20
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ATXCTL: Power Supply to Mainboard Connector
PIN DESCRIPTION
1 5VSB
2 ATX-ON
3 GND
3.7 USB Port Connectors
NOVA-8890 provides 4 built-in USB2.0 ports for new I/O bus expansion.
USB1/USB2
PIN DESCRIPTION PIN DESCRIPTION
1 VCC 2
GROUND
3 DATA0- 4 DATA1+
5 DATA0+ 6 DATA1-
7 GROUND 8
VCC
3.8 IrDA Infrared Interface Port
NOVA-8890 has a built-in IrDA port which supports Serial Infrared (SIR) or
Amplitude Shift Keyed IR (ASKIR) interface. To use the IrDA port, configure SIR
or ASKIR model in the BIOS under Peripheral Setup COM2. In the case, the
normal RS-232 COM 2 will be disabled.
•
IR: IrDA Connector
PIN DESCRIPTION
1 VCC
2 NC
3 IR-RX
4 Ground
5 IR-TX
6 NC
3.9 Fan Connectors (FAN1)
NOVA-8890 provides two CPU cooling fan connectors, which can supply
12V/500mA to the cooling fan. All connectors have the same pin assignments
and provide a "rotation" pin to get rotation signals from fans and notice the
system. Therefore the system BIOS can recognize fan speed. Please note that
only specified fan can issue the rotation signals.
