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INTRODUCTION 

                              MB820 User’s Manual 

Introduction 

 

Checklist 

 
Your MB820 Pentium

®

 4 motherboard package should include the items 

listed below: 

• 

The MB820 motherboard 

• 

This User’s Manual  

• 

1 Backplate 

• 

2 IDE Cable 

• 

1 Floppy Cable 

• 

2 SATA Cable 

• 

1 Dual-Serial-Port Cable 

• 

1 CD containing the following:  

• 

Chipset Drivers 

• 

Flash Memory Utility 

 

Summary of Contents for MB820

Page 1: ...MB820 Socket 478 Pentium 4 Intel 875P Chipset Industrial Motherboard USER S MANUAL Version 1 1 ...

Page 2: ...f International Business Machines Corporation Intel and Pentium 4 are registered trademarks of Intel Corporation Microsoft Windows is a registered trademark of Microsoft Corporation Winbond is a registered trademark of Winbond Electronics Corporation All other product names or trademarks are properties of their respective owners ...

Page 3: ...stalling the CPU 6 ATX Power Installation 7 Installing the Memory 7 Setting the Jumpers 8 Connectors on MB820 13 Watchdog Timer Configuration 25 BIOS Setup 29 Drivers Installation 51 Intel 875P Chipset Software Intallation Utility 52 Realtek AC97 Codec Audio Driver Installation 55 Intel PRO LAN Drivers Installation 56 VGA Drivers Installation 57 ...

Page 4: ...iv MB820 User s Manual This page is intentionally left blank ...

Page 5: ...ur MB820 Pentium 4 motherboard package should include the items listed below The MB820 motherboard This User s Manual 1 Backplate 2 IDE Cable 1 Floppy Cable 2 SATA Cable 1 Dual Serial Port Cable 1 CD containing the following Chipset Drivers Flash Memory Utility ...

Page 6: ... Hub Interface and AGP 8X graphics interface Four DDR memory sockets supports DDR 400 333 266 SDRAM DIMM modules of up to 4GB in capacity ECC is also supported The board also comes optional with either integrated 10 100MB LAN support or an Intel 82547GI Gigabit LAN controller Two Serial ATA connectors offer 1 5 Gigabits sec data throughput speed faster than the most advanced parallel ATA Expansion...

Page 7: ...pport dual channel Max capacity 4GB supports ECC function LPC I O Winbond W83627HF IrDAx1 LPTx1 COM1 RS 232 COM2 RS 232 RS422 RS485 FDC 2 88MB Hardware monitoring 3 thermal inputs 8 voltage monitor inputs VID0 4 1 chassis open detection 3 fan headers RTC CMOS Built in ICH5 Battery Lithium battery Keyboard Controller Built in Winbond 83627HF IDE ICH5 built in IDE1 IDE2 Ultra DMA 33 66 100 Serial AT...

Page 8: ...INSTALLATIONS 4 MB820 User s Manual Board Dimensions ...

Page 9: ... information on how to use the jumpers and connectors on the MB820 in order to set up a workable system The topics covered are Installing the CPU 6 ATX Power Installation 7 Installing the Memory 7 Setting the Jumpers 8 Connectors on MB820 13 Watchdog Timer Configuration 25 ...

Page 10: ...ssor into the socket by making sure the notch on the corner of the CPU corresponds with the notch on the inside of the socket Once the processor has slide into the socket return the lever to the lock position Refer to the figures below After you have installed the processor into the socket check if the jumpers for the CPU type and speed are correct NOTE Ensure that the CPU heat sink and the CPU to...

Page 11: ...ports DDR266 320 400 when installed with CPUs that have clock speeds of 800MHz The board provides dual channel functionality for its DIMM slots DIMM1 2is for one channel and DIMM3 4 is for another channel Enabling dual channels can increase data access rates by putting two similar size DDR modules into two same color DIMM slots Basically the system memory interface has the following features Suppo...

Page 12: ...t configuration for your needs The following lists the connectors on MB820 and their respective functions Jumper Locations on MB820 9 JP1 RS232 422 485 COM2 Selection 10 JP2 COM1 RS232 5V 12V Power Setting 10 JP3 COM2 RS232 5V 12V Power Setting 10 JP4 Clear CMOS Contents 11 JP5 COM3 RS232 5V 12V Power Setting 11 JP6 COM4 RS232 5V 12V Power Setting 11 JP7 DiskOnChip Address Select 12 JP8 Onboard VG...

Page 13: ...Page JP1 RS232 422 485 COM2 Selection 10 JP2 COM1 RS232 5V 12V Power Setting 10 JP3 COM2 RS232 5V 12V Power Setting 10 JP4 Clear CMOS Contents 11 JP5 COM3 RS232 5V 12V Power Setting 11 JP6 COM4 RS232 5V 12V Power Setting 11 JP7 DiskOnChip Address Select 12 JP8 Onboard VGA Enable Disable 12 ...

Page 14: ... COM2 Function RS 232 RS 422 RS 485 Jumper Setting pin closed Short 1 2 9 11 10 12 15 17 16 18 Short 3 4 7 9 8 10 13 15 14 16 Short 5 6 7 9 8 10 13 15 14 16 JP2 COM1 RS232 5V 12V Power Setting JP2 Setting Function Pin 1 2 Short Closed 12V Pin 3 4 Short Closed Normal Pin 5 6 Short Closed 5V JP3 COM2 RS232 5V 12V Power Setting JP3 Setting Function Pin 1 2 Short Closed 12V Pin 3 4 Short Closed Normal...

Page 15: ...otherboard before clearing CMOS JP4 Setting Function Pin 1 2 Short Closed Normal Pin 2 3 Short Closed Clear CMOS JP5 COM3 RS232 5V 12V Power Setting JP5 Setting Function Pin 1 2 Short Closed 12V Pin 3 4 Short Closed Normal Pin 5 6 Short Closed 5V JP6 COM4 RS232 5V 12V Power Setting JP6 Setting Function Pin 1 2 Short Closed 12V Pin 3 4 Short Closed Normal Pin 5 6 Short Closed 5V ...

Page 16: ...7 DiskOnChip Address Select JP7 Address D0000 D7FFF D8000 DFFFF default JP8 Onboard VGA Enable Disable Use JP8 to enable or disable the onboard VGA controller JP8 Setting Onboard VGA Pin 1 2 Short Closed Enabled Pin 2 3 Short Closed Disabled ...

Page 17: ...CI4 PCI Slots 15 SL1 SL2 ISA Slots 15 CN1 PS 2 Keyboard and PS 2 Mouse Connectors 16 CN2 4 port USB Connector 16 CN3 J3 Serial Ports 16 CN4 Parallel Port Connector 17 CN6 VGA CRT Connector 17 CN7 USB and LAN RJ45 Connectors 18 CN8 Audio Connector 18 J1 IrDA Connector 18 J4 CD In Audio Connector 18 J5 J6 Serial ATA SATA Connectors 19 J8 J10 COM3 and COM4 Serial Ports Connector 19 J9 Wake On LAN Con...

Page 18: ...onnector 17 CN7 USB and LAN RJ45 Connectors 18 CN8 Audio Connector 18 J1 IrDA Connector 18 J4 CD In Audio Connector 18 J5 J6 Serial ATA SATA Connectors 19 J8 J10 COM3 and COM4 Serial Ports Connector 19 J9 Wake On LAN Connector 19 J11 Digital I O Connector 4 in 4 out 20 J12 System Function Connector 20 J13 USB Connector 20 FAN1 CPU Fan Power Connector 22 FAN2 VGA Fan Power Connector 22 FAN3 Chassis...

Page 19: ...wer good 5V 19 9 5VSB 5V 20 10 12V 11 1 20 10 ATXP2 ATX 12V Power Connector Pin Signal Name 1 Ground 2 Ground 3 12V 4 12V DIMM1 DIMM2 DDR Channel A Connectors DIMM1 and DIMM2 are the first DDR channel connectors that must be use together at one time in order for the system to function properly DIMM3 DIMM4 DDR Channel B Connectors DIMM3 and DIMM4 are the second DDR channel connectors that must be u...

