Abit AB-BH7 User Manual page 52

3-16 Chapter 3
IRQ Resources:
Click <Enter> key to enter its submenu:
This item sets each system interrupt to either [PCI Device] or [Reserved].
PCI/VGA Palette Snoop:
This item determines whether the MPEG ISA/VESA VGA cards can work with PCI/VGA or not.
[Enabled]: MPEG ISA/VESA VGA cards work with PCI/VGA.
[Disabled]: MPEG ISA/VESA VGA cards do not work with PCI/VGA.
Allocate IRQ To Video:
This item assigns an IRQ for the VGA card installed.
[Enabled]: Automatically assign an IRQ for the VGA card installed.
[Disabled]: The IRQ that was previously occupied by the VGA card will be available for new device.
Allocate IRQ To USB:
This item assigns an IRQ for the USB device connected.
[Enabled]: Automatically assign an IRQ for the USB device connected.
[Disabled]: The IRQ that was previously occupied by the USB device connected will be available for
new device.
PCI Latency Timer(CLK):
This item controls how long each PCI device can hold the bus before another takes over. When set to
higher values, every PCI device can conduct transactions for a longer time and thus improve the effective
PCI bandwidth. For better PCI performance, you should set the item to higher values.
PIRQ_0 Use IRQ No. ~ PIRQ_7 Use IRQ No.:
This item specifies the IRQ number manually or automatically for the devices installed on PCI slots.
BH7