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Cooler Master > 
Item#: N82E16835103195

Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

  • 600~2400 RPM (PWM) +/- 10% 19.17 ~ 86.15 CFM +/- 10%
  • Fan Dim. 120 x 120 x 25 mm (4.7" x 4.7" x 1")
  • Fan Noise 19 ~ 40 dBA
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.
IronEgg
BUY WITH CONFIDENCE
This product qualifies for the Iron Egg guarantee. We'll match any qualifying competitor's price.
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Learn more about the Cooler Master RL-S12V-24PK-R1

General

Brand
COOLER MASTER
Series
Seidon 120V
Model
RL-S12V-24PK-R1
Type
Liquid Cooling System

Block

Block Compatibility
Intel LGA: 2011 / 1366 / 1150 /1155 / 1156 / 775
AMD Socket: FM2 / FM1 / AM3+ / AM3 / AM2

Pump

Pump Noise
<23 dBA

Radiator

Radiator Material
Aluminum

Fan

Fan Dim.
120 x 120 x 25 mm (4.7" x 4.7" x 1")
Fan RPM
600~2400 RPM (PWM) +/- 10%
Fan Air Flow
19.17 ~ 86.15 CFM +/- 10%
Fan Noise
19 ~ 40 dBA
Fan Connector
4 Pin

Features

Features
Factory filled with coolant, then sealed and pressure tested - zero maintenance for years.

Optimized pump and water block provide excellent water flow and system performance.

Special designed 120mm radiator provides superior heat dissipation performance and fits in most cases internally and externally.

120mm PWM fan with a wide RPM range to fine tune and balance fan noise and performance.

Blue LED indicator lights up when operating.

Quick Info

Warranty

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


Customer Reviews of the Cooler Master RL-S12V-24PK-R1

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Showing 188 of 188 reviews - Clear Filters

  • Jarred V.
  • 10/23/2014 5:49:45 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggs

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: Easy installation, Relatively cheap, Great Product, Very Efficient.

Cons: None worth noting.

Other Thoughts: This water cooler dropped my temps by 20 degrees! Well worth the price and only took about 10 minutes to install.

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

  • Brian H.
  • 10/22/2014 12:00:17 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

3 out of 5 eggsCooler Master Seidon 120V

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: First of all the price, especially on sale, is unbeatable. Secondly the amount of hardware it comes with, even a little thing of low-end thermal paste. Thirdly the shipping, I received mine with in two days I believe. It seems to be keeping my CPU nice and cold.

Cons: The cons for me were the installation process, the back plate was a nightmare and a very janky set up. The fan included ramped up the volume of my PC, it drowns out the top 140mm and the front 120mm by far. The cooling block LED defiantly does not look like the pictures, there's much more transparency.

Other Thoughts: Perhaps with a different, higher quality, fan attached to the radiator it would be quieter. That really in the kicker to my 3 star review, I bought a liquid loop for the noise reduction. If you're on a budget this will get the job done...I however would just say, "save up a little more money and go with a corsair h series, I've had one in the past and was much happier with it."

Manufacturer Response:

Hello Brian,

We apologize for the trouble that you are experiencing with the Seidon 120V. Please contact us for further trouble shooting.

Phone: 888-624-5099

CM Fanzone:
https://account.coolermaster.com/LogOn.aspx

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • Russell B.
  • 10/21/2014 9:59:43 AM
  • Tech Level: Average
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsNice cooler

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: Price: for about the same price of a nice air cooler.
This kept my older AMD x4 overclocked from 3.1 GHz to 3.8 GHz at 24c idle and 37c running prime for an hour. Pretty quite too, the stock cooler got pretty loud even running stock speeds but this thing was silent running stock and only got a little louder when OC'd.

Cons: Make sure you have the room in your case. I have a mid tower and it barely fit after a few modifications.

Did you find this review helpful? Yes No

  • Shawn N.
  • 10/20/2014 1:12:52 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsGreat Cooler

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: Inexpensive
Easy to Install
Keeps my CPU around 30C

Cons: The plasic clips to hold the standoff are easily broken

Other Thoughts: This cooler is on par with any other brand of Closed Loop Coolers. I got mine for $25 dollars with promo and MIB. No brainer

Did you find this review helpful? Yes No

  • Nicholas B.
  • 10/19/2014 9:21:44 AM
  • Tech Level: Average
  • Ownership: 1 month to 1 year

3 out of 5 eggsPump noise??

