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When installing a CPU heatsink and
Caution!
cooling fan make sure that you DO NOT
scratch the motherboard or any of the
surface-mount resistors with the clip of
the cooling fan. If the clip of the cooling
fan scrapes across the mainboard, you
may cause serious damage to both the
mainboard and the processor.
On most mainboards, there are small
surface-mount resistors near the proces-
sor socket, which may be damaged if the
cooling fan is carelessly installed.
Avoid using cooling fans with sharp
edges on the fan casing and the clips.
Also, install the cooling fan in a well-lit
work area so that you can clearly see the
mainboard and processor socket.

Important Information

Copyright
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 writ-
ten consent of the manufacturer.
Version 1.0
Disclaimer
The information in this document is subject to change without
notice. The manufacturer makes no representations or warranti-
es with respect to the contents hereof and specifically disclaims
any implied warranties of merchantability or fitness for any par-
ticular purpose. Furthermore, 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.
C ooling fan and
heat sink
C PU socket
i

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Summary of Contents for MATSONIC MS7057C

  • Page 1: Important Information

    When installing a CPU heatsink and Caution! cooling fan make sure that you DO NOT scratch the motherboard or any of the surface-mount resistors with the clip of the cooling fan. If the clip of the cooling C ooling fan and fan scrapes across the mainboard, you heat sink may cause serious damage to both the...
  • Page 2: Trademark Recognition

    Trademark Recognition Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp. MMX, Pentium, Pentium-II, Pentium-III, and Celeron are regis- tered trademarks of Intel Corporation. Other product names used in this manual are the properties of their respective owners and are acknowledged. 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...
  • Page 3: Declaration Of Conformity

    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, in- cluding interference that may cause undesired operation. Canadian Department of Communications This class B digital apparatus meets all requirements of the Ca- nadian Interference-causing Equipment Regulations.
  • Page 4: About The Manual

    About the Manual The manual consists of the following chapters: Introduction Use the Introduction Chapter to learn about the features of the mainboard and view a checklist of items that are shipped with the package. Installation Use the Installation Chapter to learn how to install the main- board and get your system up and running.
  • Page 5: Table Of Contents

    Contents Important Information ................ii Copyright ..................... ii Disclaimer....................ii Trademark Recognition ................iiii Federal Communications Commission (FCC) ...........iiii Declaration of Conformity ...............iiiiii Canadian Department of Communications..........iiiiii About the Manual ................iviv CHAPTER 1: INTRODUCTION Welcome....................1 Checklist ....................2 Recommendations................. 3 Features ....................
  • Page 6 Utility Folder Installation Notes ............67 Award Flash Memory Utility..............67 GAMUT ...................... 67 MediaRing Talk..................67 PC-cillin Software ..................67 Super Voice ....................67 Mainboard (MS7057C) Installation Notes ........... 68 APPENDIX: JUMPER SETTING REFERENCE Jumper Setting Quick Reference ..............69...
  • Page 7: Chapter 1: Introduction

    Welcome Congratulations on purchasing the MS7057C mainboard. The mainboard is an ATX mainboard that uses a 4-layer printed cir- cuit mainboard and measures 305 mm x 220 mm. The mainboard has a Socket 370 for FC-PGA Intel Celeron or FC- PGA Pentium III processors that support frontside bus (FSB) speeds up to 133 MHz.
  • Page 8: Checklist

    This chapter contains the following information: ! Checklist comprises a list of the standard and optional components that are shipped with this mainboard ! Recommendations lists some Do’s and Don’ts from the manufacturer to help ensure reliability and performance from this product ! Features highlights the functions and components that make this one of the best value mainboards on the mar- Checklist...
  • Page 9: Recommendations

    Recommendations This mainboard automatically determines the CPU clock fre- quency and frontside bus frequency for the kind of processor that you install. You may be able to change these automatic set- tings by changing the settings in the system Setup Utility. We strongly recommend that you do not overclock the mainboard to run processors or other components faster than their rated speed.
  • Page 10: Features

