Intel Pentium III Processor/840, Manual, Page: 3 / 151

Intel
®
Pentium
®
III Processor/840 Development Kit Manual iii
Contents
Contents
1 About this Manual
...................................................................................................1-1
1.1 Content Overview...............................................................................................1-1
1.2 Text Conventions ...............................................................................................1-2
1.3 Technical Support ..............................................................................................1-3
1.3.1
Electronic Support .............................................................................1-3
1.3.2 Telephone Technical Support ...........................................................1-3
1.4 Product Literature...............................................................................................1-3
1.5 Related Documents............................................................................................1-4
2 Getting Started
.........................................................................................................2-1
2.1 Overview ............................................................................................................2-1
2.1.1
Baseboard Features ..........................................................................2-1
2.2 Included Hardware .............................................................................................2-3
2.3 Software Key Features.......................................................................................2-4
2.3.1
Embedded BIOS* for the Intel
®
Pentium
®
III Processor/840
Development Kit ................................................................................2-4
2.3.2 Microsoft Windows Embedded NT ....................................................2-5
2.4 Before You Begin ...............................................................................................2-6
2.5 Setting up the Evaluation Board.........................................................................2-7
2.6 Configuring the BIOS .......................................................................................2-12
3 Theory of Operation
...............................................................................................3-1
3.1 Evaluation Board Block Diagram........................................................................3-1
3.2 Mechanical Design .............................................................................................3-2
3.3 System Operation...............................................................................................3-2
3.3.1
Pentium
®
III Processor ......................................................................3-2
3.3.2 On-Board Voltage Regulators ...........................................................3-2
3.3.2.1 Voltage Regulator Module (VRM)........................................3-3
3.3.3 840 Chipset .......................................................................................3-3
3.3.3.1 Memory Controller Hub (MCH) ............................................3-4
3.3.3.2 I/O Controller Hub (ICH) ......................................................3-4
3.3.3.3 Firmware Hub (FWH)...........................................................3-5
3.3.3.4 The 64-bit PCI Controller Hub (P64H) .................................3-5
3.3.3.5 RDRAM-based Memory Repeater Hub (MRH-R) ................3-5
3.3.3.6 SDRAM-based Memory Repeater Hub (MRH-S) ................3-5
3.3.4 System Memory RDRAM ..................................................................3-5
3.3.5 Boot ROM..........................................................................................3-6
3.3.6 Expansion Slots and I/O Connectors ................................................3-6
3.3.7 AGP Connector .................................................................................3-6
3.3.8 64-Bit/66-MHz PCI Connectors .........................................................3-6
3.3.9 32-Bit/33-MHz PCI Connectors .........................................................3-6
3.3.10 Audio Subsystem ..............................................................................3-7
3.3.11 Speaker .............................................................................................3-7
3.3.12 82559ER LAN Controller ...................................................................3-7
3.3.13 Legacy I/O .........................................................................................3-7
3.3.14 Floppy Drive Support.........................................................................3-7
3.3.15 RS-232 Ports .....................................................................................3-7
3.3.16 IEEE 1284 Port..................................................................................3-7