Removing the cover, Removing, Cover – Lenovo 3797 User Manual
Page 53
1
Cover
11
CD/DVD
drive
2
PCI
riser-card
assembly
12
Operator
information
panel
3
PCI
riser-card
assembly
13
Front
bezel
(some
models)
4
Heat
sink
14
4-drive
filler
panel
5
Microprocessor
15
SAS
hard
disk
drive
backplanes
6
Heat-sink
retention
module
16
SAS
riser
card
7
DIMM
17
Fan
bracket
8
System
board
18
Fans
9
Power-supply
filler
panel
19
DIMM
air
baffle
10
Power
supply
20
Microprocessor
2
air
baffle
Removing
the
cover
Important:
Before
you
install
optional
hardware,
make
sure
that
the
server
is
working
correctly.
Start
the
server,
and
make
sure
that
the
operating
system
starts,
if
an
operating
system
is
installed,
or
that
a
19990305
error
code
is
displayed,
indicating
that
an
operating
system
was
not
found
but
the
server
is
otherwise
working
correctly.
If
the
server
is
not
working
correctly,
see
the
Hardware
Maintenance
Manual
for
diagnostic
information.
To
remove
the
cover,
complete
the
following
steps:
1.
Read
the
safety
information
that
begins
on
page
and
2.
If
you
are
planning
to
view
the
error
LEDs
that
are
on
the
system
board
and
components,
leave
the
server
connected
to
power
and
go
directly
to
step
3.
If
you
are
planning
to
install
or
remove
a
microprocessor,
memory
module,
PCI
adapter,
battery,
or
other
non-hot-swap
optional
device,
turn
off
the
server
and
all
attached
devices
and
disconnect
all
external
cables
and
power
cords
(see
Chapter
5.
Installing
optional
devices
and
replacing
customer
replaceable
units
37