Page 20: ...USB connector consisting of four ports stacked vertically Pin Signal Name 1 Ground 2 USB 3 USB CN2 4 Vcc CN3 J3 Serial Ports CN3 COM1 is a DB 9 connector while J3 is a COM2 pin header connector COM2 is optionally available as a DB 9 connector CN5 COM1 COM2 Signal Name Pin Pin Signal Name DCD Data carrier detect 1 6 DSR Data set ready RXD Receive data 2 7 RTS Request to send TXD Transmit data 3 8 C...

Page 21: ...e PD2 parallel data 2 4 17 Select PD3 parallel data 3 5 18 Ground PD4 parallel data 4 6 19 Ground PD5 parallel data 5 7 20 Ground PD6 parallel data 6 8 21 Ground PD7 parallel data 7 9 22 Ground ACK acknowledge 10 23 Ground Busy 11 24 Ground Paper empty 12 25 Ground Select 13 N A N A CN6 VGA CRT Connector CN6 is a DB 15 VGA connector located beside the COM1 port The following table shows the pin ou...

Page 22: ...n assignments Pin Signal Name 1 Vcc 2 USB 3 USB USB0 USB1 4 Ground CN8 Audio Connector CN8 is a 3 jack audio connector beside the USB RJ45 combo connector J1 IrDA Connector J1 is used for an optional IrDA connector for wireless communication Pin Signal Name 1 5V 2 No connect 3 Ir RX 4 Ground 5 Ir TX J4 CD In Audio Connector Pin Signal Name 1 CD Audio R 2 Ground 3 Ground 4 CD Audio L ...

Page 23: ...are both 10 pin headers as the COM3 and COM4 serial port pin headers supporting RS232 Pin Signal Name 1 DCD 2 RX 3 TX 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 RI 10 NC J9 Wake On LAN Connector J9 is a 3 pin header for the Wake On LAN function on the motherboard The following table shows the pin out assignments of this connector Wake On LAN will function properly only with an ATX power supply with 5VSB that...

Page 24: ...unction Connector J12 provides connectors for system indicators that provide light indication of the computer activities and switches to change the computer status J12 is a 20 pin header that provides interfaces for the following functions Hard Disk Drive LED Reset Switch Not Defined ATX Power On Switch SMI Hardware Switch Power LED Speaker Speaker Pins 1 4 This connector provides an interface to ...

Page 25: ...power saving mode immediately Pin Signal Name 6 SMI 16 Ground ATX Power ON Switch Pins 7 and 17 This 2 pin connector is an ATX Power Supply On Off Switch on the system that connects to the power switch on the case When pressed the power switch will force the system to power on When pressed again it will force the system to power off Reset Switch Pins 9 and 19 The reset switch allows the user to re...

Page 26: ...Active 20 5V J13 USB Connector The following table shows the pin outs of the USB pin header connector Signal Name Pin Pin Signal Name Vcc 1 5 Ground D 2 6 D D 3 7 D J13 Ground 4 8 Vcc FAN1 CPU Fan Power Connector Pin Signal Name 1 Ground 2 12V 3 Rotation detection FAN2 VGA Fan Power Connector Pin Signal Name 1 Ground 2 12V 3 Rotation detection FAN3 Chassis Fan Power Connector Pin Signal Name 1 Gro...

Page 27: ...nect Ground 7 8 Index Ground 9 10 Motor enable 0 Ground 11 12 Drive select 1 Ground 13 14 Drive select 0 Ground 15 16 Motor enable 1 Ground 17 18 Direction Ground 19 20 Step Ground 21 22 Write data Ground 23 24 Write gate Ground 25 26 Track 00 Ground 27 28 Write protect Ground 29 30 Read data Ground 31 32 Side 1 select FDD1 Ground 33 34 Diskette change ...

