System
Backplane
The
following
procedures
describe
the
removal
and
replacement
of
the
system
backplane.
Before
performing
the
following
procedures,
read
the
“Safety
Notices”
on
page
ix.
It
is
strongly
recommended
that
the
system
be
placed
on
its
side,
on
a
flat
and
stable
surface.
Removing
the
System
Backplane
Attention:
Before
you
remove
or
disconnect
any
components,
note
where
they
are
connected
or
installed
in
system.
To
remove
the
system
backplane,
do
the
following:
1.
Shut
down
the
system
as
described
in
“Stopping
the
System”
on
page
246.
2.
Disconnect
the
power
source
from
the
system.
Note:
This
system
may
be
equipped
with
a
second
power
supply.
Before
continuing
with
this
procedure,
ensure
that
the
power
source
to
the
system
has
been
completely
disconnected.
3.
Label
and
disconnect
all
other
cables
located
at
the
rear
of
the
system.
4.
Place
the
system
into
the
service
position
as
described
in
“Placing
the
Model
275
into
the
Service
and
Operating
Position”
on
page
248.
5.
Remove
the
service
access
cover
as
described
in
“Removing
the
Service
Access
Cover”
on
page
249..
6.
Before
handling
any
card,
board,
or
memory
DIMM,
be
sure
to
use
your
electrostatic
discharge
strap
to
minimize
static-electric
discharge.
Refer
to
“Handling
Static-Sensitive
Devices”
on
page
244.
7.
Record
the
slot
number
and
location
of
each
adapter
being
removed.
8.
Remove
the
PCI
adapters
as
described
in
“Removing
a
Non-Hot-Pluggable
PCI
Adapter”
on
page
253..
9.
Remove
the
PCI
adapter
dividers
as
described
in
“Removing
a
PCI
Adapter
Divider”
on
page
257.
10.
Remove
both
power
supplies,
if
two
are
present
in
the
system,
or
remove
the
power
supply
and
filler
as
described
in
“Removing
a
Power
Supply
with
the
System
Power
Off”
on
page
288.
11.
Remove
the
service
processor
assembly
as
described
in
“Removing
the
Service
Processor
Assembly”
on
page
260.
12.
Remove
the
media
bay
chassis
as
described
in
“Removing
the
Media
Bay
Chassis”
on
page
285.
13.
Remove
the
disk
drives
as
described
in
“Removing
a
Hot-Swap
Disk
Drive”
on
page
277.
14.
Remove
the
fan
tray
as
described
in
“Removing
the
Fan
Tray
Assembly”
on
page
268.
15.
Remove
the
disk
drive
backplane
as
described
in
“Removing
the
Disk
Drive
Backplane
or
Filler”
on
page
281.
16.
Remove
the
memory
DIMMs
as
described
in
“Removing
Memory
DIMMs”
on
page
293.
17.
Remove
the
voltage
regulator
modules
as
described
in
“Removing
Voltage
Regulator
Modules”
on
page
295.
18.
Remove
the
7
hex-head
screws
holding
the
power
supply
bay
chassis
bracket
as
shown
in
the
figure
below.
Remove
the
power
supply
bay
chassis
bracket.
19.
Remove
the
blue
thumbscrew
holding
the
system
backplane
to
the
chassis.
Note:
The
blue
thumbscrew
is
the
only
screw
to
be
removed
in
order
to
release
the
backplane
from
the
chassis.
No
other
screws
should
be
removed
from
the
backplane.
20.
To
remove
the
system
backplane
from
the
chassis,
lift
the
front
edge
of
the
system
backplane
and
pull
it
towards
the
front
of
the
system.
Lift
the
system
backplane
up
and
out
of
the
system
chassis.
Chapter
9.
Removal
and
Replacement
Procedures
297
Summary of Contents for 9114-275 - IntelliStation POWER 275
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Page 81: ...Yes Go to Step 1321 16 on page 64 Chapter 3 Maintenance Analysis Procedures MAPs 63 ...
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