Table of Contents | Intel MB820 specs

Table of Contents
Introduction	1
Checklist	1
Product Description	2
Board Dimensions	3
Installations	4
ATX Power Installation	5
Installing the Memory	5
Setting the Jumpers	6
Connectors on MB820	11
Watchdog Timer Configuration	23
BIOS Setup	27
Drivers Installation	49
Intel 875P Chipset Software Intallation Utility	50
Realtek AC97 Codec Audio Driver Installation	53
Intel PRO LAN Drivers Installation	54
VGA Drivers Installation	55

MB820 User’s Manual

iii

Image 3

Intel MB820 user manual Table of Contents

Contents

Version USER’S Manual Acknowledgments Table of Contents This page is intentionally left blank Introduction Checklist Product Description Board Dimensions Installations Installing the Memory ATX Power Installation Setting the Jumpers Jumper Locations on MB820 JP2 COM1 RS232 +5V/+12V Power Setting JP3 COM2 RS232 +5V/+12V Power SettingJP1 RS232/422/485 COM2 Selection JP4 Clear Cmos Contents JP5 COM3 RS232 +5V/+12V Power SettingJP6 COM4 RS232 +5V/+12V Power Setting JP7 DiskOnChip Address Select JP8 Onboard VGA Enable/Disable Connectors on MB820 Connector Locations on MB820 DIMM3, DIMM4 DDR Channel B Connectors ATXP1 ATX Power Supply ConnectorATXP2 ATX 12V Power Connector DIMM1, DIMM2 DDR Channel a Connectors CN1 PS/2 Keyboard and PS/2 Mouse Connectors CN2 4-port USB ConnectorCN3, J3 Serial Ports CN6 VGA CRT Connector CN4 Parallel Port Connector J4 CD-In Audio Connector CN7 USB and LAN RJ45 ConnectorsCN8 Audio Connector J1 IrDA Connector J5, J6 Serial ATA Sata Connectors J8, J10 COM3 and COM4 Serial Ports ConnectorJ9 Wake On LAN Connector J12 System Function Connector J11 Digital I/O Connector 4 in, 4 out Power LED Pins 11 FAN1 CPU Fan Power Connector FAN2 VGA Fan Power ConnectorFAN3 Chassis Fan Power Connector RM/LC FDD1 Floppy Drive Connector IRQ15 IDE, IDE2 Primary and Secondary IDE Connectors Sample Code Watchdog Timer Configuration Mov Cl, 0F5h Call ReadReg Al, not 08h Call WriteReg Out dx, al Installations Bios Setup Bios Setup Bios Introduction Phoenix AwardBIOS Cmos Setup Utility Date Standard Cmos Setup Time IDE Primary HDDs / IDE Secondary HDDsDrive a / Drive B Halt On Video CPU L1 and L2 Cache Advanced Bios FeaturesHard Disk Boot Priority Quick Power On Self Test Boot Up NumLock Status First/Second/Third Boot DeviceBoot Other Device Boot Up Floppy Seek OS Select for Dram 64MB Apic ModeSecurity Option MPS Version Control for OS Advanced Chipset Features AGP Aperture Size IDE Integrated Peripherals IDE Primary/Secondary Master/Slave PIO IDE HDD Block ModeIDE DMA Transfer Access OnChip Primary/Secondary PCI IDE USB Keyboard Support On-Chip Serial ATAUSB Controller USB 2.0 Controller Uart Mode Select Parallel Port ModeChip Select Pin Power Management Setup Power ManagementAcpi Function Video Off In Suspend Suspend ModeHDD Power Down Video Off Method Wake Up On LAN Power On by RingResume by Alarm Reload Global Timer Events Resources Controlled by PNP/PCI ConfigurationsPNP OS Install Reset Configuration Data PC Health Status CPU Warning TemperatureTemperatures/Fan Speeds/Voltages Shutdown Temperature Frequency/Voltage Control Auto Detect DIMM/PCI ClkSpread Spectrum Save & Exit Setup Load Fail-Safe DefaultsLoad Setup Defaults Set Supervisor/User Password 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