Cooler Master Seidon 120M Review

Introduction and Technical Specification

 Cooler Master Seidon 120M Review  



Water cooling, once the preserve of the pro/enthusiast is becoming more mainstream.  With prices falling and mounting systems becoming simpler AIOs are starting to catch the eye of those of us who think of ourselves as mere mortals.  With this proliferation you might be wondering then why it's taken a company such as Cooler Master all this time to bring a range of AIOs to market.  Well it could be because Cooler Master have chosen not to outsource the design and manufacture of the Seidon range, opting instead to keep the whole process in house.  No CoolIT or Asetek clones here, not that there's anything wrong with either of those designs, it's just nice sometimes to see a manufacturer put their money where their mouth is.  Time well spent?  We hope so, but just because it's their own work doesn't mean it's any good.  We're an even handed bunch here at OC3D and just because a firm has a good track record doesn't mean to say we automatically assume their products are all going to fall perfectly formed and delicious like manna from the heavenly table of PC components.  Look back through the reviews and you'll see that many is the time a company renowned for producing pure perfection has produced what can at best be described as pure Poo.  As the smallest sibling to the 120XL and 240M, the 120M enters the market at a very competitive £43.  Inexpensive without doubt, and well into the territory of traditional tower coolers.  How then will the Seidon 120M perform?


Technical Specification


Ø 70 x 27mm (Ø 2.75 x 1.1 inch)

Intel Socket

Intel socket 775, 1155, 1156, 1366, 2011

AMD Socket

 FM1, AM3+, AM3, AM2

Radiator Dimensions

150.3 x 118 x 27mm (5.9 x 4.6 x 1.1 inch)

Radiator Material


Fan Dimensions

120 x 120 x 25 mm (4.7 x 4.7 x 1 in)

Fan Speed

600~2400 RPM (PWM) ± 10%

Fan Air Flow

19.17 ~ 86.15 CFM ± 10%

Fan Air Pressure

0.31 ~ 4.16 mm H2O ± 10%

Fan Life Expectancy

40,000 hours

Fan Noise Level (dB-A)

19 ~ 40 dBA

Fan Bearing Type

Rifle bearing

Fan Connector


Fan Rated Voltage

12 VDC

Fan Rated Current


Fan Power Consumption


Pump Life Expectancy

70,000 hrs

Pump Noise Level


Pump Connector


Pump Rated Voltage

12 VDC

Pump Load Current


Pump Power Consumption







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Most Recent Comments

03-04-2013, 08:46:34

Let's put the 120M, smallest of Cooler Master's new Seidon series of AIO water coolers through its paces.

Continue ReadingQuote

03-04-2013, 09:51:58

Looks like a reasonable alternative to some of the mid-range tower coolers on cooler systems although it seems pretty noisy.Quote

03-04-2013, 09:53:19

I was hoping you'd review this! I've been looking at AIO coolers for my new build for sometime and I wondered about this. Definitely going on my parts to buy list Quote

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