98 supports the ACPI function. ACPI when enabled in the Power Management Setup will allow you to use the Suspend to RAM function.

With the Suspend to RAM function enabled, you can power-off the system at once by pressing the power button or selecting “Standby” when you shut down Windows

®®

98 without having to go through the sometimes tiresome process of closing files, applications and operating system. This is because the system is capable of storing all programs and data files during the entire operating session into RAM (Random Access Memory) when it powers-off. The operating session will resume exactly where you left off the next time

Introduction

you power-on the system. Refer to “Using the Suspend to RAM

Function” in appendix A for more information.

Important:

Virus Protection

Most viruses today destroy data stored in hard drives. The system board is designed to protect the boot sector and partition table of your hard disk drive.

1.2 Package Checklist

The system board package contains the following items:

; The system board ; A user’s manual  One card-edge bracket with a serial port (optional) ; One USB card with two USB ports ; One riser card ; One I/O shield ; One 3SM5 daughterboard ; One “Main Board Utility” CD  One “CyberLink PowerDVD” CD (optional)

If any of these items are missing or damaged, please contact your dealer or sales representative for assistance.

Hardware Installation

2.1 System Board Layout

Chapter 2 - Hardware Installation

Hardware Installation

2.2 System Memory

The system board is equipped with two 168-pin DIMM (Dual Inline Memory Module) sockets that support unbuffered PC-100 SDRAM DIMM. PC SDRAM (Synchronous Dynamic Random Access Memory) is a fast memory interface technology that uses the clock on the chip to synchronize with the CPU clock so that the timing of the memory chips and the timing of the CPU are synchronized. This saves time during transmission of data, subsequently increasing system performance.

The onboard VGA shares 1MB of the system memory. This is fixed regardless of the size of the system memory. Aside from the 1MB shared memory, it also uses Dynamic Video Memory Technology (DVMT). DVMT freely changes in size because graphics memory is allocated from the system memory according to current needs.

Refer to chapter 1 for the type of memory supported by the system board.

Display Cache

The system board is mounted with 2 SDRAMs that serve as 4MB display cache. The presence of the display cache will provide better system performance.

Warning:

Electrostatic discharge (ESD) can damage your system board, processor, disk drives, add-in boards, and other components. Perform the upgrade instruction procedures described at an ESD workstation only. If such a station is not available, you can provide some ESD protection by wearing an antistatic wrist strap and attaching it to a metal part of the system chassis. If a wrist strap is unavailable, establish and maintain contact with the system chassis throughout any procedures requiring ESD protection.

Hardware Installation

1. Pull the “tabs” which are at the ends of the socket to the side.

2. Position the DIMM above the socket with the “notches” in the

module aligned with the “keys” on the socket.

3. Seat the module vertically into the socket. Make sure it is

completely seated. The tabs will hold the DIMM in place.

Pin 1

Notch

Key

Tab

2.2.1 Installing the DIM Module

A DIM module simply snaps into a DIMM socket on the system board. Pin 1 of the DIM module must correspond with Pin 1 of the socket.

Hardware Installation

2.3 Jumper Settings for Clearing CMOS Data

Clear CMOS Data - Jumper JP5

If you encounter the following,

a) CMOS data becomes

corrupted.

b) You forgot the supervisor or

user password.

c) You are unable to boot-up the

computer system because the processor’s clock/ratio was incorrectly set in the BIOS.

you can reconfigure the system with the default values stored in the ROM BIOS.

To load the default values stored in the ROM BIOS, please follow the steps below.

1. Power-off the system.

2. Set JP5 pins 2 and 3 to On. Wait for a few seconds and set JP5 back to its default setting, pins 1 and 2 On.

3. Now power-on the system.

If your reason for clearing the CMOS data is due to incorrect setting of the processor’s clock/ratio in the BIOS, please proceed to step 4.

4. After powering-on the system, press <Del> to enter the BIOS setup utility.

5. Select the CPU Frequency Control submenu and press <Enter>.

6. Set the “CPU/PCI Clock (MHz)” or “CPU Clock Ratio” field to its default setting or an appropriate bus clock or frequency ratio. Refer to the CPU Frequency Control section in chapter 3 for more information.

Hardware Installation

2-3 On:

Clear CMOS Data

1-2 On: Normal

(default)

2.4 Jumper Settings for Wake-On-Keyboard/ Wake-On-Mouse

Wake-On-Keyboard/Wake-On-Mouse - Jumper JP1

The Wake-On-Keyboard/Wake-OnMouse function allows you to use the keyboard or PS/2 mouse to power-on the system. By default, JP1 is disabled. To use this function, set JP1 to 2-3 On. “Keyboard/Mouse Power On” in the Integrated Peripherals submenu of the BIOS must be set accordingly. Refer to chapter 3 for details.

