Specifications

Appendix B Pin Assignments................................... 117
B.1 IDE Hard Drive Connector (CN1, CN2).................. 118
B.2 Floppy Drive Connector (CN3).................................. 119
B.3 Parallel Port Connector (CN4)................................... 120
B.4 SCSI Connector (CN5)................................................ 121
B.5 USB Connector (CN6)................................................. 122
B.6 VGA Connector (CN7) ................................................ 122
B.7 Ethernet 10/100Base-T RJ-45 Connector
(CN8, CN34)....................................................................123
B.8 COM1/COM2 RS-232 Serial Port (CN9, CN10) ..........123
B.9 Keyboard and Mouse Connnector (CN11) ...................124
B.10 External Keyboard Connector (CN12) .........................124
B.11 IR Connector (CN13) .....................................................125
B.12 CPU Fan Power Connector (CN14) ..............................125
B.13 Power LED and Keylock Connector (CN16) ...............126
B.14 External Speaker Connector (CN17).............................126
B.15 Reset Connector (CN18) ................................................127
B.16 HDD LED Connector (CN19)........................................127
B.17 ATX Feature Connector (CN20) ....................................127
B.18 ATX Soft Power Switch (CN21) .....................................128
B.19 H/W Monitor Alarm (CN22) .........................................128
B.20 SM Bus Connector (CN23) ............................................128
B.21 Extension I/O Board Connector (CN27) ......................129
B.22 Extension I/O Board Connector (CN28) ......................129
B.23 PS/2 Mouse Connector (CN33) .....................................130
B.24 System I/O Ports .............................................................131
B.25 DMA Channel Assignments...........................................132
B.26 Interrupt Assignments ....................................................132
B.27 1st MB Memory Map .....................................................133
B.28 PCI Bus Map...................................................................133