Step 8 Connect Onboard I/O - American Megatrends Excalibur PCI User Manual

Step 7 Connect Cables,
Continued
P28 Turbo Switch Connector
P28 is a two-pin single-inline berg that is attached via a cable to the externally-mounted bipolar Turbo switch on the
chassis. The turbo switch allows the user to set the motherboard clock speed to high or low speed.
P12 Auxiliary Power Off
P12 is connected to the power supply two-pin cable that can turn off power to the auxiliary power output. P12 can be
used to switch off power to the monitor after the timeout specified in Power Management Setup expires. P12 Pin 2 is
GND. Pin 1 is the signal to switch off power.

Step 8 Connect Onboard I/O

Onboard Serial Ports, Parallel Port, Floppy, and IDE
The Excalibur PCI motherboard has two serial ports (P14 and P10), a parallel port (P8), an IDE connector (P15), and
a floppy connector (P11) onboard. The serial and parallel port connectors are described below, the IDE connector on
page 53 and the floppy connector on page 51.
Chapter 4 Installation
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