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iv	MB820 User’s Manual

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Intel MB820 user manual This page is intentionally left blank

Contents

USER’S Manual Version Acknowledgments Table of Contents This page is intentionally left blank Checklist Introduction Product Description Board Dimensions Installations ATX Power Installation Installing the Memory Setting the Jumpers Jumper Locations on MB820 JP3 COM2 RS232 +5V/+12V Power Setting JP2 COM1 RS232 +5V/+12V Power SettingJP1 RS232/422/485 COM2 Selection JP5 COM3 RS232 +5V/+12V Power Setting JP4 Clear Cmos ContentsJP6 COM4 RS232 +5V/+12V Power Setting JP8 Onboard VGA Enable/Disable JP7 DiskOnChip Address Select Connectors on MB820 Connector Locations on MB820 ATXP1 ATX Power Supply Connector ATXP2 ATX 12V Power ConnectorDIMM1, DIMM2 DDR Channel a Connectors DIMM3, DIMM4 DDR Channel B Connectors CN2 4-port USB Connector CN1 PS/2 Keyboard and PS/2 Mouse ConnectorsCN3, J3 Serial Ports CN4 Parallel Port Connector CN6 VGA CRT Connector CN7 USB and LAN RJ45 Connectors CN8 Audio ConnectorJ1 IrDA Connector J4 CD-In Audio Connector J8, J10 COM3 and COM4 Serial Ports Connector J5, J6 Serial ATA Sata ConnectorsJ9 Wake On LAN Connector J11 Digital I/O Connector 4 in, 4 out J12 System Function Connector Power LED Pins 11 FAN2 VGA Fan Power Connector FAN1 CPU Fan Power ConnectorFAN3 Chassis Fan Power Connector FDD1 Floppy Drive Connector RM/LC IDE, IDE2 Primary and Secondary IDE Connectors IRQ15 Watchdog Timer Configuration Sample Code Mov Cl, 0F5h Call ReadReg Al, not 08h Call WriteReg Out dx, al Installations Bios Setup Bios Introduction Bios Setup Phoenix AwardBIOS Cmos Setup Utility Standard Cmos Setup Date IDE Primary HDDs / IDE Secondary HDDs TimeDrive a / Drive B Video Halt On Advanced Bios Features Hard Disk Boot PriorityQuick Power On Self Test CPU L1 and L2 Cache First/Second/Third Boot Device Boot Other DeviceBoot Up Floppy Seek Boot Up NumLock Status Apic Mode Security OptionMPS Version Control for OS OS Select for Dram 64MB Advanced Chipset Features AGP Aperture Size Integrated Peripherals IDE IDE HDD Block Mode IDE DMA Transfer AccessOnChip Primary/Secondary PCI IDE IDE Primary/Secondary Master/Slave PIO On-Chip Serial ATA USB ControllerUSB 2.0 Controller USB Keyboard Support Parallel Port Mode Uart Mode SelectChip Select Pin Power Management Power Management SetupAcpi Function Suspend Mode HDD Power DownVideo Off Method Video Off In Suspend Power On by Ring Resume by AlarmReload Global Timer Events Wake Up On LAN PNP/PCI Configurations PNP OS InstallReset Configuration Data Resources Controlled by CPU Warning Temperature Temperatures/Fan Speeds/VoltagesShutdown Temperature PC Health Status Auto Detect DIMM/PCI Clk Frequency/Voltage ControlSpread Spectrum Load Fail-Safe Defaults Load Setup DefaultsSet Supervisor/User Password Save & Exit Setup Drivers Installation Intel 875P Chipset Software Intallation Utility Drivers Installation Drivers Installation Realtek AC97 Codec Audio Driver Installation Intel PRO LAN Drivers Installation VGA Drivers Installation Drivers Installation