Aaeon PCM-4894 User Manual page 54

Reset Configuration Data
This item allows you to reset the configuration data.
PCI IRQ Activated By
This sets the method by which the PCI bus recognizes that an IRQ
service is being requested by a device. Under all circumstances,
you should retain the default configuration unless advised by your
system manufacturer. The choices are Level/Edge.
PCI IDE IRQ Map To
This allows you to configure your system to the type of IDE disk
controller in use. The more apparent difference is the type of
slot being used.
If you have equipped your system with a PCI controller, changing
this allows you to specify which slot has the controller and which
PCI interrupt (A, B, C, D) is associated with the connected hard
drives.
This setting refers to the hard disk drive itself, rather than
individual partitions.
Selecting PCI Auto allows the system to automatically determine
how your IDE disk system is configured.
48 PCM-4894 User Manual