Intel MB820 J5, J6 Serial ATA Sata Connectors, J8, J10 COM3 and COM4 Serial Ports Connector

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INSTALLATIONS

J5, J6: Serial ATA (SATA) Connectors

The SATA connectors support serial ATA 150. Each connector can only use one serial ATA hard disk. J6 is port 1 and J5 is port 2.

J8, J10: COM3 and COM4 Serial Ports Connector

J8 and J10 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 has 1A.

	Pin #	Signal Name
	1	+5VSB

2Ground

3LAN Wakeup

MB820 User’s Manual

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Contents Version USER’S ManualAcknowledgments Table of Contents This page is intentionally left blank Introduction ChecklistProduct Description Board Dimensions Installations Installing the Memory ATX Power InstallationSetting 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/DisableConnectors on MB820 Connector Locations on MB820 ATXP2 ATX 12V Power Connector ATXP1 ATX Power Supply ConnectorDIMM1, DIMM2 DDR Channel a Connectors DIMM3, DIMM4 DDR Channel B ConnectorsCN1 PS/2 Keyboard and PS/2 Mouse Connectors CN2 4-port USB ConnectorCN3, J3 Serial Ports CN6 VGA CRT Connector CN4 Parallel Port ConnectorCN8 Audio Connector CN7 USB and LAN RJ45 ConnectorsJ1 IrDA Connector J4 CD-In Audio ConnectorJ5, 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 outPower LED Pins 11 FAN1 CPU Fan Power Connector FAN2 VGA Fan Power ConnectorFAN3 Chassis Fan Power Connector RM/LC FDD1 Floppy Drive ConnectorIRQ15 IDE, IDE2 Primary and Secondary IDE ConnectorsSample Code Watchdog Timer ConfigurationMov Cl, 0F5h Call ReadReg Al, not 08h Call WriteReg Out dx, al Installations Bios Setup Bios Setup Bios IntroductionPhoenix AwardBIOS Cmos Setup Utility Date Standard Cmos SetupTime IDE Primary HDDs / IDE Secondary HDDsDrive a / Drive B Halt On VideoHard Disk Boot Priority Advanced Bios FeaturesQuick Power On Self Test CPU L1 and L2 CacheBoot Other Device First/Second/Third Boot DeviceBoot Up Floppy Seek Boot Up NumLock StatusSecurity Option Apic ModeMPS Version Control for OS OS Select for Dram 64MBAdvanced Chipset Features AGP Aperture Size IDE Integrated PeripheralsIDE DMA Transfer Access IDE HDD Block ModeOnChip Primary/Secondary PCI IDE IDE Primary/Secondary Master/Slave PIOUSB Controller On-Chip Serial ATAUSB 2.0 Controller USB Keyboard SupportUart Mode Select Parallel Port ModeChip Select Pin Power Management Setup Power ManagementAcpi Function HDD Power Down Suspend ModeVideo Off Method Video Off In SuspendResume by Alarm Power On by RingReload Global Timer Events Wake Up On LANPNP OS Install PNP/PCI ConfigurationsReset Configuration Data Resources Controlled byTemperatures/Fan Speeds/Voltages CPU Warning TemperatureShutdown Temperature PC Health StatusFrequency/Voltage Control Auto Detect DIMM/PCI ClkSpread Spectrum Load Setup Defaults Load Fail-Safe DefaultsSet Supervisor/User Password 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