Skip to: |

Newegg.com - A great place to buy computers, computer parts, electronics, software, accessories, and DVDs online. With great prices, fast shipping, and top-rated customer service - once you know, you Newegg.

If you are reading this message, Please click this link to reload this page.(Do not use your browser's "Refresh" button). Please email us if you're running the latest version of your browser and you still see this message.

Newegg.com - Computer Parts, Laptops, Electronics, HDTVs, Digital Cameras and More!

  • Wish List
  • Feedback
  • Help
Search all
Search
Home
Home > 
Computer Hardware > 
Fans & PC Cooling > 
Water / Liquid Cooling > 
Cooler Master > 
Item#: N82E16835103181

Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

  • 600~2400 RPM (PWM) +/- 10% 19.17 ~ 86.15 CFM +/- 10%
  • Radiator Dim. 273 x 120 x 27 mm (10.7 x 4.7 x 1.1 inch)
  • Fan Dim. 120 x 120 x 25 mm (4.7 x 4.7 x 1 in)
  • Fan Noise 19 ~ 40 dBA
IronEgg
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
  • Email this page
ICON Loading...

Learn more about the Cooler Master RL-S24M-24PK-R1

Quick Info

Warranty

  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years


Customer Reviews of the Cooler Master RL-S24M-24PK-R1

Do you own this product? Write a Review

ICON Loading...

Filter Results

Go

Showing 190 of 190 reviews - Clear Filters

  • KALEB D.
  • 1/23/2015 5:22:26 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

3 out of 5 eggsWell, it works.

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: Keeps A10-7850k OC'd to 4.7 at 34C idle. Tiny blue light on block. Very quiet unless you ramp up the fans. Lots of parts in the box for nearly any setup.... except mine.

Cons: Even though it says it is a double 120mm rad IT WILL NOT FIT IN A STRICT 120MM SETTING. there are metal bits that hang off the top and bottom of the rad making it stupid hard to find a spot to mount. I had to rig it in the front of my case where drives normally go just so it would fit. Replacing the coolant voids the warranty, if I didn't think I might need the warranty I might switch the coolant to mineral oil. Hoses are a bit short and not flexible enough.

Other Thoughts: RMA'd the first one a week after installation due to what sounded like a tiny train in my case. I was a fool, should've upgraded my case to a train case. Anyways RMA was easy got the new one have had it for nearly 5 months and no issues. Threw a liquid metal pad on it and that helped thermals a bit.

Did you find this review helpful? Yes No

  • Anonymous
  • 1/20/2015 9:06:41 PM
  • Tech Level: Average
  • Ownership: less than 1 day
  • Verified Owner

3 out of 5 eggs

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: Kept my i5 4690K at 4.5Ghz @ 1.350 Volts a steady 18-22° C cooler than my Hyper 212 Evo. Very good radiator and pump after 2 days of use.

Cons: 1 of the fans was grinding loudly and the other squeals loudly. It's not worth it to disassemble the whole thing and mail it back for 2 $3 fans.

Other Thoughts: Fits well front mounted in a NZXT H440. Fairly easy installation.
I am only rating 3 stars for the fans not working.

Did you find this review helpful? Yes No

  • Brandon G.
  • 1/14/2015 10:20:38 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsCooler

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: I have been using this with an FX 8350 Black Edition 8 core. The Temperature holds at 35 C in a push configuration under load. It has been a great cooler. Been using mine since August of last year. I have not overclocked this one.

Cons: I have no bad things about this setup

Did you find this review helpful? Yes No

  • Jacob T.
  • 12/31/2014 5:50:18 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsLowered my temps

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: Significantly lower temps than my air cooler or H60. Lots of screws for different pump configurations.

Cons: Pump noise. It's not super loud but I'm into a quiet PC. Sometimes it's louder than others, I have no clue why. I have the pump set at 1,000 rpms and it's decently quiet. Same with the fans, need to run them at a low speed to keep the sound low.

Other Thoughts: I have them on the top of the case on the floor so I can hear it more than most. (Fractal R4) Once in awhile it makes a slurping noise, especially when changing pump rpms around.

Did you find this review helpful? Yes No

  • Carl M.
  • 12/30/2014 4:39:37 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

2 out of 5 eggsWas fine for first 4 months

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: Loved this right out of the box. I'm using it with a 220W TDP processor (FX9590), and it worked well for a while.

Cons: One of the fans just died, about 4 months later. I sincerely would like to say that this is a good product, but given the short life of the fan, I cannot.

Other Thoughts: You should get something else. If you do get this, buy two extra fans from another manufacturer and run it in push pull with the pull set on molex 12v - at least that way you have a fail-safe and can be confident that your hardware is safe.

Manufacturer Response:

Hello Carl,

We apologize for the trouble that you are experiencing with the Seidon 240m. The Seidon 240m does have a 2 year warranty.

Please contact us so that we can ship you a replacement fan.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • michael s.
  • 12/26/2014 12:58:37 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsChilly cooler

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: I'm running this on an 8 core AMD FX processor can't get it even remotely hot. I ran a stress even after an hour the highest the temps got too were 52c. The fans are very quiet and used in conjunction with ASUS fan control you can't even hear it running. not much to the install and if you've ever messed with liquid cooling in the past this is by far a breeze.