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: It does its job well keeping the cpu cool, temps stayed below 50 most of the time.

Cons: I've had issues with the pump being loud ever since I installed it, used to be just on startup. Now it's a constant whirring grinding sound that I can not get to stop. I've been told the pump has to be plugged into a fan connector that's not being controlled so it runs at full power, but the higher the rpm it runs at the louder it gets and it actually sounded better when being controlled as the noise only started when the cpu was under load. Now over time it's become a constant noise that I can't stop no matter what I do. It's still techinically cooling the cpu but I refuse to use something so loud and obnoxious.

Other Thoughts: Only got it because it came with the CM 690 III case. Idk if it's under warranty or not.

Manufacturer Response:

Hello Nicholas,

We apologize for the trouble that you are experiencing with the Seidon 120v. The Seidon 120v 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

  • Anonymous
  • 10/15/2014 7:50:43 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsPUMP FAILED!!

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: none....it cooled my overclocked fx8350 well when it worked.

Cons: After 45 days of use the pump has failed but the blue light is still on indicating its getting power. temps jumped crazy high

Other Thoughts: Installed my spare air cooler to get me by until I can get a better water cooler.

Manufacturer Response:

Hello William E,

We apologize for the trouble that you are experiencing with the Seidon 120v. The Seidon 120v does come with a 2 year warranty.

Please contact us so we can get you a replacement.

Phone: 888-624-5099

Respectfully,
Patrick
CMUSA Support

Did you find this review helpful? Yes No

  • Kevin P.
  • 10/11/2014 11:08:54 AM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsGreat Cheap Cooler

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: Great all-in-one cooler. I had to use the thermal grease that came with it because I couldn't find my arctic silver. Keeps my Phenom II X4 945 at 13-14c idle(ish, Spotify, Skype, HWMonitor, Steam, Google Chrome)
I wonder what it could get it to with arctic silver.

(P.S.: It's not overclocked)

Cons: The fan and radiator were easy to install, but the pump was kind of irritating, and I had to get someone else's help with installing it. The thermal grease they give you is very runny at first, I forgot to squeeze out the watery bit, and it ended up drooling on my north bridge a bit. Though, it's still a good cooler.

Oh, and a few of the fins were bent on the radiator, but they weren't exactly crushed, so I don't care too much about that.

Though I won't dock an egg for it.

Other Thoughts: I put the CPU in a MSI 970 GAMING board in a Corsair 230T Orange case.

Did you find this review helpful? Yes No

  • Andrew E.
  • 10/10/2014 11:52:13 PM
  • Tech Level: Somewhat High
  • Ownership: 1 day to 1 week
  • Verified Owner

5 out of 5 eggsCooler Master Seidon 120V

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: This cooler has been great so far. It has dropped my CPU temperature enough to allow me a little bit more overclocking head room. For the price I paid after rebate this cooler was a steal.

Cons: Fan could be quieter, but for an entry level water cooling solution its hard to beat.

Other Thoughts: I finally decided to give water cooling a try, and I'm glad I did. The cooler installed easily on my older 1366 motherboard with I7 940 CPU. Dropped my previous full load temperatures by about 20C.

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

  • Maurice M.
  • 10/9/2014 9:09:30 PM
  • Tech Level: High
  • Ownership: 1 day to 1 week
  • Verified Owner

1 out of 5 eggspump failed!?

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: none

Cons: After 1 day of use CPU temperatures on my i3-4150 are at 100 Celsius! Well outside of the operating range of the cpu. This is scary. Returning asap.

Manufacturer Response:

Hello Maurice M,

We apologize for the trouble that you are experiencing with the Seidon 120v. The Seidon 120v does come with a 2 year warrant.

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

  • Martin T.
  • 10/9/2014 10:15:12 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsSatisfaction

This review is from: Cooler Master Seidon 120V – Compact All-In-One CPU Liquid Water Cooling System with 120mm Radiator and Fan

Pros: Très facile d'installation avec le bon type de boitier, prends peu d'espace, très silencieux et maintient le processeur à une température très optimale.

Cons: Il faut faire attention à avoir un boitier permettant d'accepter le ventilateur qui est toutefois assez gros, par contre n'importe qui bricolant un peu, peut arranger le compartiment du boitier.

Did you find this review helpful? Yes No

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