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9
C
OOLING
S
YSTEM
4.1
T
WO
C
OOL
™
F
ANS
Rear TwoCool™ Fan
– There is
a
120
x
25mm
Two-Cool™
fan
preinstalled
at
the
rear
of
the
case.
The
fan
is
installed
so
the
air
will
be
blown
out
of
the
case. This
fan
comes
with
a
two-speed
switch
that
let
you
choose
the
speed
best
suited
to
your
need. The
default
fan
speed
setting
is
Low.
120mm TwoCool™ Specifications
Size: 120 x 25mm TwoCool™ fan
Rated Voltage: 12V
Operating Voltage:
10.8V ~ 13.2 V
Speed
(RPM)
Input
Current
Air Flow
Static
Pressure
Acoustic
Noise
Input
Power
High
1500
0.30A
(Max.)
1.434 m³ / min
(51.2 CFM)
1.212mm-H
2
O
(0.047 inch-H
2
O)
27.9 dBA 3.6W
Low
900
0.18A
0.0843 m³ / min
(30.1 CFM)
0.486mm-H2O
(0.02 inch-H2O)
16.9 dBA 2.16W
Note
: The
minimum
voltage
to
start
a
typical
TwoCool™
fan
is
5V.
We recommend
that
you
set
the
fan
speed
to
High
if
you
choose
to
connect
the
fan(s)
to
a
fan
control
device
or
to
the
Fan-Only
connector
found
on some
Antec
power
supplies.
A
fan
control
device regulates
the
fan
speed
by
varying
the
voltage,
which
may
start
as
low
as
4.5V
to
5V.
Connecting
a
Two-Cool™
fan
set
on
Medium
or
Low
to
a
fan-control
device
may
result
in
the
fan
not
being
able
to
start
because
the
already
lowered
voltage
from
the
fan
control
device
will
be
further
reduced
by
the
TwoCool™
circuitry
below
5V
4.2
THERMALLY
A
DVANTAGED
C
HASSIS DESIGN GUIDE
(TAC
2.0)
This chassis uses a thermal air guide that conforms to the Intel Thermally Advantaged Chassis design
guide. This guide is designed to provide ventilation directly to the CPU and graphics card through the
integrated air duct located on the side panel.