Intel MB890 user manual Introduction, Product Description

INTRODUCTION

Introduction

Product Description

The MB890 Mini ITX board incorporates the Intel® advanced 855GME Chipset that contains two core components: the Memory Controller Hub (GMCH) and ICH4. The GMCH integrates a 400MHz Pentium® M processor front side bus controller, integrated graphics controller hub, integrated LVDS interface, two digital video out ports multiplexed with an AGP 4x controller, a 200/266/ 333MHz DDR-SDRAM controller.

The ICH4 integrates an Ultra ATA 100/66/33 controller, USB host controller that supports the USB 1.1 and USB 2.0 specification, LPC interface, FWH Flash BIOS interface controller, AC’97 digital controller and a hub interface for communication with the GMCH.

The Pentium M processor is a higher performance, lower power processor with several microarchitectural enhancements over existing Intel low-power processors. Some key features of the Pentium M processor microarchitecture include dynamic execution, data pre-fetch logic, 400MHz source-synchronous Front Side Bus (FSB), on-die 1 Mbyte second level cache (on-die 512Kbyte second level cache on Celeron M processor) with advanced transfer cache architecture, streaming SIMD extensions 2 (SSE2), and Enhanced Intel SpeedStep technology.

The super I/O W83627THF onboard integrates the following major peripheral functions in a chip: the disk driver adapter (FDC), serial port (UART), parallel port (SPP/EPP/ECP), keyboard controller (KBC), SIR, game port, MIDI port, hardware monitor, ACPI and On Now Wake-up features.

MB890 supports both DVI and optional TV-OUT with the use of the Chrontel CH7009 (default) or support DVI only with the use of the Chrontel CH7301. The TV-Out processor performs non-interlace to interlace conversion with scaling and flicker filters, and encodes the data into any of the NTSC or PAL video standards.

The MB890 Mini-ITX motherboard supports CRT VGA interface as well. Intel 82541GI supports Gigabit Ethernet functionality. The board also has AC97 5.1CH audio, 2 COM ports, UDMA 100, 6 USB ports, watchdog timer and a PCI slot for expandability. Dimensions of the board are 170mm x 170mm.

Note: MB890 uses 852GM and MB890F uses 855GME chipset.

MB890 User’s Manual 1