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MB820- Intel 875P ATX Industrial Motherboard

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CPU Socket
Socket 478
Intel Pentium 4 Hyper Threading Technology, 2.26GHz~3.2GHz
Intel 875P chipset
Processor Side Bus Frequency
L2 Cache
256K (Celeron) / 512K (Pentium 4) Level 2 cache
Award BIOS , S upport s ACPI
System Memory
Four DDR sockets, supports 2.5V DDR400/333 (support
dual channel) up to 4GB , support s ECC function
SMI 712,
embedded 2 MB display memory
Primary LAN
ICH5 integrated LAN controller (10/100Mb) or
Intel 82547GI (10/100/1000Mb) Gigabit LAN (for MB820F)
ICH5 built-in Sound controller + AC97 Codec ALC650
(5.1 channel)
Winbond W 83627HF: IrDAx1 , LPT x1, COM1 (RS-232), COM2 (RS-232/ RS422/RS485), FDC 2.88MB, Hardware monitor ing (3 thermal inputs, 8 voltage monitor inputs, VID0-4, 1 chassis open detection, 3 f an h eader s )
IDE Interface

ICH5 built-in, IDE1, IDE 2 (Ultra DMA 33/66/100) , PIO mode 4 and bus master

- Supports Intel Pentium 4 Processor, up to 3.2GHz processor speed
- Intel 875P Chipset with 533Mhz/800MHz FSB
- SMI SM712, 2MB VGA for CRT display
- Four DDR sockets supports up to 4 GB
- ICH5R 10/100 LAN or Intel Gigabit LAN support
- AGP 8x slot, 4 PCI, 2 ISA slots, DOC socket
- Two SATA ports, Six USB 2.0 ports
- PCI to ISA bridge, Digital I/O, Watchdog tim


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
6 ports on board , USB 2.0 compliant
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
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 (-4°F~176°F)
Relative Humidity
10%~90% (non-condensing)

Ordering Information

MB820F - Socket 478 Intel 875P ATX Motherboard with VGA, Gigabit LAN
MB820 - Socket 478 Intel 875P ATX Motherboard with VGA, integrated 10/100 LAN
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