NEC DIRECTION SP B - SERVICE MANUAL 1998 Service Manual page 5

vi Contents
System Board Removal......................................................................................... 5-10
Illustrated Parts Breakdown ......................................................................................... 5-12
Appendix A System Specifications
Appendix B Connector Pin Assignments
Serial Interface Connectors .......................................................................................... B-4
Parallel Interface Connector ......................................................................................... B-5
Power Supply (Primary)............................................................................................... B-6
Keyboard and Mouse Connectors................................................................................. B-6
Front Panel .................................................................................................................. B-7
Diskette Drive Interface Pin Assignments..................................................................... B-8
IDE Interface Connectors ............................................................................................ B-9
DIMM Sockets ............................................................................................................ B-10
AGP Connector ........................................................................................................... B-11
ISA Expansion Bus Connector Pin Assignments........................................................... B-12
PCI Expansion Bus Connector Pin Assignments........................................................... B-14
Universal Serial Bus (USB) Connectors ....................................................................... B-15
Appendix C System Resources
IRQ Settings ................................................................................................................ C-1
Viewing System Resources .......................................................................................... C-2
Locating the Jumper..................................................................................................... C-2
Clearing Your Password ....................................................................................... C-3
Recovering the BIOS ............................................................................................ C-4
Figures
Figure 3-1 Releasing the Cover .................................................................................... 3-4
Figure 3-2 Aligning the Tabs........................................................................................ 3-4
Figure 3-3 Locating Expansion Slots............................................................................ 3-6
Figure 3-4 Removing the Slot Cover ............................................................................ 3-6
Figure 3-5 Installing a Board........................................................................................ 3-7
Figure 3-6 Removing a DIMM..................................................................................... 3-10
Figure 3-7 Installing a DIMM ...................................................................................... 3-11
Figure 3-8 Locating Device Slots ................................................................................. 3-12
Figure 3-9 System Board Cable Connectors ................................................................. 3-13