Home / Component / Cooling / Cooler Master Seidon 120M Liquid Cooler (inc. Dual Fan Performance 2x Noctua NF-F12)

Cooler Master Seidon 120M Liquid Cooler (inc. Dual Fan Performance 2x Noctua NF-F12)

The 2400 RPM, 120mm Blade Master fan was mounted as a rear intake, pushing cool air through the radiator unit.

Thermal Performance Test Procedures:

  • Idle temperatures are obtained after sitting at the desktop for 15 minutes.
  • Load temperatures are obtained after running Prime95 in the ‘Small FFTs’ mode for 15 minutes.
  • We repeated testing with our CPU overclocked to 4.6GHz (46x multiplier, 100MHz base clock) using a BIOS-set voltage of 1.300V.
  • The cooler’s fan(s) is set to 100% to eliminate inaccuracies due to dynamic PWM fan speed adjustments.
  • The supplied thermal paste is used to provide an accurate interpretation of the cooler’s out-of-the-box performance.
  • We use HWMonitor to measure the CPU temperature.
  • CPU temperature recording is accurate to +/- 0.5°C.
  • Ambient temperature recording is accurate to +/- 0.05°C.
  • Ambient temperature was maintained at 21°C.

Acoustic Performance Test Procedures:

  • We measure the noise output of our entire system from a distance of 1m while the CPU cooler’s fan(s) operates at 100% (indicating the maximum noise output).
  • We set the case fans to minimum speed (hence noise) and avoid using a discrete GPU to isolate the CPU cooler’s noise output.

Test System:

  • Processor: Intel Core i5 3570K.
  • Motherboard: Asus P8Z77-V.
  • Memory: 8GB DDR3 1333MHz.
  • Case: NZXT Phantom.
  • Cooling Fans: 1x 120mm 1900 RPM Scythe Kaze Jyuni (front intake), 2x 120mm NZXT (side intake), 1x 200mm NZXT (roof exhaust)
  • Graphics card: On-board.
  • Power supply: 1000W Seasonic Platinum-1000.
  • Storage drives: 128GB Kingston V100 (OS), 1TB Samsung F3, 300GB Western Digital Caviar.
  • Thermal Paste: As supplied with the cooler.

Comparison Coolers:

  • Corsair H60 2013 Edition (fan as rear intake).
  • Sapphire Vapor-X.
  • Thermaltake Frio.
  • Arctic Freezer Xtreme Rev. 2.


  • CPUID HWMonitor.
  • Core Temp (additional certification).
  • Prime95.
  • Windows 7 Professional 64-bit.

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  • Tttt

    Super review Luke. I have to order one of these, what a great deal IMO

  • Eran

    This is an excellent cooler, the all in ones are hard to beat now. I had a D14 for a while and loved it, but it was so hard to get at anything inside the case it blocked half the motherboard !

  • Charles Etheridge

    I recentl got a Seidon 120M and it seems to work very nicely. I did add a C/M Turbo Master Mach 1.8 fan on the case side, which didn’t seem to add any perceptible noise. The one change that I would really like would be the ability to raise the water pump speed. With the two fans it seems that increasing the WP volume would be an excellent option. I’ve got a mildly overclocked i7 – 930 and when running a WSE scan, for instance, hte core temp can still rise to as high as 175 F, so a bit more water flow would be nice. I ahve it in a HAF 922 case and there is plenty of room. I’m about to add a 200mm side fan as well as the original rear case fan at the bottom of the case, and things still won’t be crowded

  • Don

    Did you happen to try installing the fan with an exhaust setup? How much difference would you think the performance/results change?

  • hooner

    I am thinking of buying a Seidon 240, which you can front mount in a N200 case (both products by Cooler Master). If I do front mount is the air being drawn into the case to cool radiator or am I venting air outwards through the front?

    It seems to me air in through the front would mean the heat from the radiator being directed into the case. But i have never thought of front fans becoming exhausts, so perhaps this is correct.

  • Peter

    Hi, I have got this cooling system, but it is incomplete. I would like to but an AMD socket. Has anyone got to sell?