    Processors Functioning as a platform for a value PC, the MS7057C features a Socket 370 accommodating FC-PGA Celeron 533MHz (533A) and higher CPUs that support a 66 MHz FSB as well as FC- PGA Pentium III CPUs that support a 100 or 133 MHz FSB.
  • Page 11 4xAGP Graphics Adapter Slot The MS7057C includes a 4xAGP slot to support an AGP card that provides four times the bandwidth of the original AGP specification. The AGP design allows the graphics controller to...
  • Page 12 Integrated I/O The mainboard has a full set of I/O ports and connectors. The I/O template on the backplane includes two PS/2 ports for a mouse and keyboard, one serial port, one VGA port, one parallel port, one MIDI/game port, two USB ports and audio jacks for microphone, line-in and line-out.
  • Page 13: Chapter 2: Installation

    Quick Installation Table This chapter explains how to successfully install the mainboard into a computer case and build a working system. The installa- tion procedure is as follows: Before you Provides advice on choosing a case, Begin avoiding static electricity damage, and set- ting jumpers.
  • Page 14: Before You Begin

    Before You Begin During installation, avoid damaging the mainboard with static electricity. Ensure that you are installing the mainboard into a suitable case. Static Electricity In adverse conditions, static electricity can accumulate and dis- charge through the integrated circuits and silicon chips on this product.
  • Page 15: Choosing A Case

    Choosing a Case The mainboard complies with the specifications for the ATX system case. Some features on the mainboard are implemented by cabling connectors on the mainboard to indicators and switches on the system case. Ensure that your case supports all the features required.
  • Page 16: Preparing The Mainboard

    Preparing the Mainboard Mainboard Guide Use the following illustration and key to identify the components on your mainboard. JP12 JP11 JP10 DIMM 1 DIMM 2 DIMM 3 CPUFAN1 CPU1 LED1 IDE1 IDE2 FDD1 ATX1 SIR1 AGP1 PCI1 PANEL1 PCI2 PCI3 PCI4 CASFAN1 USB1...
  • Page 17: Key To Jumpers

    Key to Mainboard Components Component Description ATX1 Connector for ATX power supply CPUFAN1 Power connector for CPU cooling fan DIMM1/2/3 Three slots for 168-pin SDRAM memory module LED1 Red 3VSB LED for SDRAM IDE1/2 Primary and secondary IDE channels FDD1 Connector for floppy disk drives Chassis open detect jumper SIR1...
  • Page 18: I/O Ports Side View

    I/O Ports Side View PS/2 Parallel port (LPT1) G am e port m ouse PS/2 Serial port Serial port M icrophone keyboard ports CO M 1 CO M 2 Line-in Line-out Key to I/O Ports Component Description PS/2 mouse PS/2 port for pointing device (upper port) PS/2 keyboard PS/2 port for keyboard (lower port) USB ports...
  • Page 19: How To Set Jumpers

    How to Set Jumpers A jumper consists of two or more pins mounted on the main- board. Some jumpers might be arranged in a series with each pair of pins numbered differently. Jumpers are used to change the electronic circuits on the mainboard. When a jumper cap (or shunt) is placed on two jumper pins, the pins are SHORT.
  • Page 20: Check The Jumper Settings

    Check the Jumper Settings Check all the mainboard jumpers to ensure that the mainboard is configured correctly. Note: Pin 1 is indicated by a “1.” C P U FA N 1 JP 3 JP 6 JP 4 L E D 1 C D 1 C D 2 A G P 1...
  • Page 21 JP1: Clear BIOS jumper This jumper lets you erase the BIOS Setup Utility settings that are stored in CMOS memory. You might need to erase this data if incorrect settings are preventing your system from operating. You must first set JP2 to open before you can flash the CMOS. To clear the CMOS memory, turn off the system, disconnect the power cable from the mainboard, and short the appropriate pins for a few seconds.
  • Page 22 JP4: CPU frequency select jumper This jumper enables you to force the CPU to clock at a higher frequency than it is rated. Short pins 2 and 3 to force the CPU to run at a 100 MHz FSB instead of a 66 MHz FSB. We recom- mend that you leave the jumper on the normal operation setting.
  • Page 23 Jumper 8 – 12 pin settings Pin Settings Volt. VID0 VID1 VID2 VID3 VID4 Auto* 1.30V Open Open Open Open 1.35V Open Open Open 1.40V Open Open Open 1.45V Open Open 1.50V Open Open Open 1.55V Open Open 1.60V Open Open 1.65V Open...
  • Page 24: Installing The Mainboard In A Case

