CPU Socket
Socket 478
CPU
Intel Pentium 4 Hyper Threading Technology, 2.26GHz~3.2GHz
Chipset
Intel 875P chipset
Processor Side Bus Frequency
533MHz/800MHz
L2 Cache
256K (Celeron) / 512K (Pentium 4) 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
ICH5R integrated LAN controller (10/100Mb)
Secondary LAN
Intel 82547GI (10/100/1000Mb) Gigabit LAN (optional)
Audio
ICH5R 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, Hardwaremonitoring (3 thermal inputs, 8 voltage monitor inputs, VID0-4,
1 chassis open detection, 3 fan headers)
IDE Interface
ICH5R built-in, IDE1, IDE2 (Ultra DMA 33/66/100),
PIO mode4 and bus master Serial ATA Two SATA ports, supports RAID0 or RAID1
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 9.5\")
Power Consumption
Pentium 4 2.0GHz/400 (256KB, 0.18m) with 512MB DDR memory
+5V: 0.47A; +12V: 9.34A
Pentium 4 2.4GHz/533 (512KB, 0.13m) with 512MB DDR memory
+5V: 0.65A; +12V: 5.94A
Operating Temperature
0°C~60°C (32°F~140°F)
Storage Temperature
-20°C~80°C (-68°F~176°F)
Relative Humidity
10%~90% (non-condensing)
Ordering Information:
MB820F - Socket 478 Intel 875P ATX Motherboard with VGA, integrated LAN and Gigabit LAN
MB820 - Socket 478 Intel 875P ATX Motherboard with VGA, integrated LAN