Page 28: ...round IRQ14 31 32 No connect Address 1 33 34 No connect Address 0 35 36 Address 2 Chip select 0 37 38 Chip select 1 IDE1 Activity 39 40 Ground Signal Name Pin Pin Signal Name Reset IDE 1 2 Ground Host data 7 3 4 Host data 8 Host data 6 5 6 Host data 9 Host data 5 7 8 Host data 10 Host data 4 9 10 Host data 11 Host data 3 11 12 Host data 12 Host data 2 13 14 Host data 13 Host data 1 15 16 Host data...

Page 29: ...normal circumstance the user will restart the WDT at regular intervals before the timer counts to zero SAMPLE CODE This code and information is provided as is without warranty of any kind either expressed or implied including but not limited to the implied warranties of merchantability and or fitness for a particular purpose Name Enable_And_Set_Watchdog IN AL 1sec 255sec OUT None Enable_And_Set_Wa...

Page 30: ...01h movcl 30h call Write_Reg watchdog enabled call Lock_Chip ret Enable_And_Set_Watchdog Endp Name Disable_Watchdog IN None OUT None Disable_Watchdog Proc Near call Unlock_Chip movcl 07h moval 08h call Write_Reg switch to LD8 xor al al movcl 0F6h call Write_Reg clear watchdog timer xor al al movcl 30h call Write_Reg watchdog disabled call Lock_Chip ret Disable_Watchdog Endp ...

Page 31: ...7h out dx al out dx al ret Unlock_Chip Endp Name Lock_Chip IN None OUT None Unlock_Chip Proc Near movdx 2Eh moval 0AAh out dx al ret Unlock_Chip Endp Name Write_Reg IN CL register index AL Value to write OUT None Write_Reg Proc Near push ax movdx 2Eh moval cl out dx al pop ax inc dx out dx al ret Write_Reg Endp ...

Page 32: ...INSTALLATIONS 28 MB820 User s Manual Name Read_Reg IN CL register index OUT AL Value to read Read_Reg Proc Near moval cl movdx 2Eh out dx al inc dx in al dx ret Read_Reg Endp ...

Page 33: ...pter are as follows BIOS Introduction 30 BIOS Setup 30 Standard CMOS Setup 32 Advanced BIOS Features 35 Advanced Chipset Features 38 Integrated Peripherals 40 Power Management Setup 44 PNP PCI Configurations 47 PC Health Status 48 Frequency Voltage Control 49 Load Fail Safe Defaults 50 Load Setup Defaults 50 Set Supervisor User Password 50 Save Exit Setup 50 Exit Without Saving 50 ...

Page 34: ...d BIOS is immediately activated Pressing the Del key immediately allows you to enter the Setup utility If you are a little bit late pressing the Del key POST Power On Self Test will continue with its test routines thus preventing you from invoking the Setup If you still wish to enter Setup restart the system by pressing the Reset button or simultaneously pressing the Ctrl Alt and Delete keys You c...

Page 35: ...displays the control keys for this menu At the bottom of the Main Menu just below the control keys section there is another section which displays information on the currently highlighted item in the list Note If the system cannot boot after making and saving system changes with Setup the Award BIOS supports an override to the CMOS settings that resets your system to its default Warning It is stro...

Page 36: ...ter None Change the day month IDE Channel 0 Slave None Year and century IDE Channel 1 Master None IDE Channel 1 Slave None IDE Channel 2 Master None IDE Channel 3 Master None Drive A 1 44M 3 5 in Drive B None Video EGA VGA Halt On All Errors Base Memory 640K Extended Memory 129024K Total Memory 130048K At the bottom of the menu are the control keys for use on this menu If you need any help in each...

Page 37: ...Auto Manual and None Select Manual to define the drive information manually You will be asked to enter the following items CYLS Number of cylinders HEAD Number of read write heads PRECOMP Write precompensation LANDZ Landing zone SECTOR Number of sectors The Access Mode selections are as follows Auto Normal HD 528MB Large for MS DOS only LBA HD 528MB and supports Logical Block Addressing Remarks Th...

Page 38: ...or not the system will halt if an error is detected during power up No errors The system boot will not be halted for any error that may be detected All errors Whenever the BIOS detects a non fatal error the system will stop and you will be prompted All But Keyboard The system boot will not be halted for a keyboard error it will stop for all other errors All But Diskette The system boot will not be...

