Hello fellow ROG-ers, recently I have purchased my first AIO, Arctic Liquid Freezer 120 for cooling an I7-4790K on an Asus Z97 Gene VII motherboard (bios 3003).
Arctic recommends to daisy chain the pump->fan1->fan2->motherboard. It does not explain too much to which header it should be plugged in, hence my questions.
The pump is 3 pin and the fans are 4 pin. In this way, Arctic recommended, both fans and the pump
are running at the speed of the fans, ~1400 RPM. Reading through internet I saw mostly that everyone from other AIO builders like Corsair
and also custom loop providers like EK, the pump should be running alone on a header to benefit from
the max speed , for a better liquid flow inside the radiator and to not be affected by the variations of the fans due temperature.
While this seem to make sense, some new z170 motherboards have a special dedicated pump header called w_header, my Gene VII does not have one.
If I run the 2 fans daisy-chained and plugged into cpu_fan they run also at ~1400 RPM while the pump plugged into cpu_opt runs at ~5000 RPM.
Here comes the questions :
1. Is the cpu_opt able to provide 12v, or is any real danger that it can fry the motherboard if used like this for a long time ?
2. As the warranty of the AIO is 2 years can pump itself to die much sooner if is running at 5000 RPM instead of 1400 RPM via recommended method?
Thanks for any input
M.