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ATX MotherBoards
MB820
Socket 478 Pentium® 4 ATX Motherboard w/ Intel® 875P Chipset



(Click to enlarge)
Features
Specifications
Ordering Information
Datasheet
FEATURES
  • Supports Pentium® 4 / Celeron® processors
    Up to 3.2GHz, 533MHz/800MHz FSB
  • 4x DDR DIMM, Max. 4GB
  • Onboard 10/100BaseT or Gigabit LAN
  • SMI SM712 VGA, 4MB memory, ALC650 audio
  • 6x USB 2.0, 2x SATA, 4x COM
  • Digital I/O, Watchdog timer, DiskOnChip®
  • 1x AGP, 4x PCI, 2x ISA slots
MB820 SPECIFICATIONS

CPU Socket
Socket 478

CPU
Intel® Pentium® 4 / Celeron, up to 3.2GHz

Chipset
Intel® 875P chipset

Processor Side Bus Frequency
533MHz/800MHz

L2 Cache
256K (Intel® Celeron® processor) / 512K (Intel® Pentium® 4 processor) Level 2 cache

BIOS
Award BIOS, Supports ACPI

System Memory
Four DDR sockets, supports 2.5V DDR400/333 (support
dual channel) up to 4GB, supports ECC function

VGA
SMI 712, embedded 2MB display memory

Primary LAN
ICH5 integrated LAN controller (10/100Mb)
or Intel® 82547GI (10/100/1000Mb) Gigabit LAN

Audio
ICH5 built-in Sound controller + AC97 Codec ALC650
(5.1 channel)

LPC I/O
Winbond W83627HF: IrDAx1, LPTx1, COM1 (RS-232),
COM2 (RS-232/ RS422/RS485), FDC 2.88MB, Hardware
monitoring (3 thermal inputs, 8 voltage monitor inputs, VID0-4,
1 chassis open detection, 3 fan headers)

Secondary Super I/O
Winbond W83877 (COM3/RS232, COM4/RS-232)

IDE Interface
ICH5 built-in, IDE1, IDE2 (Ultra DMA 33/66/100), PIO mode
4 and bus master

Serial ATA
Two SATA ports

Watchdog Timer
Generates system reset; 256 levels

Solid State Disk Interface
DiskOnChip socket supports up to 512MB capacity

USB
6 ports on board, USB 2.0 compliant

IrDA
Pin header

Keyboard and Mouse Connector
PS/2 type keyboard and mouse connectors

Digital I/O
4 in / 4 out

Expansion Slots
1 AGP, 4 PCI, 2 ISA

PCI to ISA Bridge
Winbond 83628, 83629

Power Connector
ATX 12V power connector

Form Factor
ATX motherboard

Dimensions
305mm x 241mm (12" x 9.6")

Power Consumption
Pentium® 4 3.06GHz w/ 2GB DDR
+5V: 1.49A
+12V: 10.45A

ENVIRONMENTAL FACTORS

Operating Temperature

0°C~60°C (32°F~140°F)

Storage Temperature

-20°C~80°C (-4°F~176°F)

Relative Humidity

10%~90% (non-condensing)


ORDERING INFORMATION

MB820-R Socket 478 Intel® 875P ATX Motherboard with VGA and 10/100 LAN
MB820F-R Socket 478 Intel® 875P ATX Motherboard with VGA and Gigabit LAN

 
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