Acrosser AR-B1894 - Manual (Page 43)

4.2.6.4 PCI/VGA Palette Snoop
This function determines if the graphics card should allow VGA palette snooping
by a fixed function display card. It is only useful if a fixed-function display card
using that requires a VGA-compatible graphics card to be present. Otherwise,
leave the setting as default Disabled.
4.2.6.5 Maximum
Payload
This item allows to set the maximum TLP payload size (unit in byte) for the PCI
Express devices.
4.2.7PC Health Status
4.2.7.1 Shutdown Temperature
This item allows to shutdown the system while the temperature is overheated.
4.2.7.2 CPU Warning Temperature
This function sets the CPU temperature value when the system will warn you
about possible overheating issue.
4.2.7.3 Smart CPU FAN Temperature
The Smart CPU Fan option in the BIOS slows down the fan when the CPU is
below a given temperature.