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Table of Contents
1 Motherboard Description
1.1 Overview......................................................................................................................7
1.2 Motherboard Manufacturing Options ...........................................................................9
1.3 Form Factor .................................................................................................................9
1.4 I/O Shield...................................................................................................................10
1.5 Microprocessor ..........................................................................................................11
1.5.1 Microprocessor Upgrade .............................................................................11
1.5.2 Microprocessor Heatsink and Clips .............................................................11
1.6 Main System Memory ................................................................................................12
1.6.1 DRAM..........................................................................................................12
1.6.2 Parity and ECC DRAM ................................................................................12
1.7 Chipset ......................................................................................................................12
1.7.1 82441FX PCI Bridge and Memory Controller (PMC) ...................................12
1.7.2 82442FX Data Bus Accelerator (DBX) ........................................................13
1.7.3 82371SB PCI/ISA IDE Xccelerator (PIIX3)..................................................13
1.7.4 IDE Support.................................................................................................14
1.7.5 Secure Flash Support..................................................................................14
1.7.6 USB Support ...............................................................................................14
1.8 PC87307 Super I/O Controller...................................................................................15
1.8.1 Floppy Controller .........................................................................................15
1.8.2 Keyboard and Mouse Interface ...................................................................15
1.8.3 Real-Time Clock, CMOS RAM and Battery .................................................16
1.8.4 Infrared Support ..........................................................................................16
1.8.5 Parallel Port.................................................................................................16
1.9 Graphics Subsystem..................................................................................................16
1.9.1 S3 ViRGE Graphics Subsystem ..................................................................17
1.9.2 S3 ViRGE/DX Graphics Subsystem ............................................................18
1.9.3 LBP VESA Feature Connector ....................................................................18
1.9.4 Graphics Drivers and Utilities ......................................................................18
1.10 Audio Subsystem.......................................................................................................19
1.11 Management Extension Hardware.............................................................................19
1.12 Motherboard Connectors...........................................................................................20
1.12.1 Front Panel Connectors...............................................................................22
1.12.2 Memory/Expansion Connectors...................................................................25
1.12.3 VESA Feature Connector............................................................................27
1.12.4 Serial Header ..............................................................................................27
1.12.5 Audio Connectors........................................................................................28
1.12.6 Power Supply Connectors...........................................................................29
1.12.7 Floppy/IDE Connectors ...............................................................................30
1.12.8 Back Panel Connectors...............................................................................32
1.13 Jumper Settings.........................................................................................................35
1.13.1 Microprocessor Configuration (J4L2)...........................................................36
1.13.2 Motherboard Configuration (J4L2, J1J1) .....................................................36
1.14 Reliability ...................................................................................................................37