| Regardless which choice
you have made, either to use the BIOS resource setting
or the Windows setting, you also have to tell Windows
that you want the BIOS to control resource settings or
have Windows control it.
An often unknown feature in the Windows
operating system is the 'Plug and Play BIOS Settings'
and the 'IRQ Steering for PCI Bus' available through the
'PCI Bus' and 'Plug and Play BIOS' properties in System
Device Manager (See below).
Plug and play BIOS Properties
The 'Plug and Play BIOS' setting allows
you to force Windows to accept manual configuration of
the Plug and Play BIOS when Windows restarts.
Select the 'Disable NVRAM / ESCD updates'
option to force Windows to accept the manual BIOS settings.
If this checkbox is not selected then Windows determines
the settings.
PCI Bus Properties
Settings
You can control the way Windows allocates
resources for the PCI bus by selecting 'Use Hardware'
or 'Use BIOS' in the PCI Bus Properties / Settings page.
Select 'Use Hardware' if you want Windows
to accept the settings from the plug and play devices
connected to the PCI bus.
Select 'Use BIOS' if you are having problems
with a device although be aware that choosing this option
can cause Windows to stop responding.
The 'Override Bridges' option should
not be selected unless you want Windows to disregard the
BIOS settings for the PCI Bridge.
IRQ Steering
Select the 'IRQ Steering' tab in the
'PCI Bus Properties' page. This page allows you to choose
if Windows or the BIOS will handle the IRQ steering.
The other options specify where Windows
will look to pick up the settings.
To tell Windows that you want to let
the BIOS control the IRQ steering, de-select the 'Use
IRQ Steering' checkbox.
Windows uses one of four routing tables
to pick up the IRQ steering settings. It will search each
table in order until it finds one.
De-select the first table 'ACPI BIOS'
and reboot the system before de-selecting the next option
and rebooting.
If de-selecting these tables does not
fix the problem you are having with your PCI device then
select them all again before trying anything else.
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Resolving Hardware Conflicts