(EOL, but available with some distributors. Please contact IBASE for more information.)

Intel® Pentium® 4 processor Industrial Motherboard with 533MHz FSB and USB 2.0 support


Datasheet in PDF


CPU Socket
Socket 478
Intel® Pentium® 4, 1.30GHz~3.06GHz

Intel® 845GV chipset
Processor Side Bus Frequency

533MHz (133MHz x4) / 400MHz (100MHz x4)
L2 Cache
256K/512K, CPU integrated
Award BIOS, ACPI supported
System Memory
Two DDR slots
Support up to 2GB PC200/266 DDR SDRAM
Intel® 845G / 845GV chipset integrated
AGP 4X, Optionally supports LVDS, CRT & TV-out interface
Primary LAN
ICH4 integrated Ethernet, 10Base-T / 100Base-TX
ICH4 integrated audio with AC97 Codec
Winbond 83627HF supports IrDA x 1, Parallel x 1, COM1 (RS232), COM2 (RS232/422/485), FDC up to 2.88MB (3 Mode support), hardware monitor

  IDE Interface
Built in ICH4; Two enhanced IDE supports 4 IDE devices
including UDMA33/66/100, PIO mode 4 and bus master
FDD Interface
Supports up to two floppy disk drives: 3.5" and/or 5.25" drives; 3 Mode support

Parallel Port
One parallel port supports SPP/EPP/ECP
Serial Ports
One RS-232/422/485 and three RS-232 ports
COM3 and COM4 supported by Winbond 83877



  • Supports Intel® Pentium® 4, up to3.06GHz
  • Intel® 845G / 845GV chipset on board
  • Two DDR slots for up to 2GB PC200/266 DDR
  • Integrated chipset VGA for CRT interface
  • ICH4 integrated 10/100 BaseT Ethernet
  • 3x PCI, 3x ISA, 1x MicroPCI, 1x AGP slot (for 845G)
  • Four COM ports, watchdog timer, DiskOnChip
  • Digital I/O, 4x USB 2.0, PCI to ISA Bridge

Watchdog Timer
Generates system reset; 256 levels
Solid State Disk Interface
Supports 2MB~288MB M-Systems DiskOnChip flash disk
Hardware Monitoring
Built in Winbond W83627HF; monitors system/CPU temperature and voltage status
USB 1.1 and 2.0 compliant
Supports 4 USB ports
Pin header
Keyboard and Mouse Connector
PS/2 type keyboard and mouse connectors
Digital I/O
4 in / 4 out
Expansion Slot
3 PCI, 3 ISA Slots, 1 MicroPCI
1 AGP slot (for MB800 only, not MB800V)*
PCI to ISA Bridge
Winbond 83628, Winbond 83629
Power Connector
ATX 12V power connector
Form Factor
ATX motherboard
305mm x 244mm (12" x 9.6")
Power Consumption
 Intel® Pentium® 4 processor 1.8GHz with 512MB DDR memory
 +5V: 5.7A; +12V:8.5A
 Intel® Pentium® 4 processor 2.2GHz with 512MB DDR memory
 +5V: 6.35A; +12V:6.2A

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:

MB800V - Socket 478 Intel® 845GV ATX Motherboard with VGA and integrated 10/100 LAN (no AGP slot, support Prescott processors)
Remarks: Add (-R) after the model name for RoHS-compliant version when ordering. Only applies for MB800V.


1 x Drivers CD
1 x User's Manual
1 x I/O shield
1 x IB3A cable kit (FDD, IDE, SATA, 1COM, 2COM)


MB800 I/O Connector Dimensions

  Contact Information:
IBASE Technology Inc.
11F, No. 3-1, Yuan Qu St., Nankang, Taipei, Taiwan, R.O.C. (Nankang Software Park)
Tel: 886-2-26557588     Fax: 886-2-26557388
Email: sales@ibase.com.tw 


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