Lanner electronics FW-7650 Series User Manual page 45

C0000,C4000,C8000,CC000,D0000,D4000,D8000,or DC000.
Leave this field at "Disabled". The settings are
PCI/VGA Palette Snoop :
"Enabled", "Disabled".
This option is used to control PCI latency
PCI Latency Timer (PCI Clocks):
timer period (follow PCI clocks). Based on PCI specification 2.1 or later and PCI bus
frequency in system, user can select different timer to meet their PCI bus environment
.