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INTRODUCTION
MB820 User’s Manual
3
Specifications
Product Name
MB820
CPU Support
Intel
®
Pentium
®
4
CPU Voltage
0.8375V~1.6V (VRD 10)
System Speed
2.26G~3.2GHz
CPU Operating
Frequency
533MHz / 800MHz
Green /APM
APM1.2
CPU Socket
Socket 478
Chipset
Intel
®
875P Chipset
MCH: 82875P 1005-pin FC-BGA, ICH5: 82801ER
460-pin MBGA, FWH
BIOS
Award BIOS; Supports ACPI
Cache
256K (Celeron) / 512K(Pentium
®
4) Level 2 cache
VGA
SMI 712 2D Graphics Controller (PCI interface)
supports CRT display
Embedded 2MB display memory
AGP port
AGP 8X interface
LAN
ICH5 integrated LAN controller (10/100Mb) + Phy
82562EZ or one Intel
®
(1) Gigabit LAN controller
82547EI/GI (CSA port)
Audio
ICH5 built-in Sound cont AC97 Codec ALC650
(5.1 channel)
Memory type
Four (4) x DDR sockets; supports 2.5V DDR400/333
SDRAM DIMM module (support dual channel); Max.
capacity - 4GB; supports ECC function
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)
RTC/CMOS
Built in ICH5
Battery
Lithium battery
Keyboard Controller
Built in Winbond 83627HF
IDE
ICH5 built-in, IDE1, IDE2 (Ultra DMA 33/66/100)
Serial ATA connector
Two (2) ports
D-type connectors
PS/2 mouse, PS/2 keyboard, VGA (CRT), RJ-45,
Sound, USBx6
Power Connector
ATX 12V
Expansion Slots
1 AGP slot, 4 PCI slots, 2 ISA slots
PCI to ISA Bridge
Winbond W83628F with W83629D
Secondary Super I/O
Winbond 83877 (COM3, COM4 RS-232)
USB
Six (6) ports on board, USB 2.0 compliant
Digital I/O
4 In, 4 Out
SSD Interface
DiskOnChip socket supports up to 512MB capacity
Watchdog Timer
Supports 256 segments (0,1,2…255. sec/min)
System Voltages
+5V, +12V, -12V, 5VSB, -5V, 3.3V
Board Size
12” x 9.5” (ATX form factor)
Other Features
IrDA interface, Modem Wakeup, LAN Wakeup