    Installing the Mainboard in a Case Most system cases have mounting brackets installed in the case, which correspond to the holes in the mainboard. Place the mainboard over the mounting brackets and secure the main- board into the mounting brackets with screws. Most cases have a choice of I/O templates in the rear panel.
  • Page 25: Connecting Internal Components

    Connecting Internal Components After you have installed the mainboard into the system case, connect the power cable from the case power supply unit to the mainboard power connector ATX1. Connect the CPU and case fans (if your case has them) to CPUFAN1 or CASFAN1 on the mainboard.
  • Page 26: Panel Connector

    Panel Connector The mainboard PANEL connector has a standard set of switch and indicator connectors that are commonly found on system cases. Use the illustration below to make the correct connec- tions to the case switches and indicators. Function Pins PANEL1 Power switch 22, 23...
  • Page 27: Installing Other Hardware

    Installing Other Hardware Start installing the essential hardware required to get your sys- tem started. Installing the Processor This mainboard has a Socket 370 processor socket. To choose a processor, you need to consider the performance require- ments of the system and the price of the processor. Performance is based on the processor design, the clock speed and frontside bus frequency of the processor, and the quantity of internal cache memory and external cache memory.
  • Page 28 1. Locate the Socket 370 and CPUFAN1. 2. Pull the Socket 370 locking lever away from the socket to un- hook it and then raise the locking lever to the upright position. CPU fan connector Socket 370 processor with CPUFAN1 heatsink/cooling fan attached Socket 370 with...
  • Page 29: Install The Memory Modules

    Install the Memory Modules Front Side Bus System Memory Bus For this mainboard, you (FSB) (SMB) must use 168-pin 3.3V non- Frequency Frequency buffered Dual In-line Memo- ry Modules (DIMMs). The 66 MHz 100 MHz memory chips are standard 100 MHz 100 MHz SDRAM (Synchronous Dy- namic Random Access...
  • Page 30: Installing A Hard Disk Drive And Cd-Rom

    2. The DIMM slots are keyed with notches and the DIMMs are keyed with cutouts so that they can only be installed cor- rectly. Check that the cutouts on the DIMM module edge connector match the notches in the DIMM slot. 3.
  • Page 31: Installing A Hard Disk Drive

    About UDMA This mainboard supports UltraDMA 33/66/100. UDMA is a tech- nology that speeds the performance of devices in the IDE channel. We recommend that you install IDE devices that sup- port UDMA, and use IDE cables that support UDMA. Installing a Hard Disk Drive 1.
  • Page 32 Installing a CD-ROM/DVD Drive 1. Install the CD-ROM/DVD drive into the drive cage in your system case. Plug the IDE cable into the primary IDE chan- nel on the mainboard IDE1. 2. Plug one of the connectors on the IDE cable into the IDE connector on the back edge of the CD-ROM/DVD drive.
  • Page 33: Installing A Floppy Diskette Drive

    Installing a Floppy Diskette Drive The mainboard has a floppy diskette drive interface and it ships with a diskette drive ribbon cable that supports one or two floppy diskette drives. You can install a 5.25-inch and a 3.5-inch drive with various capacities.
  • Page 34: Using The Expansion Slots

    Using the Expansion Slots This mainboard has six 32-bit PCI expansion slots, one 4xAGP slot, and a CNR slot. PCI Slots: The PCI slots can be used to install add-in cards that have the 32-bit PCI (Peripheral Components Interconnect) in- terface.
  • Page 35 1. Before installing an expansion card, check the documenta- tion for the card. If the card is not Plug and Play, you may have to manually configure the card before installation. 2. In the system case, remove the blanking plate from the slot in the system case that corresponds to the expansion slot that you are going to use.
  • Page 36: Other Options

