Question Artic Liquid Freezer II 240 (non-argb) ?

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kurdtnz

kurdtnz

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Feb 24, 2020
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I'll soon be building my new pc and this is the first time Ive used an aio cooler. My motherboard, (asus rog strix b650e-f,) has two headers, cpu fan header and aio pump next to each other, which should I use?
 
Cyberat_88 said:
I used the CPU because it's controllable in Bios. Those are settings for those modular liquid coolers that have 2 separate headers and can activate pump & fans independent from each other. CPU idle drops to 24C.
Make sure to set your fans in Bios.
Click to expand...
Old school, although the report on dead pump on it is basically just going to be back to old physical check of touching or hearing the pump to see if its vibrating or gurgling respectively.

I would still do AIO_PUMP header for the block and the fans on the radiator with CPU_FAN, but if you cant set the AIO_PUMP speed to 100% as it should be, then yeah go for this.
 
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That system has only ONE cable from the pump to a mobo header, and NO separate cable from the rad fans. You are to connect it to the CPU_FAN header. Internally, the Arctic system ensures that the PUMP gets constant power to run at full speed as intended, and the rad FANS have their speed controlled automatically according to the temperature sensor inside the CPU chip.

The CPU_FAN header must use the new 4-pin PWM Mode to control that system. Just to be sure, once you have it running go into BIOS Setup to the screen where you can set options for the CPU_FAN header. Look for any option to set the MODE: it should contain choices like PWM, Voltage (or DC), and Automatic. Set it to PWM to be sure it stays that way. Back out to Main Menu, then use F10 to get to the Exit Menu. There choose SAVE and EXIT to save your setting and reboot.
 
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On those coolers Pump doesn't report RPM nor it is controlable. it always runs at full speed no matter where it is connected. It's fine to leave it connected together with radiator fans to CPU_FAN header.
Most AIO coolers have limited pump so it's best to let them run 100% all the time. That doesn't reflect on their life time.
 
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from my experience with arctic freezer ii of which ive got the 360mm 420mm and used a 280mm ..
yes you can use the aio header for the pump and cpu header for fans ..
BUT
mostly useless more so on itx boards with limited fan headers i usually plug the one plug directly into the aio pump header or the cpu fan header and max speed it the P series fans are in general really quiet anyway !!
 
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kerberos_20 said:
at 3:10 he mentions" with this one, the new unit, i only have fan speed, i dont have pump speed, it just reads zero, even tho its definitely moving"
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That video I found after getting my first 240 from Arctic and couldn't get speed from the pump no mater where I connected it to. Same is happening with my other 240 in other PC. also first and now second (v7) 360. My earlier, Cooler master AIOs had adjustable pumps so I was curious about Arctic.
As far as MB headers are concerned. Typically AIO_Pump headers are not adjustable but pumps are detectable.
W_Pump headers are adjustable and also can give higher current as they are meant for custom coolers.
 
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CountMike said:
That video I found after getting my first 240 from Arctic and couldn't get speed from the pump no mater where I connected it to. Same is happening with my other 240 in other PC. also first and now second (v7) 360. My earlier, Cooler master AIOs had adjustable pumps so I was curious about Arctic.
As far as MB headers are concerned. Typically AIO_Pump headers are not adjustable but pumps are detectable.
W_Pump headers are adjustable and also can give higher current as they are meant for custom coolers.
Click to expand...
i have artic ii 280 , it doesnt show pump speed, it shows just vrm fan and adjusting PWM makes runs faste both VRM and FAN speeds and according to artic, pump speed is between 10-45% PWM speed, after 45% is at full power, VRM fan is noisy after 60%, so im not going past that
 
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kerberos_20 said:
i have artic ii 280 , it doesnt show pump speed, it shows just vrm fan and adjusting PWM makes runs faste both VRM and FAN speeds and according to artic, pump speed is between 10-45% PWM speed, after 45% is at full power, VRM fan is noisy after 60%, so im not going past that
Click to expand...
Yes. little fan on the pump body but it's not mechanically connected to pump motor. it's separate.
 
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Many AIO systems have separate cables for their PUMP and the Rad Fans, so you use two different mobo headers for them IF your mobo has them. This Arctic system is NOT designed that way, so you must plug into ONE header, and that needs to be chosen properly.

Many AIO systems design their pump to be used at full speed all the time. This accomplishes ALL control of CPU cooling by the by varying the RAD FAN speeds, and avoids having BOTH fans and pump speed vary so they fight each other for control. The Arctic system takes a midway approach. It allows the PUMP speed to be altered, but NOT frequently according to CPU frequent temperature changes. Pump speed is decided and altered INfrequently by the Arctic system itself, scaling pump speed to keep the range of fan speeds optimized.

An IMPORTANT secondary function of the CPU_FAN header is to monitor the speed of what is plugged in there for NO speed signal which would indicate failure of the CPU cooler. In an AIO system there are two speeds, but from those the more important one to monitor is the PUMP speed. NO pump operation means NO heat removal from the CPU and rapid overheating. No fan operation means a slower CPU temp rise that will be detected and corrected by a different monitoring system. So if you have TWO cables to connect, the PUMP goes to the CPU_FAN header. If you have ONE cable as Arctic's system does, it should go to the CPU_FAN header that does this function, just in case your particular mobo does NOT do that for the AIO_PUMP header. (It SHOULD do it that way, but no mobo manual ever tells you that for sure!) The pump should NEVER be connected to a CHA_FAN or SYS_FAN header that does NOT provide the special cooling system failure protection of the CPU_FAN header.
 
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Paperdoc said:
Many AIO systems have separate cables for their PUMP and the Rad Fans, so you use two different mobo headers for them IF your mobo has them. This Arctic system is NOT designed that way, so you must plug into ONE header, and that needs to be chosen properly.

Many AIO systems design their pump to be used at full speed all the time. This accomplishes ALL control of CPU cooling by the by varying the RAD FAN speeds, and avoids having BOTH fans and pump speed vary so they fight each other for control. The Arctic system takes a midway approach. It allows the PUMP speed to be altered, but NOT frequently according to CPU frequent temperature changes. Pump speed is decided and altered INfrequently by the Arctic system itself, scaling pump speed to keep the range of fan speeds optimized.

An IMPORTANT secondary function of the CPU_FAN header is to monitor the speed of what is plugged in there for NO speed signal which would indicate failure of the CPU cooler. In an AIO system there are two speeds, but from those the more important one to monitor is the PUMP speed. NO pump operation means NO heat removal from the CPU and rapid overheating. No fan operation means a slower CPU temp rise that will be detected and corrected by a different monitoring system. So if you have TWO cables to connect, the PUMP goes to the CPU_FAN header. If you have ONE cable as Arctic's system does, it should go to the CPU_FAN header that does this function, just in case your particular mobo does NOT do that for the AIO_PUMP header. (It SHOULD do it that way, but no mobo manual ever tells you that for sure!) The pump should NEVER be connected to a CHA_FAN or SYS_FAN header that does NOT provide the special cooling system failure protection of the CPU_FAN header.
Click to expand...
All true except on these coolers pump and small fan are daisy chained with radiator fans, could be disconnected and connected in some other header but result is same.
 
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