Antec VSK2450 - Manual (Page 11)

10
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.