Koolance EXT-440CU-R - Manual (Page 9)

10 11 User Manual
ATX Pass-Through Lead
The ATX pass-through lead is
responsible for sending the shut-
down signal if any sensor reaches
3ºC (5ºF) above the preset alarm
temperature (See LED Display for
configuration).
There is no polarity involved with
the ATX lead. Connect the male
ATX power lead from the Slot
Adapter to your computer’s main
chassis power button.
Connect the female ATX power lead from
the Slot Adapter to the motherboard’s
power switch connection (often marked
“PWRSW”, “PWSW”, or “PWBT”).
This is the connection that would normally
receive the chassis power button
directly.
CAUTION :
The auto shutdown safety feature of your cooling system will
not function properly without connecting the ATX pass-through lead.
!
Power Connection
The cooling system requires 12V DC up to approximately 20W. Since it’s adapted
internally, it does not use a separate AC outlet when powered by a computer. (See
AC power option later.)
Connect the Slot Adapter’s main power plug to a computer power supply 4-pin
Molex plug. Without this important connection, the unit will NOT operate.
CAUTION :
The Power Connection is vital to system operation. A 12V
4-pin plug from the power supply must remain connected to the cooling
system at all times while the computer is in use. !
Installation
To Motherboard
Chassis Power
Button From Slot
Adapter