Real
Time
Diagnostics
Real
Time
Diagnostics
can
help
you
diagnose
certain
devices
while
the
operating
system
is
running,
to
prevent
and
minimize
server
downtime.
For
more
information
and
to
download
Real
Time
Diagnostics,
go
to:
http://www-1.ibm.com/support/docview.wss?uid=psg1MIGR-50681.
Recovering
from
a
BIOS
update
failure
The
server
has
an
advanced
recovery
feature
that
will
automatically
switch
to
a
backup
BIOS
page
if
the
BIOS
code
in
the
server
has
become
damaged,
such
as
from
a
power
failure
during
an
update.
The
flash
memory
of
the
server
consists
of
a
primary
page
and
a
backup
page.
If
the
BIOS
code
in
the
primary
page
is
damaged,
the
baseboard
management
controller
will
detect
the
error
and
automatically
switch
to
the
backup
page
to
start
the
server.
If
this
happens,
a
POST
message
Booted
from
backup
POST/BIOS
image
is
displayed.
The
backup
page
version
might
not
be
the
same
version
as
the
primary
page
version.
You
can
then
recover
or
restore
the
original
primary
page
BIOS
by
using
a
BIOS
flash
diskette.
Note:
To
create
and
use
a
diskette,
you
must
add
an
optional
external
diskette
drive
to
the
server.
To
recover
the
BIOS
code
and
restore
the
server
operation
to
the
primary
page,
complete
the
following
steps:
1.
Download
the
latest
version
of
the
BIOS
code
from
http://www.ibm.com/pc/support/.
2.
Update
the
BIOS
code,
following
the
instructions
that
come
with
the
update
file
that
you
downloaded.
This
will
automatically
restore
and
update
the
primary
page.
3.
Restart
the
server.
If
that
procedure
fails,
the
server
might
not
restart
correctly
or
might
not
display
video.
To
manually
restore
the
BIOS
code,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
vii
and
“Handling
static-sensitive
devices”
on
page
100.
2.
Turn
off
the
server
and
peripheral
devices
and
disconnect
all
external
cables
and
power
cords;
then,
remove
the
cover.
3.
Locate
the
boot
block
recovery
jumper
(J14
on
the
I/O
board)
(see
“I/O
board
internal
connectors
and
jumpers”
on
page
8).
4.
Disconnect
the
server
from
the
ac
power
source.
5.
Move
the
J14
jumper
to
pins
2
and
3
to
enable
the
backup
page.
6.
Wait
30
seconds;
then,
connect
the
server
to
the
ac
power
source.
7.
Insert
the
BIOS
flash
diskette
into
the
external
diskette
drive.
8.
Restart
the
server.
9.
When
POST
starts,
select
1
-
Update
POST/BIOS
from
the
menu
that
contains
various
flash
(update)
options.
10.
When
you
are
asked
whether
you
want
to
save
the
current
code
to
a
diskette,
type
N.
Chapter
2.
Diagnostics
77
