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cooler master seidon 120m very loud

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November 6, 2013 10:16:18 AM

Does anyone else have a cooler master seidon 120m? The fan on mine is very loud, it almost sounds like an industrial fan. Does anyone know if the radiator and pump make this noise or will buying a different fan for the radiator fix this noise issue. It has always been very loud but I am getting fed up. Thanks
November 6, 2013 10:27:29 AM

depends on your fan profile and how you have you hooked up to your motherboard and your fan settings. I have the 240 and when i first installed it, it was loud until I changed my fan settings.

The pump should be plugged into the CPU fan socket on the motherboard. In the bio, the cpu fan speed setting should be set to disabled so it gets full power all the time. You don't need the pump ramping up or down based on temp.

The fans for the cooler ,should be on a motherboard fan header. That should be set to automatic control and then if your bios allows, set to a standard or quiet profile. turbo/off, etc will be loud. What motherboard, be easier to see what your bios supports.

Also, what are your temps like, important part to see if it's ramping up to that speed because of bad themal contact, or just the fans running on full because of fan management settings.
November 6, 2013 10:31:03 AM

Its all hooked up properly. It used to be really loud until I activated the fan settings in the bios. If its running at 100% all the time you can hear it all throughout my apartment. Its the only sound I can pick out on my computer. So its the pump itself making the "whur-ing sound and not the fan?
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November 6, 2013 10:35:04 AM

Hi hysteria357,

Do you know what RPM the fan is running at? Was the fan this loud when you installed the cooler or did it get louder over time?



November 6, 2013 10:40:46 AM

Hi Patrick, quick question since you posted on the thread. For the pump, is it best to run it at full fan speed all the time, ie, so it gets 12v? Is it fine to use a 12v molex to 3pin fan converter for the pump and free up a motherboard fan connector that could be used for my fans instead of using splitters?

The manual doesn't specify how to properly hookup the fan or what settings to use. That was the only problem I have with my 240, is how to set it up the best.
November 6, 2013 10:42:59 AM

The cooler hasn't gotten louder over time, its just loud in general. Its not a clicking or chugging sound which is typical of failing pumps, more like an industrial fan. I was wondering if it was the pump or radiator making the noise or if it is the cooling fan attached to the radiator. Temperature levels are fine, the cooling system has worked well for a year.
November 6, 2013 10:44:56 AM

well try to unplug the fan or stop it and see if it's the fan or the pump.
November 6, 2013 10:52:22 AM

Ok ill give that a try
November 6, 2013 10:54:30 AM

Hi Hysteria357,

Have you tried decreasing the fan RPM to see if the noise level decreases? I just want to make sure that the pump is not causing the noise.





November 6, 2013 11:03:42 AM

getochkn said:
Hi Patrick, quick question since you posted on the thread. For the pump, is it best to run it at full fan speed all the time, ie, so it gets 12v? Is it fine to use a 12v molex to 3pin fan converter for the pump and free up a motherboard fan connector that could be used for my fans instead of using splitters?

The manual doesn't specify how to properly hookup the fan or what settings to use. That was the only problem I have with my 240, is how to set it up the best.


Hello getochkn,

I would suggest always running the pump at 12v because if you decrease the pumps voltage, then you will also decrease you cooling efficiency.

You are able to hook up the pump both ways, either to the motherboard 3 pin fan header or by using a 3-pin fan to molex adapter. You will not be able to monitor the pumps RPM though, if the pump is connected to the power supply.

The fan splitter is good to use because it will allow you to control the RPM of both fans at the same time. If you have two 4 pin headers on your motherboard with one fan connected to each, then you will have to control each fan independently in bios.

Either way will work so its up to you.


November 6, 2013 11:08:43 AM

Thank you Patrick. That's what I thought. Just a tip, you should include that on your website, or in the manual as many people may not be running their systems right if they are using a pin-header set to quiet mode and it's not giving a full 12v.


now back to the regularly scheduled thread, and sorry for hijacking, just one of those things I haven't been able to find an answer to online, and having a CM rep here, I figured I would ask.
November 6, 2013 11:13:16 AM

Hi getochkn,

Yes, we are working on creating better manuals to help our customers. Thank you for the feed back and please let me know if you have any more questions.
November 6, 2013 11:28:54 AM

Thanks for your help everyone. I am away from my computer now as soon as I get back I will give you an update.

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November 6, 2013 11:36:35 AM
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hysteria357 said:
Thanks for your help everyone. I am away from my computer now as soon as I get back I will give you an update.


What motherboard do you have? My asus comes with FanXpert which lets you not only monitor the fan speeds and temps, but adjust them in windows, so you can turn down the cpu fan header or the motherboard header, one at a time, and see which one seems to be making it go loud.
November 6, 2013 11:39:46 AM

Its an asus p8Z77 V LX.
November 6, 2013 3:05:18 PM

Hi guys, I verified it was the fan making the loud noises and some clicking sounds. Can I just replace it with any 120mm fan?
November 6, 2013 3:08:07 PM

Hello Hysteria357,

Are you located in the US or Canada?
November 6, 2013 3:22:06 PM

United States
November 6, 2013 3:32:52 PM

Alright thanks for your help
November 6, 2013 3:34:00 PM

You're welcome. Please let me know if you have any more questions.

November 6, 2013 4:01:44 PM

Actually, just an update. I installed Asus' fan xpert utility for my motherboard and that fixed the fan speed issues. Now it is so much quieter under lower loads. I want to thank everybody for helping me with this issue
March 22, 2014 4:41:32 PM

BTW: for anyone seaching for and reading this thread. I had the same *symptoms* with a computer I just had built from cyberpowerpc, my cooler is the 240mm version and so by looking at the reviews, I thought there was nothing I could do against the loud noise. I also endlessly tried to configure the CPU_FAN in the bios and/or the AI Suite II, with no avail.

Searching threads also revealed to my that my motherboard (Asus Rampage Extreme IV) could not adjust the CPU fan. I thought I was out of options...

The problem, and thus the solution, was that my pump's power was connected to the CPU_FAN and the radiator fans were connected to a Y-splitter. I fixed the problem by putting the radiator fans each individually on CPU_FAN 1 and CPU_FAN 2 and then the pump on OPT_FAN
March 23, 2014 7:15:25 AM

geogerf said:
BTW: for anyone seaching for and reading this thread. I had the same *symptoms* with a computer I just had built from cyberpowerpc, my cooler is the 240mm version and so by looking at the reviews, I thought there was nothing I could do against the loud noise. I also endlessly tried to configure the CPU_FAN in the bios and/or the AI Suite II, with no avail.

Searching threads also revealed to my that my motherboard (Asus Rampage Extreme IV) could not adjust the CPU fan. I thought I was out of options...

The problem, and thus the solution, was that my pump's power was connected to the CPU_FAN and the radiator fans were connected to a Y-splitter. I fixed the problem by putting the radiator fans each individually on CPU_FAN 1 and CPU_FAN 2 and then the pump on OPT_FAN


My solution actually kinda stopped working. I actually just bought a corsair sp120 quiet edition and left it on full blast all the time. Keeps it the same level of cool as the stock fan, because it would never ramp up to full speed. I hate to cheat on cooler master, but the sp120 preformed better, was quieter, and looked nicer than the cooler master 120mm fans. :( 
March 30, 2014 9:27:18 AM

I had the same problem, but another cause.
I made sure it was the pump (the tubes "turned" of at the same time), but while digging around in my rig, i noticed that the tubes were touching each other.

Solution
I simply put a rubber band around it.

I hope this helps people googling this ^^
!