Page 39: ...abled Hard Disk Boot Priority This item allows you to set the priority for hard disk boot When you press enter the selections shows the current hard disks used in your system as well as the Bootable Add in Card that is relevant to other boot sources media such as SCSI cards and LAN cards CPU L1 and L2 Cache Cache memory is additional memory that is much faster than conventional DRAM system memory ...

Page 40: ...or a floppy drive while booting up If it cannot detect one either due to improper configuration or its absence it will flash an error message Boot Up NumLock Status This allows you to activate the NumLock function after you power up the system Gate A20 Option This field allows you to select how Gate A20 is worked Gate A20 is a device used to address memory above 1 MB Typematic Rate Setting When di...

Page 41: ...ve support for multiple PCI bus configurations and improve future expandability The default setting is 1 4 OS Select for DRAM 64MB This option allows the system to access greater than 64MB of DRAM memory when used with OS 2 that depends on certain BIOS calls to access memory The default setting is Non OS 2 Report No FDD For WIN 95 If you are using Windows 95 98 without a floppy disk drive select E...

Page 42: ...ted The default is By SPD CAS Latency Time You can configure CAS latency time in HCLKs as 2 or 2 5 or 3 The system board designer should set the values in this field depending on the DRAM installed Do not change the values in this field unless you change specifications of the installed DRAM or the installed CPU Active to Precharge Delay The default setting for the Active to Precharge Delay is 7 DR...

Page 43: ...Prior to Thermal This field activates the CPU thermal function after the systems boots for the set number of minutes The options are 16Min and 64Min AGP Aperture Size The field sets aperture size of the graphics The aperture is a portion of the PCI memory address range dedicated for graphics memory address space Host cycles that hit the aperture range are forwarded to the AGP without any translati...

Page 44: ...Enabled IDE Primary Master PIO Auto IDE Primary Slave PIO Auto IDE Primary Master UDMA Auto IDE Primary Slave UDMA Auto On Chip Secondary PCI IDE Enabled IDE Secondary Master PIO Auto IDE Secondary Slave PIO Auto IDE Secondary Master UDMA Auto IDE Secondary Slave UDMA Auto On Chip Serial ATA Setting SATA Mode IDE On Chip Serial ATA Auto Serial ATA Port0 Mode SATA0 master If your IDE hard drive sup...

Page 45: ... drive IDE DMA Transfer Access Allows IDE transfer to be done in DMA mode OnChip Primary Secondary PCI IDE The integrated peripheral controller contains an IDE interface with support for two IDE channels Select Enabled to activate each channel separately IDE Primary Secondary Master Slave PIO These fields allow your system hard disk controller to work faster Rather than have the BIOS issue a serie...

Page 46: ... options for this field are Enabled and Disabled By default this field is set to Disabled AC97 Audio The default setting of the AC97 Audio is Auto LAN Controller The default setting of the LAN controller is Enabled Onboard FDC Controller Select Enabled if your system has a floppy disk controller FDC installed on the motherboard and you wish to use it If you install an add in FDC or the system has ...

Page 47: ...he default value is Normal Other options include IrDA and ASKIR Parallel Port Mode This field allows you to determine parallel port mode function SPP Standard Printer Port EPP Enhanced Parallel Port ECP Extended Capabilities Port Chip Select Pin This item is used in conjunction with the digital I O function ...

Page 48: ... by Ring Disabled Wake Up on Lan Disabled Resume by Alarm Disabled Date of Month Alarm 0 Time hh mm ss Alarm 0 0 0 Reload Global Timer Events Primary IDE 0 Enabled Primary IDE 1 Enabled Secondary IDE 0 Enabled Secondary IDE 1 Enabled FDD COM LPT Port Enabled PCI PIRQ A D Enabled ACPI Function Enable this function to support ACPI Advance Configuration and Power Interface Power Management This field...

