Asus NRL-LS - Manual (Page 85)

ASUS NRL-LS motherboard user guide 4-27
4.6 Boot Menu
BIOS Aware IPL Devices (BAID)
Legacy devices
The motherboard BIOS supports the BIOS Boot Specification (BBS)
version 1.01. BBS is an intelligent mechanism that provides flexible ways
to set boot sequence for Initial Program Load (IPL) devices such as
CD-ROMs, network remote boot ROM, and SCSI or RAID controllers on
PnP cards.
The IPL devices are classified into three categories:
PnP devices, includes Boot
Connection Vector (BCV) and
Bootstrap Entry Vector (BEV)
devices