Lenovo S9e Laptop User Guide - IdeaPad S9e and S10e - Page 141

Appendix, Customer, Replaceable, Units

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Appendix B. Customer Replaceable Units (CRUs) Customer Replaceable Units (CRUs) are computer parts that the customer can upgrade or replace. There are two types of CRU: self-service and optional-service. Self-service CRUs are easy to install. They may be standalone or latched, or require a screwdriver to remove a maximum of two screws, whereas optional-service CRUs require some technical skill, as well as tools such as a screwdriver. However, both self-service and optional-service CRUs are safe for the customer to remove and replace. Customers are responsible for replacing all self-service CRUs. Optional-service CRUs can be removed and installed by customers or, during the warranty period, by a Lenovo service technician. Lenovo notebook computers contain both self-service and optional-service CRUs: v Self-service CRUs: these CRUs can be unplugged, or are secured by no more than two screws. Examples of this type of CRU are the AC adapter, the power cord, the battery, and the hard drive. In some products, such components as memory, wireless cards, notebook keyboards, and palm rests with fingerprint reader and touch pad may also be CRUs. v Optional-service CRUs: these CRUs are isolated parts within the computer that are concealed by an access panel, which is typically secured by more than two screws. Once the access panel is removed, the CRU is visible. Both types of CRU are listed in the table on the following page. The Lenovo Limited Warranty-01 (LLW) warranty URL "http://www.lenovo.com/ CRUs" provides instructions for replacing self-service and optional-service CRUs. CRU URL offers three options: auto detect, "key in the machine type," and a "drop © Copyright Lenovo 2008 133

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Appendix
B.
Customer
Replaceable
Units
(CRUs)
Customer
Replaceable
Units
(CRUs)
are
computer
parts
that
the
customer
can
upgrade
or
replace.
There
are
two
types
of
CRU:
self-service
and
optional-service.
Self-service
CRUs
are
easy
to
install.
They
may
be
standalone
or
latched,
or
require
a
screwdriver
to
remove
a
maximum
of
two
screws,
whereas
optional-service
CRUs
require
some
technical
skill,
as
well
as
tools
such
as
a
screwdriver.
However,
both
self-service
and
optional-service
CRUs
are
safe
for
the
customer
to
remove
and
replace.
Customers
are
responsible
for
replacing
all
self-service
CRUs.
Optional-service
CRUs
can
be
removed
and
installed
by
customers
or,
during
the
warranty
period,
by
a
Lenovo
service
technician.
Lenovo
notebook
computers
contain
both
self-service
and
optional-service
CRUs:
v
Self-service
CRUs:
these
CRUs
can
be
unplugged,
or
are
secured
by
no
more
than
two
screws.
Examples
of
this
type
of
CRU
are
the
AC
adapter,
the
power
cord,
the
battery,
and
the
hard
drive.
In
some
products,
such
components
as
memory,
wireless
cards,
notebook
keyboards,
and
palm
rests
with
fingerprint
reader
and
touch
pad
may
also
be
CRUs.
v
Optional-service
CRUs:
these
CRUs
are
isolated
parts
within
the
computer
that
are
concealed
by
an
access
panel,
which
is
typically
secured
by
more
than
two
screws.
Once
the
access
panel
is
removed,
the
CRU
is
visible.
Both
types
of
CRU
are
listed
in
the
table
on
the
following
page.
The
Lenovo
Limited
Warranty-01
(LLW)
warranty
URL
CRUs”
provides
instructions
for
replacing
self-service
and
optional-service
CRUs.
CRU
URL
offers
three
options:
auto
detect,
“key
in
the
machine
type,”
and
a
“drop
©
Copyright
Lenovo
2008
133