Page 49: ...et time of system inactivity all devices except the CPU will be shut off HDD Power Down When enabled and after the set time of system inactivity the hard disk drive will be powered down while all other devices remain active Soft Off by PWRBTN This field defines the power off mode when using an ATX power supply The Instant Off mode allows powering off immediately upon pressing the power button In t...

Page 50: ...resumption of the system operation When enabled the user is allowed to set the Date and Time Reload Global Timer Events The HDD FDD COM LPT Ports and PCI PIRQ are I O events that can prevent the system from entering a power saving mode or can awaken the system from such a mode When an I O device wants to gain the attention of the operating system it signals this by causing an IRQ to occur When the...

Page 51: ...ration Data ESCD when you exit Setup if you have installed a new add on and the system reconfiguration has caused such a serious conflict that the OS cannot boot PNP OS Install Enable the PNP OS Install option if it is supported by the operating system installed The default value is No Reset Configuration Data This field allows you to determine whether to reset the configuration data or not The de...

Page 52: ...o set the temperature so that when the temperature is reached the system sounds a warning This function can help prevent damage to the system that is caused by overheating Temperatures Fan Speeds Voltages These fields are the parameters of the hardware monitoring function feature of the motherboard The values are read only values as monitored by the system and show the PC health status Shutdown Te...

Page 53: ...MOS Setup Utility Frequency Voltage Control Auto Detect DIMM PCI Clk Disabled ITEM HELP Spread Spectrum Disabled Menu Level Auto Detect DIMM PCI Clk This field enables or disables the auto detection of the PCI clock Spread Spectrum This field sets the value of the spread spectrum The default setting is Disabled This field is for CE testing use only ...

Page 54: ...ssword message prompts on the screen Type the password up to eight characters in length and press Enter The system confirms your password by asking you to type it again After setting a password the screen automatically returns to the main screen To disable a password just press the Enter key when you are prompted to enter the password A message will confirm the password to be disabled Once the pas...

Page 55: ...s missing please contact the vendor where you made the purchase The contents of this section include the following Intel 875P Chipset Software Intallation Utility 52 Realtek AC97 Codec Audio Driver Installation 55 Intel PRO LAN Drivers Installation 56 VGA Drivers Installation 57 IMPORTANT NOTE After installing your Windows operating system Windows 98SE ME 2000 XP you must install first the Intel C...

Page 56: ... software drivers to enable Plug Play INF support for Intel chipset components Follow the instructions below to complete the installation under Windows 98SE ME 2000 XP 1 Insert the CD that comes with the motherboard and the screen below would appear Click Intel Chipsets and then Intel R 875P Chipset Drivers 2 Click Intel R Chipset Software Intallation Utility ...

Page 57: ...DRIVERS INSTALLATION MB820 User s Manual 53 3 When the Welcome screen appears click Next to continue 4 Click Yes to accept the software license agreement and proceed with the installation process ...

Page 58: ...on screen click Next to continue the installation 6 The Setup process is now complete Click Finish to restart the computer and for changes to take effect When the computer has restarted the system will be able to find some devices Restart your computer when prompted ...

Page 59: ...stall the Realtek AC97 Codec Audio Drivers 1 Insert the CD that comes with the motherboard and the screen below would appear Click Intel R Chipsets then Intel R 875P Chipset Family Drivers Click Realtek AC97 Codec Audio Drivers to start installation 2 Click Finish to restart the computer and for changes to take effect ...

Page 60: ...llow the steps below to complete the installation 1 Insert the CD that comes with the motherboard and the screen below would appear Click on LAN Card on the left side to make the LAN drivers selection Click on Intel R PRO LAN Drivers 2 Click Install Software to continue 3 When prompted click Restart to restart the computer for new settings to take effect ...

Page 61: ...on To install the SMI VGA drivers SMI SM712 follow the steps below to proceed with the installation 1 Insert the CD that comes with the MB820 and the screen below would appear Click VGA Card on the left side 2 On the right side of the screen click on SMI712 VGA Driver ...

Page 62: ...58 MB820 User s Manual 3 A Welcome screen would then appear Click Next to start copying of files needed for the driver installation 4 After file copying is done restart the computer when prompted for changes to take effect ...

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