Lenovo ThinkCentre A30 Hardware Maintenance Manual (HMM) for ThinkCentre 2296, - Page 118

Recovering, POST/BIOS, update, failure

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8. From your browser, Click Back to return to the list of files. Carefully follow the printed instructions to download, extract, and install the update. Recovering from a POST/BIOS update failure Attention: If an interruption occurs during a Flash/BIOS upgrade, the BIOS might be left in an unusable state. The Boot Block jumper enables you to restart the system and recover the BIOS. To perform a Flash/BIOS recovery using the recovery jumper, use the following procedure. 1. Power-off the computer and remove the cover. 2. Move the system board recovery jumper to the clear position. Refer to "Identifying parts on the system board (all machine types)" on page 40 for more information. 3. Place the cover back on the system. 4. Place the BIOS flash recovery diskette in the floppy disk drive. 5. Restore power to the system by plugging in the power cord. 6. During the recovery process, there will be a sequence of short beeps. This sequence of beeps will be followed by a single long beep and then silence from the system speaker. During this process there will be no video. After the last long beep, hold the power button in for approximately ten seconds to turn the system off. 7. Remove the BIOS flash recovery diskette, power cord and cover. 8. Return the boot block recovery jumper to its original position, replace the cover and reinsert the BIOS flash recovery diskette in the floppy disk drive. 9. Connect the power cord back to the system and power the system on. When the system POST tests, it will report several POST errors. These errors can be ignored. The standard POST/BIOS Update Utility screen will appear after a pause. 10. Select the desired language from the list and press Enter. 11. Enter the serial number of the system and press Enter. 12. Enter the Machine Type and model number of the system and press Enter. 13. If a prompt appears stating that the BIOS ROM is older than (or the same as) the BIOS ROM image, press Y to continue. 14. When the flash programming is complete, remove the diskette from the drive and press any key to restart the system. 112 Hardware Maintenance Manual

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8.
From
your
browser,
Click
Back
to
return
to
the
list
of
files.
Carefully
follow
the
printed
instructions
to
download,
extract,
and
install
the
update.
Recovering
from
a
POST/BIOS
update
failure
Attention:
If
an
interruption
occurs
during
a
Flash/BIOS
upgrade,
the
BIOS
might
be
left
in
an
unusable
state.
The
Boot
Block
jumper
enables
you
to
restart
the
system
and
recover
the
BIOS.
To
perform
a
Flash/BIOS
recovery
using
the
recovery
jumper,
use
the
following
procedure.
1.
Power-off
the
computer
and
remove
the
cover.
2.
Move
the
system
board
recovery
jumper
to
the
clear
position.
Refer
to
“Identifying
parts
on
the
system
board
(all
machine
types)”
on
page
40
for
more
information.
3.
Place
the
cover
back
on
the
system.
4.
Place
the
BIOS
flash
recovery
diskette
in
the
floppy
disk
drive.
5.
Restore
power
to
the
system
by
plugging
in
the
power
cord.
6.
During
the
recovery
process,
there
will
be
a
sequence
of
short
beeps.
This
sequence
of
beeps
will
be
followed
by
a
single
long
beep
and
then
silence
from
the
system
speaker.
During
this
process
there
will
be
no
video.
After
the
last
long
beep,
hold
the
power
button
in
for
approximately
ten
seconds
to
turn
the
system
off.
7.
Remove
the
BIOS
flash
recovery
diskette,
power
cord
and
cover.
8.
Return
the
boot
block
recovery
jumper
to
its
original
position,
replace
the
cover
and
reinsert
the
BIOS
flash
recovery
diskette
in
the
floppy
disk
drive.
9.
Connect
the
power
cord
back
to
the
system
and
power
the
system
on.
When
the
system
POST
tests,
it
will
report
several
POST
errors.
These
errors
can
be
ignored.
The
standard
POST/BIOS
Update
Utility
screen
will
appear
after
a
pause.
10.
Select
the
desired
language
from
the
list
and
press
Enter.
11.
Enter
the
serial
number
of
the
system
and
press
Enter.
12.
Enter
the
Machine
Type
and
model
number
of
the
system
and
press
Enter.
13.
If
a
prompt
appears
stating
that
the
BIOS
ROM
is
older
than
(or
the
same
as)
the
BIOS
ROM
image,
press
Y
to
continue.
14.
When
the
flash
programming
is
complete,
remove
the
diskette
from
the
drive
and
press
any
key
to
restart
the
system.
112
Hardware
Maintenance
Manual