ECS 845PE-A800, Manual, Page: 44 / 70

38
Using BIOS
PNP/PCI Configurations
These options configure how PnP (Plug and Play) and PCI expansion cards operate in your
system. Both the ISA and PCI buses on the Motherboard use system IRQs (Interrupt
ReQuests) and DMAs (Direct Memory Access). You must set up the IRQ and DMA assign-
ments correctly through the PnP/PCI Configurations Setup utility for the motherboard to
work properly. Selecting PnP/PCI Configurations on the main program screen displays this
menu:
Reset Configuration Data (Disabled)
If you enable this item and restart the system, any Plug and Play configuration data stored
in the BIOS Setup is cleared from memory. New updated data is created.
Reset Configuration Data [Disabled]
Resources Controlled by [Auto]
IRQ Resources Press Enter
PCI/VGA Palette Snoop [Disabled]
Assign IRQ For USB [Enabled]
INT Pin 1 Assignment [Auto]
INT Pin 2 Assignment [Auto]
INT Pin3 Assignment [Auto]
INT Pin4 Assignment [Auto]
INT Pin5 Assignment [Auto]
INT Pin6 Assignment [Auto]
INT Pin7 Assignment [Auto]
INT Pin8 Assignment [Auto]
x
Default is Disabled. 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 OS cannot boot
Phoenix-AwardBIOS CMOS Setup Utility
PnP/PCI Configurations
Item Help
f
Menu Level
mnlk
F5:Previous Values F6:Fail-Safe Defaults F7:Optimized Defaults
: Move Enter: Select +/-/PU/PD:Value F10:Save ESC:Exit F1: General Help
Resources Controlled By (Auto)
You should leave this item at the default Auto. Under this setting, the system dynamically
allocates resources to Plug and Play devices as they are required. If you select the
“Manual” option, the prompt on the following line, “IRQ Resources” will become available
to you.
If you cannot get a legacy ISA (Industry Standard Architecture) expansion card to work
properly, you might be able to solve the problem by changing this item to Manual, and
then opening up the IRQ Resources submenu.
•
IRQ Resources (Press Enter): In the IRQ Resources submenu, if you as-
sign an IRQ to Legacy ISA, then that Interrupt Request Line is reserved for a
legacy ISA expansion card. Press <Esc> to close the IRQ Resources submenu.
In the Memory Resources submenu, use the first item Reserved Memory Base
to set the start address of the memory you want to reserve for the ISA
expansion card. Use the section item Reserved Memory Length to set the
amount of reserved memory. Press <Esc> to close the Memory Resources
submenu.
PCI/VGA Palette Snoop (Disabled)
This item is designed to overcome problems that can be caused by some non-standard VGA
cards. This board includes a built-in VGA system that does not require palette snooping so
you must leave this item disabled.