Lenovo B50-45 Hardware Maintenance Manual - Lenovo B50-xx, B50-30 Touch Notebo - Page 21

Strategy for replacing a hard disk drive, Important notice for replacing a system board, Attention

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Lenovo B50-30/B50-30 Touch/B50-45/B50-70 Use the following strategy to prevent unnecessary expense for replacing and servicing FRUs: • If you are instructed to replace an FRU, but the replacement does not solve the problem, reinstall the original FRU before you continue. • Some computers have both a processor board and a system board. If you are instructed to replace either of them, and replacing one of them does not solve the problem, reinstall that board, and then replace the other one. • If an adapter or a device consists of more than one FRU, any of the FRUs may be the cause of the error. Before replacing the adapter or device, remove the FRUs one by one to see if the symptoms change. Replace only the FRU that changed the symptoms. Attention: The setup configuration on the computer you are servicing may have been customized. Running Automatic Configuration may alter the settings. Note the current configuration settings (using the View Configuration option); then, when service has been completed, verify that those settings remain in effect. Strategy for replacing a hard disk drive Always try to run a low‐level format before replacing a hard disk drive. This will cause all customer data on the hard disk to be lost. Make sure that the customer has a current backup of the data before performing this action. Attention: The drive startup sequence in the computer you are servicing may have been changed. Be extremely careful during write operations such as copying, saving, or formatting. If you select an incorrect drive, data or programs can be overwritten. Important notice for replacing a system board Some components mounted on a system board are very sensitive. Improper handling can cause damage to those components, and may cause a system malfunction. Attention: When handling a system board: • Do not drop the system board or apply any excessive force to it. • Avoid rough handling of any kind. • Avoid bending the system board and hard pushing to prevent cracking at each BGA (Ball Grid Array) chipset. 17

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Lenovo B50-30/B50-30 Touch/B50-45/B50-70
17
Use
 
the
 
following
 
strategy
 
to
 
prevent
 
unnecessary
 
expense
 
for
 
replacing
 
and
 
servicing
 
FRUs:
•
If
 
you
 
are
 
instructed
 
to
 
replace
 
an
 
FRU,
 
but
 
the
 
replacement
 
does
 
not
 
solve
 
the
 
problem,
 
reinstall
 
the
 
original
 
FRU
 
before
 
you
 
continue.
•
Some
 
computers
 
have
 
both
 
a
 
processor
 
board
 
and
 
a
 
system
 
board.
 
If
 
you
 
are
 
instructed
 
to
 
replace
 
either
 
of
 
them,
 
and
 
replacing
 
one
 
of
 
them
 
does
 
not
 
solve
 
the
 
problem,
 
reinstall
 
that
 
board,
 
and
 
then
 
replace
 
the
 
other
 
one.
•
If
 
an
 
adapter
 
or
 
a
 
device
 
consists
 
of
 
more
 
than
 
one
 
FRU,
 
any
 
of
 
the
 
FRUs
 
may
 
be
 
the
 
cause
 
of
 
the
 
error.
 
Before
 
replacing
 
the
 
adapter
 
or
 
device,
 
remove
 
the
 
FRUs
 
one
 
by
 
one
 
to
 
see
 
if
 
the
 
symptoms
 
change.
 
Replace
 
only
 
the
 
FRU
 
that
 
changed
 
the
 
symptoms.
Attention:
 
The
 
setup
 
configuration
 
on
 
the
 
computer
 
you
 
are
 
servicing
 
may
 
have
 
been
 
customized.
 
Running
 
Automatic
 
Configuration
 
may
 
alter
 
the
 
settings.
 
Note
 
the
 
current
 
configuration
 
settings
 
(using
 
the
 
View
 
Configuration
 
option);
 
then,
 
when
 
service
 
has
 
been
 
completed,
 
verify
 
that
 
those
 
settings
 
remain
 
in
 
effect.
Strategy for replacing a hard disk drive
Always
 
try
 
to
 
run
 
a
 
low
‐
level
 
format
 
before
 
replacing
 
a
 
hard
 
disk
 
drive.
 
This
 
will
 
cause
 
all
 
customer
 
data
 
on
 
the
 
hard
 
disk
 
to
 
be
 
lost.
 
Make
 
sure
 
that
 
the
 
customer
 
has
 
a
 
current
 
backup
 
of
 
the
 
data
 
before
 
performing
 
this
 
action.
Attention:
 
The
 
drive
 
startup
 
sequence
 
in
 
the
 
computer
 
you
 
are
 
servicing
 
may
 
have
 
been
 
changed.
 
Be
 
extremely
 
careful
 
during
 
write
 
operations
 
such
 
as
 
copying,
 
saving,
 
or
 
formatting.
 
If
 
you
 
select
 
an
 
incorrect
 
drive,
 
data
 
or
 
programs
 
can
 
be
 
overwritten.
Important notice for replacing a system board
Some
 
components
 
mounted
 
on
 
a
 
system
 
board
 
are
 
very
 
sensitive.
 
Improper
 
handling
 
can
 
cause
 
damage
 
to
 
those
 
components,
 
and
 
may
 
cause
 
a
 
system
 
malfunction.
Attention:
 
When
 
handling
 
a
 
system
 
board:
•
Do
 
not
 
drop
 
the
 
system
 
board
 
or
 
apply
 
any
 
excessive
 
force
 
to
 
it.
•
Avoid
 
rough
 
handling
 
of
 
any
 
kind.
•
Avoid
 
bending
 
the
 
system
 
board
 
and
 
hard
 
pushing
 
to
 
prevent
 
cracking
 
at
 
each
 
BGA
 
(Ball
 
Grid
 
Array)
 
chipset.