User`s manual

1. Introduction
1.1 Description
The AR-B1894 all-in-one Mini ITX is designed to fit a high performance Pentium
M based processor and compatible for high-end computer system application
with PCI bus architecture. It is made to meet today’s demanding pace, and keep
complete compatibility with hardware and software designed for the IBM PC/AT.
The on-board devices support one PCI slot, integrated graphics, and on-board
three Marvell Gigabit Ethernet controllers. It’s beneficial to build up a high
performance and high data availability system for VARs, or system integrators.
AR-B1894 support the following processors:
Intel ® uFC-PGA 478 Pentium M® / Celeron M processor FSB 400/533 MH
with 0.90 and 0.13 micron technology.
This Mini ITX can run with Intel Socket 479 Pentium/Celeron M processors and
support DIMM up to 2 GB dual-channel DDR2 533 memory. The enhanced on-
board one PCI-IDE interface can support 1 drive up to PIO mode 4 timing and
Ultra ATA 33/66/100 synchronous mode feature, one CF socket interface, and 2
Serial ATA high-speed data transfers at up to 150 MB/s connectors. The on-
board Super I/O chipset supports two serial ports, one SIR (Serial Infrared) port,
two high performance 16C550-compatible UARTs provide 16-byte send/receive
FIFOs, and two RS-232 serial port interfaces. Besides, H/W monitor function,
Intel High Definition Audio as 5.1 surround sound, six Hi-Speed USB 2.0 ports
offering up to 40X greater bandwidth over USB 1.1. Also provide dual display
function by VGA and DVI, by VGA, and LVDS interface.
The Mini-ITX standard makes the AR-B1894 work with the one slot PCI and one
6-pin Mini-DIN connector for PS/2 mouse and keyboard. The on-board Flash
ROM is used to make the BIOS update easier. The high precision Real Time
Clock/calendar is built to support Y2K for accurate scheduling and storing
configuration information. One 20-pin standard connector is designed to support
ATX power function. A feature of CPU overheat protection will give user more
security and stability. All of these features make AR-B1894 series excellent in
stand-alone applications.
Note: 1) The AR-B1894 only support Intel Pentium/Celeron M processor
(Dothan 400/533 FSB) for 0.13 and 0.90 micron.
2) The AR-B1894 only support DDR2 533 memory module.