System
reliability
guidelines
To
help
ensure
proper
cooling
and
system
reliability,
observe
the
following
requirements
are
met:
v
Each
microprocessor
socket
always
contains
either
a
microprocessor
dust
cover
and
heat
sink
filler
or
a
microprocessor
and
heat
sink.
If
the
blade
server
has
only
one
microprocessor,
it
must
be
installed
in
microprocessor
socket
1.
v
You
do
not
operate
the
BladeCenter
unit
without
a
blade
server,
expansion
unit,
or
filler
installed
in
each
blade
bay.
See
the
documentation
for
your
BladeCenter
unit
for
additional
information.
Also,
make
sure
that
the
ventilation
holes
on
the
blade
server
are
not
blocked.
v
The
blade
server
battery
must
be
operational.
If
the
battery
becomes
defective,
replace
it
immediately.
For
instructions,
see
the
Problem
Determination
and
Service
Guide
.
Handling
static-sensitive
devices
Attention:
Static
electricity
can
damage
the
blade
server
and
other
electronic
devices.
To
avoid
damage,
keep
static-sensitive
devices
in
their
static-protective
packages
until
you
are
ready
to
install
them.
To
reduce
the
possibility
of
damage
from
electrostatic
discharge,
observe
the
following
precautions:
v
When
you
work
on
a
BladeCenter
T
unit,
use
an
electrostatic
discharge
(ESD)
wrist
strap,
especially
when
you
handle
modules,
optional
devices,
or
blade
servers.
To
work
correctly,
the
wrist
strap
must
have
a
good
contact
at
both
ends
(touching
your
skin
at
one
end
and
firmly
connected
to
the
ESD
connector
on
the
front
or
back
of
the
BladeCenter
T
unit).
v
Limit
your
movement.
Movement
can
cause
static
electricity
to
build
up
around
you.
v
Handle
the
device
carefully,
holding
it
by
its
edges
or
its
frame.
v
Do
not
touch
solder
joints,
pins,
or
exposed
circuitry.
v
Do
not
leave
the
device
where
others
can
handle
and
damage
it.
v
While
the
device
is
still
in
its
static-protective
package,
touch
it
to
an
unpainted
metal
part
of
the
BladeCenter
unit
or
any
unpainted
metal
surface
on
any
other
grounded
rack
component
in
the
rack
in
which
you
are
installing
the
device
for
at
least
2
seconds.
This
drains
static
electricity
from
the
package
and
from
your
body.
v
Remove
the
device
from
its
package
and
install
it
directly
into
the
blade
server
without
setting
it
down.
If
it
is
necessary
to
set
down
the
device,
put
it
back
into
its
static-protective
package.
Do
not
place
the
device
on
the
blade
server
cover
or
on
a
metal
surface.
v
Take
additional
care
when
you
handle
devices
during
cold
weather.
Heating
reduces
indoor
humidity
and
increases
static
electricity.
18
BladeCenter
LS21
Type
7971
and
LS41
Type
7972:
Installation
and
User’s
Guide
Содержание LS21 - BladeCenter - 7971
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Страница 84: ...Part Number 42C4897 Printed in USA 1P P N 42C4897...
