Excalibur PCI Pentium ISA Motherboard User's Guide
47
Step 8 Connect Onboard I/O,
Continued
Checking for Conflicts
AMIBIOS automatically checks the adapter cards installed in the expansion slots on the motherboard for a hard disk or
floppy controller and serial or parallel ports and minimizes conflicts between onboard and offboard I/O.
If AMIBIOS...
then...
finds an IDE hard disk drive
controller on an adapter card in an
expansion slot,
the onboard IDE controller is
automatically disabled.
finds a floppy drive controller on an
adapter card in an expansion slot,
the onboard floppy controller
is automatically disabled.
finds serial ports on an adapter card
in an expansion slot,
the onboard serial ports are
automatically disabled.
finds a parallel port on an adapter
card in an expansion slot,
the onboard parallel port
uses an alternative address
P14 Serial Port 1 (COM1)
and
P10 Serial Port 2 (COM2)
P14 and P10 are 10-pin dual-inline bergs that connect via 10-pin double-row ribbons to male 9-pin D-sub connectors
fastened to the chassis to provide an ISA serial port interface. The connector pinout is shown below. Pin 1 on the bergs
is labeled “1". The wire leading to pin 1 on the cable usually has a colored stripe.
Pin
Use
Pin
Use
1
Carrier Detect
6
Data Set Ready
2
Receive Data
7
Request to Send
3
Transmit Data
8
Clear to Send
4
Data Terminal Ready
9
Ring Indicator
5
GND
10
Key (N/C)
Summary of Contents for Excalibur PCI
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Page 52: ...Chapter 5 AMIBIOS POST 48 ...
Page 60: ...Chapter 5 AMIBIOS POST 56 ...
Page 64: ...Chapter 6 WinBIOS Setup 60 ...
Page 82: ...Chapter 6 WinBIOS Setup 78 ...
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