MSI G52-MA00628 - Manual (Page 67)

BIOS Setup
3-25
IRQ Resources
The items are adjustable only when Resources Controlled By is set to Manual.
Press <Enter> and you will enter the sub-menu of the items. IRQ Resources list
IRQ 3/4/5/7/9/10/11/12/14/15 for users to set each IRQ a type depending on the
type of device using the IRQ. Settings are:
PCI Device For Plug & Play compatible devices designed for PCI
bus architecture.
Reserved The IRQ will be reserved for further request.
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:
The setting must be set to Enabled if any ISA bus adapter in the system
requires VGA palette snooping.
VGA Palette Snoop
Bit Setting Action
Disabled Data read or written by the CPU is only directed to the PCI
VGA device’s palette registers.
Enabled Data read or written by the CPU is directed to both the PCI
VGA device’s palette registers and the ISA VGA device’s pal-
ette registers, permitting the palette registers of both VGA
devices to be identical.