Intel MB820 user manual Product Description

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INSTALLATIONS

Product Description

The MB820 Pentium® 4 motherboard incorporates the Intel 875P chipset that can utilize a single PGA478 processor of up to 3.2GHz or higher and supports FSB frequency of 400/533/800Mhz (100Mhz, 133Mhz, and 200Mhz HCLK respectively).

The 875P chipset is designed for use with the Pentium® 4 processor with 512-KB L2 cache on 0.13 micron process. The integrated MCH component provides the CPU interface, DDR interface, AGP interface, 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 is provided by four PCI slots, two ISA slots and one AGP8X interface. Other advanced features include six USB 2.0 ports, IrDA interface, PCI to ISA bridge, digital I/O, four serial ports, watchdog timer and audio function. Dimensions of the board are 12” by 9.5” in an ATX form factor.

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MB820 User’s Manual

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Contents USER’S Manual VersionAcknowledgments Table of Contents This page is intentionally left blank Checklist IntroductionProduct Description Board Dimensions Installations ATX Power Installation Installing the MemorySetting 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 JP8 Onboard VGA Enable/Disable JP7 DiskOnChip Address SelectConnectors on MB820 Connector Locations on MB820 DIMM1, DIMM2 DDR Channel a Connectors ATXP1 ATX Power Supply ConnectorATXP2 ATX 12V Power Connector DIMM3, DIMM4 DDR Channel B ConnectorsCN1 PS/2 Keyboard and PS/2 Mouse Connectors CN2 4-port USB ConnectorCN3, J3 Serial Ports CN4 Parallel Port Connector CN6 VGA CRT ConnectorJ1 IrDA Connector CN7 USB and LAN RJ45 ConnectorsCN8 Audio Connector J4 CD-In Audio ConnectorJ5, J6 Serial ATA Sata Connectors J8, J10 COM3 and COM4 Serial Ports ConnectorJ9 Wake On LAN Connector J11 Digital I/O Connector 4 in, 4 out J12 System Function ConnectorPower LED Pins 11 FAN1 CPU Fan Power Connector FAN2 VGA Fan Power ConnectorFAN3 Chassis Fan Power Connector FDD1 Floppy Drive Connector RM/LCIDE, IDE2 Primary and Secondary IDE Connectors IRQ15Watchdog Timer Configuration Sample CodeMov Cl, 0F5h Call ReadReg Al, not 08h Call WriteReg Out dx, al Installations Bios Setup Bios Introduction Bios SetupPhoenix AwardBIOS Cmos Setup Utility Standard Cmos Setup DateTime IDE Primary HDDs / IDE Secondary HDDsDrive a / Drive B Video Halt OnQuick Power On Self Test Advanced Bios FeaturesHard Disk Boot Priority CPU L1 and L2 CacheBoot Up Floppy Seek First/Second/Third Boot DeviceBoot Other Device Boot Up NumLock StatusMPS Version Control for OS Apic ModeSecurity Option OS Select for Dram 64MBAdvanced Chipset Features AGP Aperture Size Integrated Peripherals IDEOnChip Primary/Secondary PCI IDE IDE HDD Block ModeIDE DMA Transfer Access IDE Primary/Secondary Master/Slave PIOUSB 2.0 Controller On-Chip Serial ATAUSB Controller USB Keyboard SupportUart Mode Select Parallel Port ModeChip Select Pin Power Management Setup Power ManagementAcpi Function Video Off Method Suspend ModeHDD Power Down Video Off In SuspendReload Global Timer Events Power On by RingResume by Alarm Wake Up On LANReset Configuration Data PNP/PCI ConfigurationsPNP OS Install Resources Controlled byShutdown Temperature CPU Warning TemperatureTemperatures/Fan Speeds/Voltages PC Health StatusFrequency/Voltage Control Auto Detect DIMM/PCI ClkSpread Spectrum Set Supervisor/User Password Load Fail-Safe DefaultsLoad Setup Defaults Save & Exit SetupDrivers 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