Warning:

1. If JP1 was enabled with a password set in the “KB Power On Password” field, and now you wish to disable the keyboard password function, make sure to set the “Keyboard/Mouse Power On” field to Disabled prior to setting JP1 to disabled. You will not be able to boot-up the system if you fail to do so.

2. The power button will not function once a keyboard password has been set in the “KB Power On Password” field of the Integrated Peripherals submenu. You must type the correct password to power-on the system.

7. Press <Esc> to return to the main menu of the BIOS setup utility. Select “Save & Exit Setup” and press <Enter>.

8. Type <Y> and press <Enter>.

Hardware Installation

123 123

2-3 On: Enabled1-2 On: Disabled

(default)

3. If you are using the (1) Suspend to RAM, (2) Wake-OnKeyboard/Mouse and (3) Wake-On-LAN functions all at the same time, the 5VSB power source of your power supply must support a minimum of ≥1A. A ≥720mA 5VSB power source is sufficient if you are using only one or two of these functions.

Hardware Installation

2.5 Jumper Settings for the Onboard LAN

Onboard LAN Settings - Jumper JP2

This jumper is used to enable or disable the onboard LAN. By default, the onboard LAN is enabled.

2-3 On:

Onboard LAN Disabled

1-2 On:

Onboard LAN Enabled

(default)

Hardware Installation

2.6 Jumper Settings for the Boot Block Lock/Unlock

Boot Block Lock/Unlock - Jumper JP4

This jumper is for factory use only. Please leave it in its default setting.

2-3 On:

Lock Boot Block

1-2 On:

Unlock Boot Block

(default)

Hardware Installation

2.7 Ports and Connectors

2.7.1 Serial Ports

The built-in serial ports are RS-232C asynchronous communication ports with 16C550A-compatible UARTs that can be used with modems, serial printers, remote display terminals, and other serial devices. You can set the serial por ts’ I/O address in the Integrated Peripherals submenu of the BIOS.

The system board is equipped with two I/O chips that support 4 COM ports. The onboard serial port (CN1 - Teal/ Turquoise) for COM 1 primary serial port is located at the ATX double deck ports of the board.

The 9-pin connector (COM 2) is for secondary serial port. One optional card-edge bracket mounted with a serial port cable may be provided with the system board. If you want to use the secondary serial port, connect the serial port cable to COM 2. Make sure the colored stripe on the ribbon cable is aligned with pin 1 of COM 2. Mount the card-edge bracket to the system chassis.

COM 3 and COM 4, which are located next to DIMM 2, are connectors for touchscreens.

Hardware Installation

2.7.2 PS/2 Mouse and PS/2 Keyboard Ports

The system board is equipped with an onboard PS/2 mouse (Green) and PS/2 keyboard (Purple) ports

- both at location CN9 of the system board’s ATX double deck ports. The PS/2 mouse port uses IRQ12. If a mouse is not connected to this port, the system will reserve IRQ12 for other expansion cards.

Warning:

Make sure to turn off your computer prior to connecting or disconnecting a mouse or keyboard. Failure to do so may damage the system board.

2.7.3 Parallel Port

The system board has a standard printer port (CN2 - Burgundy) located at the ATX double deck ports of the board for interfacing your PC to a parallel printer. It supports SPP, ECP and EPP modes. You can set the por t’s mode in the Integrated Peripherals submenu of the BIOS.

Hardware Installation

2.7.4 Floppy Disk Drive Connector

The system board is equipped with a shrouded floppy disk drive connector that supports two standard floppy disk drives. To prevent improper floppy cable installation, the shrouded floppy disk header has a keying mechanism. The 34-pin connector on the floppy cable can be placed into the header only if pin 1 of the connector is aligned with pin 1 of the header. You may enable or disable this function in the Integrated Peripherals submenu of the BIOS.

Connecting the Floppy Disk Drive Cable

1. Install the 34-pin header connector into the shrouded floppy disk header (J6) on the system board. The colored edge of the ribbon should be aligned with pin 1 of J6.

2. Install the other 34-pin header connector(s) into the disk drive(s). Align the colored edge of the daisy chained ribbon cable with pin 1 of the drive edge connector(s). The end-most connector should be attached to the drive you want to designate as Drive A.

