Removing and installing blower modules, Removing, Installing – IBM BladeCenter T Type 8720 User Manual
Page 64: Blower, Modules
Removing
and
installing
blower
modules
The
BladeCenter
T
unit
comes
with
four
hot-swap
blowers
for
cooling
redundancy.
The
blowers
are
installed
at
the
rear
of
the
system.
The
blower
speeds
vary
depending
on
the
ambient
air
temperature
at
the
front
of
the
BladeCenter
T
unit.
If
a
blower
fails,
the
remaining
blowers
increase
their
speed
to
cool
the
BladeCenter
T
unit
and
blade
servers.
All
flour
blowers
are
required
for
redundant
system
operation.
Power
for
all
four
blowers
is
shared
by
all
installed
power
modules.
One
failed
blower
creates
a
nonredundant
configuration.
Note:
Each
power
module
has
cooling
fans
that
are
independent
from
the
system
cooling.
Blower
Error LED
Power LED
Important:
Replace
a
failed
blower
as
soon
as
possible
to
restore
cooling
redundancy.
Use
the
instructions
in
this
section
to
remove
or
install
a
blower
module
at
the
rear
of
the
BladeCenter
T
unit.
Note:
Blowers
on
the
left
side
of
the
system
are
installed
with
the
release
lever
pointing
upward,
and
blowers
on
the
right
side
are
installed
with
the
release
lever
facing
downward.
54
BladeCenter
T
Type
8720
and
8730:
Hardware
Maintenance
Manual
and
Troubleshooting
Guide