MSI 848PM User Manual page 56

[PCI Device]
[Reserved]
MSI Reminds You...
IRQ (Interrupt Request) lines are system resources allocated to I/O
devices. When an I/O device needs to gain attention of the operating
system, it signals this by causing an IRQ to occur. After receiving the
signal, when the operating system is ready, the system will interrupt
itself and perform the service required by the I/O device.
PCI/VGA Palette Snoop
When set to [Enabled], multiple VGA devices operating on different buses can handle
data from the CPU on each set of palette registers on every video device. Bit 5 of the
command register in the PCI device configuration space is the VGA Palette Snoop bit
(0 is disabled). For example, if there are two VGA devices in the computer (one PCI
and one ISA) and the:
VGA Palette Snoop
Bit Setting
[Disabled]
[Enabled]
The setting must be set to [Enabled] if any ISA bus adapter in the system requires
VGA palette snooping.
INT Pin 1~8 Assignment
These items specify the IRQ line for each PCI slot. Settings: [3], [4], [5], [7], [9], [10],
[11], [12], [14], [15] and [Auto]. Selecting [Auto] allows BIOS to automatically deter-
mine the IRQ line for each PCI slot.
For Plug & Play compatible devices designed for PCI bus
architecture.
The IRQ will be reserved for further request.
Data read or written by the CPU is only directed to the PCI
VGA device's palette registers.
Data read or written by the CPU is directed to both the PCI
VGA device's palette registers and the ISA VGA device's
palette registers, permitting the palette registers of both
VGA devices to be identical.
Action
BIOS Setup
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