29
The PCI, which stands for Peripheral Component Interconnect, was developed
primarily to address two important issues: (a) How to allow peripheral devices to
take the fullest advantage of the power of CPU technology, and (b) Provide a
simpler installation process for peripheral devices, such as Network cards, EIDE
or SCSI controllers.
PCI accomplishes these goals with its 32-bit Data path Local Bus design, and
support for Plug & Play. Unlike older expansion bus architectures, PCI provides
peripherals with a direct connection to the CPU and memory. The PCI bus runs at
33Mhz and has a maximum transfer capability of 132MBps. With Plug & Play, the
system BIOS automatically determines hardware resources for new peripherals,
simplifying installation of multiple interface cards.
This Setup Menu provides configuration options for the PCI Bus and its assigned
resources.
Reset Configuration Data [Disabled]
Disabled:
Normal Setting
Enabled:
Select Enabled to reset Extended System Configuration Data
(ESCD) when you exit Setup if you have installed a new add-on
and the system reconfiguration has caused such a serious conflict
that the operating system cannot boot.
Resource Controlled By [Auto (ESCD)]
Manual:
The field defines that the PNP Card's resource is controlled by
manual. You can setup whether IRQ-X or DMA-X is assigned to
PCI/ISA PnP or Legacy ISA Cards.
Auto:
If your ISA card and PCI card are all PNP cards. Set this field to
"Auto". The BIOS will assign the interrupt resource automatically.
IRQ Resources [Press Enter]
Pressing
Enter
will take you to the IRQ Resources setup screen that allows you to
assign each IRQ to a device. When the resources are controlled manually,
pressing
Enter
will take you to the IRQ Resources setup screen that allows you to
assign each system interrupt as a PCI device or reserve the IRQ, depending on
the type of device using the interrupt:
PCI/VGA Palette Snoop [Disabled]
Selecting Enabled allows the BIOS to preview VGA Status, and to modify the
information delivered from the feature connector of the VGA card to the MPEG
card.
The options are:
Enabled
and
Disabled
.
Assign IRQ for VGA [Enabled]
Selecting Enabled allows the BIOS to automatically assign an IRQ for the video
card.
