Installation and Setup 31
.
1.7.1 Clear CMOS/RTC/Password
NOTE
The BIOS has the capability of password protecting casual access to the unit’s CMOS setup screens.
The CMOS Clear switch allows the user to clear the password in the case of a forgotten password.
This also clears all CMOS settings and restores factory defaults.
To
clear
the
CMOS
password:
1.
Turn
off
power
to
the
unit.
2.
Install
jumper
at
E502,
pins
3
‐
4.
3.
Wait
approximately
five
seconds.
4.
Remove
jumper
from
E502,
pins
3
‐
4.
5.
Power
up
the
unit.
When
power
is
reapplied
to
the
unit,
the
CMOS
password
will
be
cleared,
and
the
CMOS
will
be
set
to
its
defaults.
For
conduction
‐
cooled
options,
E502
is
not
loaded.
To
clear
the
CMOS,
perform
the
steps
outlined
above,
except
short
across
the
pads
of
R1065
at
step
2.
1.7.2 BIOS Setup
The
SBC622
has
an
onboard
BIOS
Setup
program
that
controls
many
configuration
options.
These
options
are
saved
in
a
special
non
‐
volatile,
battery
‐
backed
memory
chip
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
VPX
backplane.
The
CMOS
configuration
controls
many
details
concerning
the
behavior
of
the
hardware
from
the
moment
power
is
applied.
The
CMOS
clear
switch
clears
BIOS
settings
to
factory
defaults.
Details
of
the
SBC622
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 VPX backplane. If the board is removed from the backplane, these
settings will be lost.
Summary of Contents for OpenVPX VPXcel6 SBC622
Page 2: ...Document History Hardware Reference Document Number 500 9300527818 000 Rev B March 18 2011 ...
Page 33: ...Installation and Setup 33 Figure 1 3 PMC Installed onto 2 PMC Site Model F ...
Page 37: ...Installation and Setup 37 Figure 1 5 Front Panel SBC622 Isometric View Convection cooled F F ...
