6. BIOS Configuration
MVBX2-X User’s Manual
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PNP and PCI Setup
This “
PNP and PCI Setup
” option configures the PCI bus slots. All PCI bus slots on the
system use INTA#, thus all installed PCI cards must be set to this value.
PNP OS Installed
This field allows you to use a Plug-and Play (PnP) operation system to configure the PCI
bus slots instead of using the BIOS. Therefore, interrupts may be reassigned by the OS
when Yes is selected. When a non-PnP OS is installed or to prevent reassigning of interrupt
settings, select the default setting of No.
Resources Controlled By
These fields set how IRQ use is determined for each PCI slot. The default setting for each
field is Auto, which uses auto-routing to determine IRQ use. The other options are manual
settings of NA, 5, 7, 9, 10, 11, 12, 14 or 15 for each slot.
Reset Configuration Data
When Enabled the system BIOS will clear/reset the ESCD during POST. After clearing the
ESCD, the BIOS will then change this item’s value to “Disabled”. Otherwise, the ESCD data
would become useless.
When enabled, up to four Dwords of data can be written to the PCI bus without interrupting
the CPU. When disabled, a write buffer is not used and the CPU read cycle will not be
completed until the PCI bus signals that it is ready to receive the data.
CPU to PCI Write Buffer
When enabled, up to four Dwords of data can be written to the PCI bus without interrupting
