Pnp/Pci Configurations - Abit IT7-MAX2 User Manual

3-20 Chapter 3

3-7. PnP/PCI Configurations

This section describes configuring the PCI bus system. PCI, or Personal Computer Interconnect, is a
system which allows I/O devices to operate at speeds nearing the speed the CPU itself uses when
communicating with its own special components. This section covers some very technical items and it is
strongly recommended that only experienced users should make any changes to the default settings.
Figure 3-9. PnP/PCI Configurations Setup Screen Shot
Force Update ESCD:
If you want to clear ESCD data next time you boot up, and ask the BIOS to reset the settings for the Plug
& Play ISA Card and the PCI Card, select Enabled. But the next time you boot up, this option will
automatically be set as Disabled.
NOTE: The ESCD (Extended System Configuration Data) contains the IRQ, DMA, I/O port, memory
information of the system. This is a specification and a feature specific to the Plug & Play BIOS.
Resources Controlled By:
Two options are available: Auto(ESCD) and Manual. Default setting is Auto(ESCD). When the setting is
Auto(ESCD), the IRQ Resources and Memory Resources can not be changed. When resources are
controlled manually, the IRQ Resources and Memory Resources can then be changed.
PCI PnP devices compliant with the Plug and Play standard, whether designed for the PCI bus
architecture.
The Award Plug and Play BIOS has the capability to automatically configure all of the boot and Plug and
Play compatible devices. If you select Auto (ESCD), The IRQ Resources item will be disabled, as the
BIOS automatically assigns them. But if you have trouble in assigning the interrupt resources
automatically, you can select Manual to set which IRQ is assigned to PCI PnP cards.
Figure 3-10 shows you the screen of IRQ resources. Each item has two options: PCI Device and Reserved.
The default setting is PCI Device.
IT7-MAX2