Appendix A Programming the Watchdog Timer....... 99
A.1 Programming the Watchdog Timer .............................100
Appendix B Pin Assignments .................................. 103
B.1 IDE Hard Drive Connector (CN1, CN2)......................104
B.2 Floppy Drive Connector (CN3).....................................105
B.3 Parallel Port Connector (CN4) .....................................106
B.4 SCSI Connector (CN5) ..................................................107
B.5 USB Connector (CN6) ...................................................108
B.6 VGA Connector (CN7) ..................................................108
B.7 Ethernet 10Base-T RJ-45 Connector (CN8) ................109
B.8 COM1/COM2 RS-232 Serial Port (CN9, CN10).........109
B.9 Keyboard and Mouse Connnector (CN11) ..................110
B.10 External Keyboard Connector (CN12) ........................110
B.11 IR Connector (CN13).....................................................110
B.12 CPU Fan Power Connector (CN14) .............................111
B.13 Power LED and Keylock Connector (CN16)...............111
B.14 External Speaker (CN17) ..............................................112
B.15 Reset Connector (CN18) ................................................112
B.16 HDD LED Connector (CN19) .......................................112
B.17 ATX Feature Connector (CN20) ..................................113
B.18 System I/O Ports ............................................................114
B.19 DMA Channel Assignments ..........................................115
B.20 Interrupt Assignments...................................................115
B.21 1st MB Memory Map.....................................................116
B.22 PCI Bus Map ..................................................................116
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