Motherboard dont have OPT_fan or PUMP_fan for Watercooling

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mazboy

mazboy

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Dec 28, 2017
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I'm guessing you're going to have to get a molex to fan adaptor (https://www.newegg.com/Product/Product.aspx?Item=N82E16812423171&cm_re=molex_to_3_pin_fan_adapter-_-12-423-171-_-Product) or maybe go pro and install a fan junction box (https://www.newegg.com/Product/Product.aspx?Item=N82E16882422018&cm_re=molex_to_3_pin_fan_adapter-_-82-422-018-_-Product)
 
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Darkbreeze

Darkbreeze

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Jun 24, 2014
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None of those answers are actually accurate, especially since there are so many differences between models, brands and older/newer units. Without knowing the exact model of the cooler, and even potentially the REVISION of that cooler, these are all just guesses and guesses tend to end up badly in some cases. Likely they COULD be accurate, but guessing without having all the facts is a bad way, or a good way, for something bad to happen.
 
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The Paladin

The Paladin

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Oct 5, 2016
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actually my answer was based on the manual located at
http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/STRIX_B250G_GAMING/E12467_STRIX_B250G_GAMING_UM_WEB.pdf?_ga=2.196285164.1199498205.1516875810-1793528967.1507551773

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Darkbreeze

Darkbreeze

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The motherboard manual doesn't tell you ANYTHING in regard to where or how the COOLER itself was intended to be configured. There could potentially be six different ways for three different coolers to be connected and configured on the exact same motherboard. It's no big, sometimes guesses end up being accurate. A lot of the time in fact. But they are still guesses and guesses always run the risk of being incorrect and being incorrect with computer hardware can mean buying computer hardware twice.

Maybe not in THIS exact scenario, but it's a good idea to get into the habit of not guessing any more than absolutely necessary EVERY time you are dealing with an unknown factor in a configuration. BA's aren't that important that you can't wait to get all the facts if more information is probably a necessity. Maybe I'm just too used to wanting to do things the right way.
 
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The Paladin

The Paladin

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okay I can understand that, but you saying that a cpu fan header should not always be connected to the pump, (which in a n AIO configuration is replacing the cpu fan ?)... that does run contradictory to what I have seen on the industry, (aside the motherboards that has Specific headers for aio_pump for example)

and yes in this example at the bottom of the page it is marked " connect the fan of your water cooling kit to the cpu_fan connector"
which I interpret your pump of the aio.

a little confused...
 
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Darkbreeze

Darkbreeze

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Actually, these days, RARELY does a pump connect to the USB_FAN header. Most of the time the pump connects straight to a SATA power connector or other full time power source as it runs all the time and the fans on the radiator either connect directly via splitter to the CPU_FAN header, are daisy chained from one fan to the other with one of them connected to the CPU_FAN header or are connected to a hub that is connected to the CPU_FAN header. At least most of the ones I've installed or helped configure in threads hear.

I'm definitely no authority on liquid cooling though. So my opinion isn't gospel on this topic by any means, but even so it STILL always makes more sense than the alternative to know the specific hardware and configure connections and settings based on what the specific instructions for that piece of hardware tells you to do if ONLY because there may be one out of ten that does something different. Just my 2cents though.
 
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