Acrosser AR-B1894 - Manual (Page 29)

4.2.2.2 Hard Disk Boot Priority
Select removable device priority, such as Pri.Master, Pri,Slave, USBHDD0,
USBHDD1, USBHDD2, and Bootable Add-in Cards.
4.2.2.3 Virus Warning
Allows to choose the VIRUS warning feature for IDE Hard Disk boot sector
protection. If this function is enabled and someone attempts to write data into this
area, BIOS will show a warning message on screen and alarm beep.
4.2.2.4 CPU L1 & L2 Cache
Cache memory is much faster than conventional DRAM system memory. These
fields allow you to enable or disable the CPUs Level 1 built-in cache and Level 2
external cache. Both settings are left as Enabled to significantly enhance the
performance of your computer.
4.2.2.5 Hyper-Threading
Technology
When you install a CPU featuring Hyper-Threading Technology, this item will
allow you to enable or disable the Hyper-Threading technology. Options:
Disabled、Enabled (default).
4.2.2.6 Quick Power On Self Test
Enable this function to reduce the amount of time required to run the POST
(Power On Self Test). BIOS will save time by skipping certain tests during POST.
It is recommended that you disable this setting. Finding a problem during boot up
is better than loosing data during your work.
4.2.2.7 First/Second/Third Boot Device
Allow you to select the First, Second and Third Boot Device. If your computer is
newly constructed, the next thing you want to do is load the Operating System
from scratch, directly off its CD. Before that, you need to set the First Boot Device
to the CDROM. This instructs the BIOS to boot from the CD drive before trying to
boot from the hard drive, which is still blank.