On Board Serial Port 1 - Abit IT5A User Manual

Introduction to BIOS
PCI IDE Card 2nd Channel:
This option can be enabled or disabled. BIOS default is Enable.
Since this channel uses IRQ15, if you want to use this channel, you have to enable this
option to make the BIOS assign IRQ15 to this channel.
PCI IDE Card IRQ Map to:
Three options are available for this item: PCI Auto, PCI-slotX and ISA.
ä PCI-Auto: The onboard BIOS auto-detects which PCI slot has an IDE card inserted
in.
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#).
Assign IRQ for PCI VGA :
You can assign IRQ for PCI VGA or not .
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. Ten options are
available: Disable, 3F8h/IRQ4, 2F8h/IRQ3, 3E8h/IRQ4 or 2E8h/IRQ3.3F8h/IRQ10,
2F8h/IRQ11, 3E8h/IRQ10, 2E8h/IRQ11, and AUTO.
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