Koolance EX2-755-R - Manual (Page 10)

12 13 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.
!
To Motherboard
Chassis Power
Button From Slot
Adapter
Installation
AC Power Option
To power the cooling unit with 100-
240VAC, 50-60Hz, an optional
power inverter is available from
Koolance. This connects to the
cooling system’s rear 9-pin plug.
Temperature sensors and the ATX
shut-down lead are connected
directly to this adapter.
Temperature Sensor Placement
Three surface temperature sensors are
included with this product for monitoring.
Generally, sensors are affixed to water
blocks with metal tape. (Liquid temperature
sensors are also available optionally from
Koolance.)
Sensors should never be placed directly
between a heat source and its water block.
This will interfere with contact and can
damage the sensor or heat source.
Chip contact
area
(keep out)
Relay Jumper
This jumper changes how the ATX wire
presents the safety shutdown signal.
For computer use, leave the jumper on
“NO” (Normally Open).
If this unit’s relay feature (see: “Alarm
and Shutdown Settings”) will be used
for an application requiring a Normally
Closed circuit, move the jumper to
“NC”.