    Other Options This section lists the other options that come with this mainboard. C PUFAN 1 LED 1 C D1 C D2 A GP1 SIR 1 PC I1 PC I2 PC I3 B T1 PC I4 W OL1 W OM 1 U SB1 PC I5 PC I6...
  • Page 37 SIR1: Serial Infrared Connector. Connect the cable from the optional IR port to SIR1 (for SIR in- frared). After you have connected the cable, secure the optional IR port to the appropriate location on your system case. This option can be purchased from third-party vendors. Note: An IR port may use some of the resources required by a second serial port or a fax/modem card.
  • Page 38: Making External Connections

    Making External Connections After you have installed the mainboard, make the connections to the external ports. Parallel port (LPT1) PS/2 G am e port m ouse PS/2 Serial port Serial port M icrophone keyboard ports CO M 1 CO M 2 Line-in Line-out 1.
  • Page 39: External Connector Color Coding

    External Connector Color Coding To help identify the external connectors, many connectors now use standard colors as shown in the table below. Connector Color Analog VGA Blue Audio line-in Light blue Audio line-out Lime Digital monitor / flat panel White IEEE 1394 Grey Microphone...
  • Page 40 — Notes —...
  • Page 41: Chapter 3: Setup

    About the Setup Utility The computer employs the latest Award BIOS CMOS chip with support for Windows Plug and Play. This CMOS chip contains the ROM setup instructions for configuring the mainboard’s BIOS. The BIOS (Basic Input and Output System) Setup Utility is a ROM-based configuration utility that displays the system’s configuration status and provides you with a tool to set system parameters.
  • Page 42 A standard configuration has already been set in the Setup Util- ity. However, we recommend that you read this chapter just in case you need to make any changes in the future. This program should be executed under the following conditions: When changing the system configuration When a configuration error is detected by the system and you are prompted to make changes to the Setup Utility...
  • Page 43: Entering The Setup Utility

    Entering the Setup Utility When the system is powered on, the BIOS will enter the Power- On Self Test (POST) routines. These routines perform various diagnostic checks; if an error is encountered, the error will be reported in one of two different ways: If the error occurs before the display device is initialized, a series of beeps will be transmitted.
  • Page 44: Bios Navigation Keys

    BIOS Navigation Keys Listed below are explanations of the keys displayed at the bottom of the screens: Function Escape key: Exits the current menu Cursor keys: Scroll through the items on a menu Plus, minus, Page Up and Page Down keys: Modify +/ /PU/PD the selected field’s values F10 key: Saves the current configuration and exits setup...
  • Page 45: Using Bios

    Using BIOS When you start the Setup Utility, the main menu appears. The main menu of the Setup Utility shows a list of the options that are available. A highlight indicates which option is currently se- lected. You can use the cursor arrow keys to move the highlight to other options.
  • Page 46: How To Flash A New Bios

    How to Flash a New BIOS You can install updated BIOS for this mainboard that you can download from the manufacturer’s web site. New BIOS may provide support for new peripherals, improvements in performance or fixes for known bugs. Install new BIOS as follows: 1.
  • Page 47: Standard Cmos Features Option

    8. In the “File Name to Program” dialog box, type in the file- name of the new BIOS and follow the onscreen directions to flash the new BIOS to the mainboard. 9. When the installation is complete, remove the floppy diskette from the diskette drive and restart your computer.
  • Page 48 IDE Devices Default: None Your computer has two IDE channels (Primary and Secondary) and each channel can be installed with one or two devices (Master and Slave). Use these items to configure each device on the IDE channel. Press <Enter> to display the IDE sub-menu: CMOS Setup Utility –...
  • Page 49 Note: Before attempting to configure a hard disk drive, make sure you have the configuration information supplied by the manufac- turer of your hard drive. Incorrect settings can result in your system not recognizing the installed hard disk. Access Mode This item defines some special ways that can be used to access IDE hard disks such as LBA (Large Block Addressing).
  • Page 50: Advanced Bios Features Setup Option

