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34 XVR16*4th Generation Intel® Core™ i7 Based Rugged VME Single Board Computer
Publication No.
500-9300007876-000
Rev. C.0
4.2.2 BIOS Setup
The XVR16 has an onboard BIOS Setup program that controls many configuration
options. These options are saved in a special non-volatile memory area and are
collectively referred to as the board’s CMOS Configuration. The CMOS contents
are preserved as long as battery power is applied to the VBAT pin on the VME
backplane or the onboard battery is installed. (Refer to
on page 111.) The CMOS configuration controls many details
concerning the behavior of the hardware from the moment power is applied. To
clear BIOS settings to factory defaults, refer to
.
Details of the XVR16 BIOS setup program are included in
.
NOTE
The BIOS referred to in this Manual is an EFI BIOS.
CAUTION
Battery backup of critical CMOS settings is provided by the system via the VBAT signal on the VME
backplane. If the board is removed from the backplane, these settings will be lost if no battery is
installed onboard.
4.3 Unexpected Resets
A set of special registers is implemented onboard to locate the reset source in the
event the XVR16 unexpectedly issues a reset and starts booting again. For every
reset source set, there is a special bit that can be read in the next boot up.
See
Table 8-9, Reset Cause Register 1 (0x616)
and
4.4 Remote Ethernet Booting
The XVR16 is capable of booting from a server using the 10/100/1000 Mbit
Ethernet ports over a network utilizing the Intel Boot Agent. The Intel Boot Agent
provides the ability to remotely boot the XVR16 using the PXE protocol. This
feature allows users to create systems ensuring disk drive reliability, without the
extra cost of adding NAND Flash drives.