IBM 8862 Hardware Maintenance Manual - Page 34

Viewing, system-error, Recovering

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2. To save the test log to a diskette, you must use a diskette that you have formatted yourself; this function does not work with preformatted diskettes. If the diskette has sufficient space for the test log, the diskette may contain other data. Viewing the system-error log You can also view the system-error log from the diagnostic programs. See the instructions in "POST error logs" on page 17. Recovering BIOS code If the BIOS code in the server has become damaged, such as from a power failure during a flash update, you can recover the BIOS using the recovery boot block and a BIOS flash diskette. You can download a BIOS flash diskette from http://www.ibm.com/pc/support/. The flash memory of the server consists of a primary page and a backup page. The J19 jumper on the I/O board controls which page is used to start the server. If the BIOS code in the primary page is damaged, you can use the backup page to start the server; then start the BIOS flash diskette to restore the BIOS code to the primary page. To recover the BIOS code, complete the following steps: 1. Read "Safety information" on page 147 and "Handling static-sensitive devices" on page 30. 2. Turn off the server and peripheral devices and disconnect all external cables and power cords; then, remove the cover. IXA voltage 3 2 1 jumper (J26) Boot recovery (BIOS) jumper (J19) Power-on password override jumper (J20) Disable Wake on LAN 1 2 3 jumper (J24) 3. Locate the boot block recovery jumper (J19 on the I/O board). 4. Move J19 to pins 2 and 3 to enable secondary boot block page. 5. Insert the BIOS flash diskette into the diskette drive. 6. Restart the server. 24 IBM xSeries 365 Types 8861, 8862: Hardware Maintenance Manual and Troubleshooting Guide 123 123

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2.
To
save
the
test
log
to
a
diskette,
you
must
use
a
diskette
that
you
have
formatted
yourself;
this
function
does
not
work
with
preformatted
diskettes.
If
the
diskette
has
sufficient
space
for
the
test
log,
the
diskette
may
contain
other
data.
Viewing
the
system-error
log
You
can
also
view
the
system-error
log
from
the
diagnostic
programs.
See
the
instructions
in
“POST
error
logs”
on
page
17.
Recovering
BIOS
code
If
the
BIOS
code
in
the
server
has
become
damaged,
such
as
from
a
power
failure
during
a
flash
update,
you
can
recover
the
BIOS
using
the
recovery
boot
block
and
a
BIOS
flash
diskette.
You
can
download
a
BIOS
flash
diskette
from
The
flash
memory
of
the
server
consists
of
a
primary
page
and
a
backup
page.
The
J19
jumper
on
the
I/O
board
controls
which
page
is
used
to
start
the
server.
If
the
BIOS
code
in
the
primary
page
is
damaged,
you
can
use
the
backup
page
to
start
the
server;
then
start
the
BIOS
flash
diskette
to
restore
the
BIOS
code
to
the
primary
page.
To
recover
the
BIOS
code,
complete
the
following
steps:
1.
Read
“Safety
information”
on
page
147
and
“Handling
static-sensitive
devices”
on
page
30.
2.
Turn
off
the
server
and
peripheral
devices
and
disconnect
all
external
cables
and
power
cords;
then,
remove
the
cover.
3
2
1
1
2
3
1
2
3
1
2
3
IXA voltage
jumper (J26)
Disable Wake on LAN
jumper (J24)
Power-on password override
jumper (J20)
Boot recovery (BIOS)
jumper (J19)
3.
Locate
the
boot
block
recovery
jumper
(J19
on
the
I/O
board).
4.
Move
J19
to
pins
2
and
3
to
enable
secondary
boot
block
page.
5.
Insert
the
BIOS
flash
diskette
into
the
diskette
drive.
6.
Restart
the
server.
24
IBM
xSeries
365
Types
8861,
8862:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide