iv
PC-686BX(NLX)-LV, PC-686BX(NLX)-LVV
External Battery Connector: CN10............................... 24
4. Jumper Settings......................................................... 25
Watchdog Timer Output Selector: JP6.......................... 25
RS-232C/422/485 Selector Switch: JP1/JP2.................. 26
Transmit Data Control for Half-Duplex Mode.......... 26
RS-422/RS-485 Receiver Disable Control
Jumper Setting............ 27
I/O Addresses and Commands................................... 28
RS-422/485 Terminating Resistance: JP3..................... 28
On-Board LAN Selector: JP7......................................... 29
Disk On Chip Memory Address Selector: JP4............... 29
Display Type Setting: JP5.............................................. 30
CMOS Memory Erase: JP8 ............................................ 31
On Board VGA Selector: JP9 ......................................... 31
POWER Supply AT/ATX Selector: JP10........................ 32
LED Display: .................................................................. 32
5. CPU Board Resources................................................. 33
I/O Map........................................................................... 33
Memory Map................................................................... 34
DMA Channels................................................................ 34
PCI Configuration Space Map....................................... 35
Interrupts........................................................................ 35
PCI Interrupt Routing Map........................................... 36
6. Software Utilities ....................................................... 39
Intel 440BX Chipset Driver........................................... 39
INF Installation Utility ............................................. 39
Graphics Driver.............................................................. 40
Driver Support............................................................ 40
LAN Driver..................................................................... 41
Watchdog Timer (WDT) Setup....................................... 43
Upgrading the BIOS to a New Version.......................... 44
Hardware Monitoring..................................................... 45
7. BIOS Setup.............................................................. 53
Main Menu...................................................................... 56
Standard CMOS Setup................................................... 58
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