Setting

SPP (Standard Parallel Port)

ECP (Extended Capabilities Port)

EPP (Enhanced Parallel Port)

Function

Allows normal speed operation but in one direction only.

Allows parallel port to operate in bidirectional mode and at a speed faster than the SPP’s data transfer rate.

Allows bidirectional parallel port operation at maximum speed.

Hardware Installation

2.7.5 IDE Disk Drive Connector

The system board is equipped with two shrouded PCI IDE headers that will interface four Enhanced IDE (Integrated Drive Electronics) disk drives. To prevent improper IDE cable installation, each shrouded PCI IDE header has a keying mechanism. The 40-pin connector on the IDE cable can be placed into the header only if pin 1 of the connector is aligned with pin 1 of the header.

Connecting the IDE Disk Drive Cable

1. If you are connecting two IDE drives, install the 40-pin connector of the IDE cable into the primary shrouded IDE header (connector J17). If you are adding a third or fourth IDE device, install the 40-pin connector of the other IDE cable into the secondary shrouded IDE header (connector J26).

2. Install the other 40-pin header connector(s) into the device with the colored edge of the ribbon cable aligned with pin 1 of the drive edge connector(s).

Note:

Refer to your disk drive user’s manual for information about selecting proper drive switch settings.

Adding a Second IDE Disk Drive

When using two IDE drives, one must be set as the master and the other as the slave. Follow the instructions provided by the drive manufacturer for setting the jumpers and/or switches on the drives.

The system board supports Enhanced IDE or ATA-2, ATA/33 or ATA/66 hard drives. We recommend that you use hard drives from the same manufacturer. In a few cases, drives from two different manufacturers will not function properly when used together. The problem lies in the hard drives, not the system board.

Hardware Installation

2.7.6 Universal Serial Bus Ports

The system board supports 4 USB ports. USB allows data exchange between your computer and a wide range of simultaneously accessible external Plug and Play peripherals. You must have the proper drivers installed in your operating system to use the USB ports. Refer to your operating system’s manual or documentation.

Two onboard USB ports (CN4 Black) are located at the ATX double deck ports of the board.

The 9-pin connector (J18 - USB 2) on the system board allows you to connect 2 additional external USB ports. One USB card mounted with two USB ports is provided with the system board. If you want to use these ports, mount the USB card to the system chassis then insert the other end of the cable that is attached to J1 of the USB card to J18 on the system board. The cable connector can be inserted only if pin 1 of the cable is aligned with pin 1 of J18.

USB 2 (J18)

Function

VCC

-Data

+Data

Ground

Key

Function

VCC

-Data

+Data

Ground

Important:

If you encountered problems while using an ATAPI CD-ROM drive that is set in Master mode, please set the CD-ROM drive to Slave mode. Some ATAPI CD-ROMs may not be recognized and cannot be used if incorrectly set in Master mode.

USB Card

Hardware Installation

2.7.7 IrDA Connector

The system board is equipped with an IrDA connector for wireless connectivity between your computer and peripheral devices. The IRDA (Infrared Data Association) specification supports data transfers of 115k baud at a distance of 1 meter.

Connect your IrDA cable to connector J1 on the system board. Set “UART2 Mode Select” in the Integrated Peripherals submenu of the BIOS to the type of IrDA standard supported by your device. You must have the proper drivers installed in your operating system to use this connector. Refer to your operating system’s manual or documentation.

Function

VCC

CIRRX

IRRX

Ground

IRTX

Note:

The sequence of the pin functions on some IrDA cable may be reversed from the pin function defined on the system board. Make sure to connect the cable to the IrDA connector according to their pin functions.

Hardware Installation

2.7.8 CPU Fan Connector

The processor must be kept cool by using a fan with heatsink. Connect the CPU’s fan to the 3-pin fan connector at location J13 on the system board. The system is capable of monitoring and controlling the speed of the CPU fan. The CPU fan, together with the chassis fan, will automatically turn off once the system enters the Suspend mode.

2.7.9 Chassis Fan Connector

If you are installing a chassis fan in the system unit, connect the fan’s connector to location J20 on the system board. The fan will provide adequate airflow throughout the chassis to prevent overheat. The system is capable of monitoring and controlling the speed of the chassis fan. The chassis fan, together with the CPU fan, will automatically turn off once the system enters the Suspend mode.

Function

Ground

On/Off

Sense

Function

Ground

On/Off

Sense

+ 64 hidden pages

DFI ST2K Series User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual