Silicon Graphics Rackable H2106-G7 System User's Manual page 93

PCI Latency Timer
Allocate IRQ to PCI VGA
Pallette Snooping
PCI IDE Busmaster
Offboard PCI/ISA IDE Card
IRQ3 ~ IRQ15 Settings
DMA Channel 0 ~ DMA Channel 7 Settings
007-5683-004
This option sets the latency of all PCI devices on the PCI bus. Select a value to set the PCI latency
in PCI clock cycles. Options are 32, 64, 96, 128, 160, 192, 224 and 248.
Use this option to allocate IRQ to the PCI VGA card. Option include Yes and No. Selecting Yes
assigns IRQ to PCI VGA card if the card requests IRQ. Selecting No means the system will not
assign IRQ to the PCI VGA card even if the card requests IRQ.
This option Enables or Disables Pallette Snooping. If enabled, the system informs the PCI devices
that an ISA graphics device is installed in the system so the card will function normally.
Use this setting to Enable or Disable BIOS enabled uses of PCI Busmastering for reading or
writing to IDE drives.
Some PCI IDE cards may require this option to be set to the PCI slot number that is holding the
card. The Auto setting works for most PCI IDE cards. Options include Auto, PCI Slot 1,
PCI Slot 2, PCI Slot 3, PCI Slot 4, PCI Slot 5 and PCI Slot 6.
These settings specify if IRQ is available to be used by PCI/PnP devices or is reserved for use by
legacy ISA devices. Options are Available or Reserved.
These settings specify if a DMA Channel is available to be used by PCI/PnP devices or is reserved
for use by legacy ISA devices. Options are Available or Reserved.
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