C
Pinouts and Mapping
114
Onboard switches, headers, and connectors
Onboard switches
There
are
two
switches
on
the
CPM,
both
on
the
front
panel,
as
follow:
•
The
reset
switch
•
The
hot
swap
eject
switch
The
recessed
reset
push
button
(SW1)
is
located
in
the
lower
half
of
the
front
panel,
just
above
the
Base/Fabric
channel
Status
LEDs
(see
Figure 2
on
page 17).
The
hot
swap
eject
switch
is
connected
to
the
lower
blade
latch
assembly.
When
the
latch
is
opened,
it
causes
the
switch
to
signal
to
the
IPMC
that
a
hot
swap
of
the
blade
is
desired.
The
IPMC
monitors
the
process
and
controls
the
front
panel
H/S
LED
status.
When
the
H/S
LED
turns
steady
blue,
the
top
and
bottom
latches
can
then
be
used
to
eject
the
blade
so
it
can
be
replaced.
Refer
to
Table 2
on
page 19
for
details
on
the
H/S
LED
status.
Onboard headers
There
are
several
CPM
onboard
headers,
but
only
the
Customer
header
(P2)
is
available
during
normal
operation.
Refer
to
Figure 3
on
page 18
for
the
location
of
the
Customer
header.
In
order
to
gain
access
to
the
Customer
header,
you
will
first
need
to
remove
the
CPM
from
its
slot
(see
Removing
the
CPM
on
page 71),
and
then
remove
the
CPM
cover
(see
Removing
the
CPM
board
cover
on
page 72).
Table 49
lists
the
header
pin
pairs
and
the
actions
associated
with
an
installed
jumper.
Table 49. Customer header (P2)
When
installed,
each
jumper
causes
the
following
actions:
1
‐
2
Assert
Clear
NVRAM
The
BIOS
restores
the
NVRAM
defaults
on
every
boot
when
this
jumper
is
installed.
3
‐
4
Boot Block Write Protect
Asserts
the
WP*
signal
to
the
flash
to
prevent
any
changes
to
the
boot
block
region
after
the
BIOS
has
set
the
appropriate
lock
bits.
Pin Pair
No Jumper
Jumper Installed
1-2
N/C
Assert Clear NVRAM
3-4
Enable Boot Block
Write
Boot Block Write
Protect
5-6
N/C
BIOS Force Recovery
7-8
Enable eUSB Flash
Write
eUSB Flash Write
Protect
9-10
Enable UNR Shutdown Disable UNR Shutdown
11-12
N/C
ME Firmware Recovery
Mode
13-14
N/C
N/C
1
2
4
6
8 10 12
14
13
Board
