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Contents
1 Product Description
1.1 Overview ......................................................................................................................10
1.1.1 Feature Summary..........................................................................................10
1.1.2 Board Layout .................................................................................................12
1.1.3 Block Diagram ...............................................................................................14
1.2 Online Support .............................................................................................................15
1.3 Processor.....................................................................................................................15
1.4 System Memory ...........................................................................................................16
1.4.1 Memory Configurations .................................................................................18
1.5 Intel
®
915GL Chipset ...................................................................................................22
1.5.1 Intel
®
GMA900 Graphics Controller...............................................................22
1.5.2 USB ...............................................................................................................23
1.5.3 IDE Support...................................................................................................24
1.5.4 Real-Time Clock, CMOS SRAM, and Battery................................................25
1.6 PCI Express* Connectors ............................................................................................25
1.7 I/O Controller................................................................................................................26
1.7.1 Serial Port......................................................................................................26
1.7.2 Parallel Port...................................................................................................26
1.7.3 Diskette Drive Controller................................................................................26
1.7.4 Keyboard and Mouse Interface .....................................................................26
1.8 Audio Subsystem .........................................................................................................27
1.8.1 Audio Subsystem Software ...........................................................................27
1.8.2 Audio Connectors..........................................................................................27
1.8.3 Intel
®
High Definition Audio Subsystem ........................................................28
1.9 LAN Subsystem ...........................................................................................................29
1.9.1 10/100 Mbits/sec LAN Subsystem.................................................................29
1.9.2 LAN Subsystem Software..............................................................................30
1.10 Hardware Management Subsystem.............................................................................30
1.10.1 Hardware Monitoring and Fan Control ASIC.................................................30
1.10.2 Thermal Monitoring........................................................................................31
1.10.3 Fan Monitoring...............................................................................................32
1.10.4 Chassis Intrusion and Detection....................................................................32
1.11 Power Management.....................................................................................................32
1.11.1 ACPI ..............................................................................................................32
1.11.2 Hardware Support .........................................................................................35
2 Technical Reference
2.1 Introduction ..................................................................................................................39
2.2 Memory Resources......................................................................................................39
2.2.1 Addressable Memory.....................................................................................39
2.2.2 Memory Map..................................................................................................41
2.3 DMA Channels.............................................................................................................41
2.4 Fixed I/O Map...............................................................................................................42
2.5 PCI Configuration Space Map......................................................................................43
2.6 Interrupts......................................................................................................................44