IBT Technologies ET863i, User Manual

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BIOS SETUP
22 ET863i User’s Manual
OnChip USB
The default setting of this filed is Enabled to enable the USB function on
board.
OnChip Keyboard Support
Enable this if you are using a USB keyboard.
OnChip Sound
This field enables or disables the on board audio function.
CPU to PCI Write Buffer
This controls the CPU write buffer to the PCI bus. If this buffer is disabled,
the CPU writes directly to the PCI bus. The default setting is
Enabled .
PCI Dynamic Bursting
This option controls the PCI write buffer. If this is enabled, then every
write transaction on the PCI bus goes straight to the write buffer. Burst
transactions are then sent on their way as soon as there are enough to
send in a single burst.
PCI Master 0 WS Write
This function determines whether there's a delay before any writes to the
PCI bus. If this is enabled, then writes to the PCI bus are executed
immediately (with zero wait states), as soon as the PCI bus is ready to
receive data.
PCI Delay Transaction
The chipset has an embedded 32-bit posted write buffer to support delay
transactions cycles. Select
Enabled to support compliance with PCI
specification version 2.1.
PCI#2 Access #1 Retry
This BIOS feature is linked to the CPU to PCI Write Buffer. Normally, the
CPU to PCI Write Buffer is enabled. All writes to the PCI bus are, as such,
immediately written into the buffer, instead of the PCI bus. This frees up
the CPU from waiting till the PCI bus is free. The data are then written to
the PCI bus when the next PCI bus cycle starts.
AGP Master 1 WS Write/Read
When enabled a single wait state is used when writing/reading to the AGP
bus. When disabled a 2 wait state is used. For optimal performance set this
to enabled. For improved stability set it to disabled.