    Advanced BIOS Features Setup Option This option displays a table of items that define advanced infor- mation about your system. You can make modifications to most of these items without introducing fatal errors to your system. Note that the page has a scroll-bar to scroll down to more items. CMOS Setup Utility –...
  • Page 51 External Cache Default: Enabled Most processors that can be installed in this system use external (L2) cache memory to improve performance. The exceptions are older SEPP Celeron CPUs running at 266 or 300 MHz. Enable this item for all but these two processors. CPU L2 Cache ECC Checking Default: Enabled This item enables or disables ECC (Error Correction Code) error...
  • Page 52 Boot Up Floppy Seek Default: Enabled If this item is enabled, it checks the geometry of the floppy disk drives at start-up time. You don’t need to enable this item unless you have an old diskette drive with 360K capacity. Boot Up NumLock Status Default: On This item defines if the keyboard Num Lock key is active when your...
  • Page 53 HDD S.M.A.R.T. capability: Default: Disabled The S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) system is a diagnostics technology that monitors and predicts device performance. S.M.A.R.T. software resides on both the disk drive and the host computer. The disk drive software monitors the internal per- formance of the motors, media, heads, and electronics of the drive.
  • Page 54: Advanced Chipset Features Option

    Advanced Chipset Features Option This option displays a table of items that defines critical timing parameters of the mainboard components including the memory, and the system logic. Generally, you should leave the items on this page at their default values unless you are very familiar with the technical specifications of your system hardware.
  • Page 55 SDRAM RAS Precharge Time Default: 3 These four items set the timing and wait states for SDRAM memory. We recommend that you leave these items at the default value. System/Video BIOS Cacheable Default: Enabled These items allow the video and/or system to be cached in memory for faster execution.
  • Page 56: Integrated Peripherals Option

    Integrated Peripherals Option This option displays a list of items that defines the operation of some peripheral components on the system’s input/output ports. CMOS Setup Utility – Copyright (C) 1984 – 2000 Award Software Integrated Peripherals On-Chip Primary PCI IDE [Enabled] Item Help On-Chip Secondary...
  • Page 57 If you install a device that supports UltraDMA, change the appropriate item on this list to Auto. You may have to install the UltraDMA driver supplied with this mainboard in order to use an UltraDMA device. USB Controller Default: Enabled Use this item to enable the USB ports that are integrated on this main- board.
  • Page 58 Onboard FDC Controller Default: Enabled This option enables the onboard floppy disk drive controller. Onboard Serial Port 1 Default: 3F8/IRQ4 This option is used to assign the I/O address for onboard serial port 1. Onboard Serial Port 2 Default: 2F8/IRQ3 This option is used to assign the I/O address for onboard serial port 2.
  • Page 59: Power Management Setup Option

    SPP allows data output only. Extended Capabilities Port (ECP) and En- hanced Parallel Port (EPP) are bi-directional modes, allowing both data input and output. ECP and EPP modes are only supported with EPP and ECP aware peripherals. ECP Mode Use DMA Default: 3 When the onboard parallel port is set to ECP mode, the parallel port has the option to use DMA 3 or DMA 1.
  • Page 60 Wake Up Calls If the system is in suspend mode, or has been powered down by software, it can be resumed by a wake up call that is generated by incoming traffic to a modem, a LAN card, a PCI card, or a fixed alarm on the system realtime clock.
  • Page 61 Power Management Default: User Define This item acts like a master switch for the power-saving modes and hard disk timeouts. If this item is set to Max Saving, power-saving modes occur after a short timeout. If this item is set to Min Saving, power-saving modes occur after a longer timeout.
  • Page 62 Soft-Off by PWR-BTTN Default: Instant-Off Under ACPI (Advanced Configuration and Power management Inter- face) you can create a software power down. In a software power down, the system can be resumed by Wake Up Alarms. This item lets you in- stall a software power down that is controlled by the normal power button on your system.
  • Page 63: Reload Global Timer Events

    Time (hh:mm:ss) Alarm Default: 0 0 0 When Resume by Alarm is enabled, you can set the time you wish the computer to turn on. **Reload Global Timer Events** Global Timer (power management) events are I/O events whose occurrence can prevent the system from entering a power sav- ing mode or can awaken the system from such a mode.
  • Page 64: Pnp/Pci Configuration Option

    PnP/PCI Configuration Option This option displays a table of items that configures how PnP (Plug and Play) and PCI expansion cards operate in your system. CMOS Setup Utility – Copyright (C) 1984 – 2000 Award Software PnP/PCI Configurations Reset Configuration Data [Disabled] Item Help Resources Controlled by...
  • Page 65: Pc Health Status Option