Cons: Although this is not my first liquid cooler install if you are not comfortable with building computers I would not recommend this product. The Screws that attach to the plate on the back of the mother board are spring loaded and are very stiff, I could see someone with minimal knowledge slipping with a screw driver or over tightening.

Did you find this review helpful? Yes No

  • Sarah N.
  • 12/14/2014 5:40:00 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGood Cooler

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: Keeps my Overclocked Intel 4670K @ 4.6ghz while playing WOW(which is cpu heavy) at max graphics with an R9 280 @ 45oC. Idle at 25oC. fans speeds i keep around 30% unless its gaming which its around 45-55%

Cons: There is a FILL Valve which is facing the pump on the radiator. I cant place it face down with pump going down in my case AT the top of the case unless i place it below the 200mm fan because of it. I can place it the other way but the way the tubes bend is a way i dont feel comfortable with.
MY case is a thermaltake v Core 71( massive case with lots of cooling options)

Other Thoughts: Had a Coolermaster hyper 212 evo with 2 JETFLO led blue fans(95CFM EACH) which kept it at 65oC while gaming and 35-40oC at idle. Very happy with it as well. it was on sale for $94 plus a $25 mail in rebate.
Other than the little issue with the fill valve, which im pretty sure is just the same with all the other AIO Liquid Coolers, is very minor. Actual product has a quality feel to it. I really like the BLUE led on the pump., goes with my Black and Blue theme.

Did you find this review helpful? Yes No

  • Yang Q.
  • 12/14/2014 8:35:53 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

1 out of 5 eggsloud, don't buy

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: my case , fans,all use cooler master. but ,this one only 2 weeks, 2 fans make loud music.

Cons: none

Manufacturer Response:

Hello Yang Q,

We apologize for the trouble that you are experiencing with the Seidon 240m. Please contact us for further trouble shooting.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

0 out of 1 people found this review helpful. Did you? Yes No

  • Alexander P.
  • 12/10/2014 4:05:58 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggsPump Not Working Fan makes Noise

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: .

Cons: I purchased the coolermaster seidon 240mm water cooler two days ago and got it in the mail today, after installing and over 4 hours of figuring out on how to install it the pump does NOT work and one of the fans makes a very odd and loud buzzing noise. I own a maximus vi formula motherboard along with an i7 4770k processor. Everytime i started up my computer with this cooler my computer said there was a cpu fan error.It had also said my cpu was overheating and i was getting temps above 75c IDLE. I applied thermal paste and also tried plugging the fan and pump into many different inputs.
Is there something wrong with my model or am i not doing something right??????

Manufacturer Response:

Hello Alexander P,

We apologize for the trouble that you are experiencing with the Seidon 240m. The Seidon 240m does come with a 2 year warranty.

Please contact us so that we can get you a replacement.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • Peter P.
  • 12/8/2014 7:34:17 AM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsEasy Install

This review is from: Cooler Master Seidon 240M – All-In-One CPU Liquid Water Cooling System with 240mm Radiator and 2 Fans

Pros: Assured fit with the Coolermaster HAF XM tower for my new build. Bolted right up no problem and attaching the giant copper heat plate to my MB was a breeze. My first watercooled rig.

Small socket provided to assist in attachment of the Cooler standoffs.

Prefilled

Price was right with a rebate compared to the higher end air coolers I looked over.

Cons: I'll always worry about the possibility of a leak.

In some circumstances you might want a cooler where you can route lines thru a case and have to fill it with coolant later. This cooler being fully assembled means you don't have a whole lot of play in positioning.

Other Thoughts: my i5 is always running too hot since it's oc'd to the danger zone most of the time. This cooler could absorb anything I tossed at it and CPU temp rarely hit 50. Easier to clean then a straight CPU cooler as the radiator is accessible from the top panel of the case. Nice setup.

I have cats and fur has always been a problem, it seems to get in everything. The air cooler for my i5 needs monthly dust off treatments. We'll see how much ends up in the radiator.

1 out of 1 people found this review helpful. Did you? Yes No

ICON Loading...
Are you an E-Blast Insider? Subscribe Newegg e-Blast
PayPal
Shop without retyping payment details. Secure shopping made faster.
Check out with PayPal.

Home
Home > 
Computer Hardware > 
Fans & PC Cooling > 
Water / Liquid Cooling > 
Cooler Master > 
Item#: N82E16835103181
Related Products
1600 RPM 60.2 CFM Fan Noise 20.5 dB(A) ...
600~2400 RPM (PWM) +/ 10% 19.17 ~ 86.15 ...
Dual 120mm Silencio Fans (High Air Pressure, Low ...
Shop by Region: United States | Canada | China | Taiwan
VeriSign Click for the BBB Business Review of this Computers - Supplies & Parts in Whittier CAThis site protected by Trustwave's Trusted Commerce program Inc500
Policy & Agreement | Privacy Policy  © 2000-2015 Newegg Inc.  All rights reserved.
If the Adobe Reader does not appear when you click on a link for a PDF file, you can download Adobe Reader from the Adobe web site.