IBASE Technology MB820 Manuale utente
MB820
Socket 478 Pentium®4
Intel®875P Chipset
Industrial Motherboard
USER’S MANUAL
Version 1.0
ii MB820 User’s Manual
Acknowledgments
Award is a registered trademark of Award Software International,
Inc.
PS/2 is a trademark of International Business Machines
Corporation.
IntelandPentium4areregisteredtrademarksofIntelCorporation.
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.
MB820 User’s Manual iii
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
iv MB820 User’s Manual
This page is intentionally left blank.
INTRODUCTION
MB820 User’s Manual 1
Introduction
Checklist
Your MB820 Pentium®4 motherboard package should include the items
listed below:
•The MB820 motherboard
•This User’s Manual
•1 Backplate
•2IDE Cable
•1 Floppy Cable
•2 SATA Cable
•1 Dual-Serial-Port Cable
•1 CD containing the following:
•Chipset Drivers
•Flash Memory Utility
INSTALLATIONS
2MB820 User’s Manual
Product Description
The MB820 Pentium®4motherboard incorporates the Intel 875P chipset
that can utilize asingle 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.
INTRODUCTION
MB820 User’s Manual 3
Board Dimensions
INSTALLATIONS
4MB820 User’s Manual
Installations
This section provides information on how to use the jumpers and
connectors on the MB820 in order to set up a workable system. The
topics covered are:
ATX Power Installation
Installing the Memory
Setting the Jumpers
Connectors on MB820
Watchdog Timer Configuration
INSTALLATIONS
MB820 User’s Manual 5
ATX Power Installation
The system power is provided to the motherboard with the ATXP1 and
ATXP2 ATX power connectors.ATXP2 is a 4-pin 12V power connector.
ATXP1 is to be connected to a standard ATX power connector.
Installing the Memory
The MB820 motherboard supports four DDR memory sockets for a
maximum total memory of 4GB in DDR memory type. You can install
unbuffered & ECC DDR DIMMs. It supports DDR266 when installed
with CPUs that have clock speeds of 400MHz. It supports DDR266/333
when installedwith CPUs that have clock speeds of 533MHz. It supports
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:
Supports two 64-bit wide DDR data channels
Available bandwidth up to 3.2GB/s (DDR400) for single-channel
mode and 6.4GB/s (DDR400) in dual-channel mode.
Supports ECC DIMMs.
Supports 128Mb, 256Mb, 512Mb, 1Gb DDR technologies.
Supports only x8, x16, DDR devices with four banks
Registered DIMMs not supported
Supports opportunistic refresh
Up to 16 simultaneously open pages (four per row, four rows
maximum)
INSTALLATIONS
6MB820 User’s Manual
Setting the Jumpers
Jumpers are used on MB820 to select various settings and features
according to your needs and applications. Contact your supplier if you
have doubts about the best configuration for your needs. The following
lists the connectors on MB820 and their respective functions.
Jumper Locations on MB820.............................................................7
JP1: RS232/422/485 (COM2) Selection..........................................8
JP2: COM1 RS232 +5V/+12V Power Setting.................................8
JP3: COM2 RS232 +5V/+12V Power Setting.................................8
JP4: Clear CMOS Contents................................................................9
JP5: COM3 RS232 +5V/+12V Power Setting.................................9
JP6: COM4 RS232 +5V/+12V Power Setting.................................9
JP7: DiskOnChip Address Select.....................................................10
JP8: Onboard VGA Enable/Disable.................................................10
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