ekwb EK-Nucleus AIO CR240 Dark Manuel D'installation page 11

Avoid vertical placement of the radiator
with tubing on the top. (When the radiator
reservoir is lower than the pump unit).
Avoid radiator at the bottom.
STEP 8: PUMP – CONNECTING
CABLES (AMD)
4-pin
PWM
STEP A:
Plug the 4-pin PWM connector from the pump
to the motherboard.
Female Connector
Male Connector
Fan Connector
Female Connector
Fan Connector
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STEP 9: FANS – CONNECTING
CABLES (AMD)
STEP A:
Connect the 4-pin FAN connector from the
extension cable directly to the CPU fan header
on the motherboard. Always use a CPU fan
header when possible.