VIA Technologies A7F129 Manual page 78

Mainboard User's Manual
AGP Driving Control: This item can be used to signal driving cur-
rent on AGP cards to Auto or Manual. Some AGP cards need
stronger than normal driving current in order to operate. The default
is Auto.
AGP Driving Value: When the previous item AGP Driving Control
is set to Manual, you can use this item to set the AGP current driving
value. The default is DA.
OnChip USB: This should be enabled if your system has a USB in-
stalled on the system board and you wish to use it. The default is
Enabled.
USB Keyboard Support: Enables function when the USB keyboard
is being used. Disabled (default) when an AT keyboard is used.
OnChip Sound: When set to Disable, the onboard audio chip is
turned off. The default is Auto.
OnChip Modem: This should be enabled if your system has a m o-
dem installed on the system board and you wish to use it. The default
is Auto.
CPU to PCI Write Buffer: When enabled, up to four words of data
can be written to the PCI bus without interrupting the CPU. When
disabled, a write buffer is not used and the CPU read cycle will not
be completed until the PCI bus signals that it is ready to receive the
data. The default is Enabled.
PCI Dynamic Bursting: When enabled, every write transaction goes
to the write buffer. Burstable transactions then burst on the PCI bus
and nonburstable transactions do not. The default is Enabled.
PCI Master 0 WS Write: When enabled, writes to the PCI bus are
executed with zero wait states. The default is Enabled.
PCI Delay Transaction: The chipset has an embedded 32-bit posted
write buffer to support delay transactions cycles. Enable to support
compliance with PCI specification version 2.1. The default is Dis-
abled.
72 Advanced Chipset Features