    This mainboard includes a built-in VGA system that does not require palette snooping so you must leave this item disabled. PC Health Status Option On mainboards that support hardware monitoring, this item lets you monitor the parameters for critical voltages, critical tem- peratures, and fan speeds.
  • Page 66: Frequency Control Option

    Frequency Control Option This item enables you to set the clock speed and frontside bus frequency for your system. The clock speed and frontside bus are determined by the kind of processor you have installed in your system. CMOS Setup Utility – Copyright (C) 1984 – 2000 Award Software Frequency Control Auto Detect DIMM/PCI Clk [Enabled]...
  • Page 67: Load Fail-Safe Defaults Option

    CPU Host/PCI Clock Default: 66/33MHz CPU Clock Ratio Default: 3.5/11.5 These items appear if you have set the CPU Internal Core Speed to Manual. Use the CPU Host/PCI Clock to set the frontside bus frequency for the installed processor (usually 133 MHz, 100 MHz or 66 MHz). Then use CPU Clock Ratio to set a multiple.
  • Page 68: Set Supervisor And User Password Options

    Set Supervisor and User Password Options These items can be used to install a password. A Supervisor password takes precedence over a User password, and the Su- pervisor can limit the activities of a User. To install a password, follow these steps: 1.
  • Page 69: Save & Exit Setup Option

    Save & Exit Setup Option Highlight this item and press <Enter> to save the changes that you have made in the Setup Utility and exit the Setup Utility. When the Save and Exit dialog box appears, press <Y> to save and exit, or press <N>...
  • Page 70 — Notes —...
  • Page 71: Chapter 4: Software

    INTEL and VIA folders. In addition, software that is specifically in- tended for one kind of mainboard is stored in a folder with the name of that board. The software for this mainboard is stored in the MS7057C folder. Note: Never try to install software from a folder that is not specified for use with your mainboard.
  • Page 72: Folders For This Mainboard

    MS7057C Folder You can use the software in the following sub-folders: AUDIO and IDE: Most of the sub-folders in this folder are empty, with a short README file giving directions to alternate folders for the appropri- ate software. Running the Support CD-ROM 1.
  • Page 73: Auto-Installing Under Windows 98

    PC-cillin Software The PC-cillin software program provides anti-virus protection for your system. This program is available for: ! WinNT – \UTILITY\PC-CILLIN\WINNT\SETUP.EXE ! Win9x – \UTILITY\PC-CILLIN\WIN98\SETUP.EXE Anti-virus software is provided for WINNT/2000 and WIN95/98. GAMUT The Gamut audio rack software for the built-in sound system is provided for different languages.
  • Page 74: Mainboard (Ms7057C) Installation Notes

    Refer to your operating system handbook for instructions on in- stalling Linux drivers. Mainboard (MS7057C) Installation Notes Most of the sub-folders in this folder are empty, with a short READ- ME file giving directions to alternate folders for the appropriate...
  • Page 75: Appendix: Jumper Setting Reference

    Jumper Setting Quick Reference JP1: Clear BIOS jumper This jumper lets you erase the BIOS Setup Utility settings that are stored in CMOS memory. You might need to erase this data if incorrect settings are preventing your system from operating. You must first set JP2 to open before you can flash the CMOS.
  • Page 76 JP4: CPU frequency select jumper This jumper enables you to force the CPU to clock at a higher frequency than it is rated. Short pins 2 and 3 to force the CPU to run at a 100 MHz FSB instead of a 66 MHz FSB. We recom- mend that you leave the jumper on the normal operation setting.
  • Page 77 Jumper 8 – 12 pin settings Pin Settings Volt. VID0 VID1 VID2 VID3 VID4 Auto* 1.30V Open Open Open Open 1.35V Open Open Open 1.40V Open Open Open 1.45V Open Open 1.50V Open Open Open 1.55V Open Open 1.60V Open Open 1.65V Open...
  • Page 78 FP1: Panel connectors for switches and indicators Use the panel connector to implement the switches and indica- tors on your system case. Function Pins PANEL1 Power switch 22, 23 Hard disk LED Indicator +20, -21 Power Switch 22-23 Empty pin HDD LED 20-21 Speaker +15, -16, 17, 18...

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