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PCI-6871 User’s Manual 18
standard PC/AT BIOS will report an error or fail during power-on self-
test (POST) after a reset. The PCI-6871’s BIOS standard setup menu
allows you to select “All, But Keyboard” under the “Halt On” selection.
This allows no-keyboard operation in embedded system applications,
without the system halting under POST.
2.13 Power & HDD LED, Reset Button Connector
(CN13, CN8)
Next, you may want to install external switches to monitor and control the
PCI-6871. These features are optional: install them only if you need
them. The front panel connector (CN13) is an 8-pin male, dual in-line
header. It provides connections for a speaker, hard disk access indicator,
watchdog output, and an input switch for resetting the card.
2.13.1 Power & HDD LED (CN13)
The HDD LED indicator for hard disk access is an active low signal (24
mA sink rate). Power supply activity LED indicator.
2.13.2 Reset switch (CN8)
If you install a reset switch, it should be an open single pole switch.
Momentarily pressing the switch will activate a reset. The switch should
be rated for 10 mA, 5 V.
2.14 Power connectors (CN11, FAN1)
2.14.1 Main power connector, +5 V, +12 V (CN11)
Supplies main power to the PCI-6871 (+5 V), and to devices that require
+12 V.
2.14.2 CPU Fan power supply connector (FAN1)
Provides power supply to CPU cooling fan. Only present when +5 V and
+12 V power is supplied to the board.