On Board Serial Port 1 - Abit PX5 User Manual

Introduction of BIOS
ä PCI-slotX: Some old PCI IDE cards cannot be detected by the BIOS. If
the onboard BIOS cannot detect a PCE IDE card, you have to specify on
which PCI slot the IDE card is inserted, to make the BIOS assign IRQ14
for use by the interrupt number (INT#) of this PCI slot.
ä ISA: If you select ISA, it means that your PCI IDE card features a
"paddleboard" and a cable that can be connected to IRQ on the ISA slot,
because the BIOS will not assign any IRQ to this PCI slot.
Attention: Primary Channel and Secondary Channel : The BIOS needs two
independent interrupt number (INT#) lines to be allocated to the
PCI IDE card. Be careful not to choose twice the same interrupt
number (INT#).
Note: Since the interrupt number of the PCI slot is connected according the
design described below, there are some limitations, be careful.
+ The INT#A signal of the first PCI slot, the INT#B signal of the
+ The INT#B signal of the first PCI slot, the INT#C signal of the
+ The INT#C signal of the first PCI slot, the INT#D signal of the
+ The INT#D signal of the first PCI slot, the INT#A signal of the
On Board FDD Controller:
This is to Enable or Disable the Onboard FDD Controller.

On board Serial Port 1:

This is used to specify the I/O address and IRQ of Serial Port 1. Five options
are available: Disable, 3F8h/IRQ4, 2F8h/IRQ3, 3E8h/IRQ4 or 2E8h/IRQ3.
second PCI slot, the INT#C signal of the third PCI slot and the
INT#D signal of the fourth PCI slot, are the same, so be careful
not to use them simultaneously.
second PCI slot, the INT#D signal of the third PCI slot and the
INT#A signal of the fourth PCI slot, are the same, so be careful
not to use them simultaneously.
second PCI slot, the INT#A signal of the third PCI slot and the
INT#B signal of the fourth PCI slot, are the same, so be careful
not to use them simultaneously.
second PCI slot, the INT#B signal of the third PCI slot and the
INT#C signal of the fourth PCI slot, are the same, so be careful
not to use them simultaneously.
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