ADLINK ReadyBoard 740 - Manual (Page 52)

40 BIOS Setup
Boot Device Priority
The items allow you to set the sequence of boot devices where
BIOS attempts to load the disk operating system. First press
to enter the sub-menu. Then you may use the arrow
keys to select the desired device, then press <+>, <-> or
, key to move it up/down in the priority
list.
Boot Device Groups
The Boot devices are listed in groups by device type. First
press to enter the sub-menu. Then you may use the
arrow keys to select the desired device, then press <+>, <-> or
, key to move it up/down in the priority
list. Only the first device in each device group will be available
for selection in the Boot Device Priority option.