We’ve taken a look at Cooler Master’s Seidon 120M in the past, and the Seidon 120V is similar in that it comes with a 120mm PWM fan that runs as slowly as 600rpm and as fast as 2,400rpm. The wide PWM range ensures that the closedloop system will perform well under load and will function relatively quietly when the computer is idle. Cooler Master also provides a second set of screws to let you attach the 120mm radiator to an existing 120mm fan on your rig, which makes it easy to create push/pull airflow over the radiator and improve performance.
The 1.1-inch thick aluminum radiator is connected to the pump/heatsink unit with FEP tubing, and we found that the ribbed hard plastic hoses are nearly impossible to kink. Another benefit of the FEP tubing, according to Cooler Master, is that it offers a high thermal stability and high pressure tolerance. The pump features a rotation speed of between 1,400 and 1,600rpm and operates at 12V. The pump’s noise level is listed at less than 23dBA.
The included 120mm fan can generate up to 86.15cfm at its top speed and produces a listed noise level of 40dBA. At 600rpm, the fan moves air at 19.17cfm and produces a mere 19dBA. Cooler Master also lists the fan’s air pressure, which an important specification because high air pressure will help to push cool air through the radiator’s tight spaces. At 2400rpm, the fan will produce an impressive 4.16mmH20, while the 600rpm speed delivers an air pressure of 0.31mmH20.
When you power up your system, a blue LED in the middle of the pump/heatsink will light up to indicate that the unit is operating. The blue LED isn’t too bright, so it won’t be distracting if you’ve designed your case’s interior around a different color scheme. The installation process with the Seidon 120V was quick and hassle-free, and Cooler Master provides mounting brackets that support all major Intel and AMD socket types.
We tested the Seidon 120M with Intel’s Core i7-4770K (at stock clocks) and a GIGABYTE GA-Z87X-UP7 TH motherboard. After 10 minutes of idle use, the Core i7-4770K delivered a maximum temperature of 32 C. Next, we pushed the processor by running POV-Ray 3.7 and rendering the benchmark on all cores for 10 minutes. We saw a maximum temperature of 59 C. Finally, we ran four instances of Prime 95’s Small FFT test for 10 more minutes. This demanding test produced a maximum temperature of 65 C. As you can see, there’s plenty of cooling overhead to overclock the Core i7-4770K using the Seidon 120V.
The Seidon 120V is available as a standalone closed-loop CPU cooler or in a Cooler Master bundle with the CM 690 II case. This closed-loop CPU cooler is smartly designed, and thanks to the PWM fan, the Seidon 120V will operate quietly in idle and deliver performance when under load. The 120mm radiator and fan should fit within most any build.
Specs:Materials: Copper (waterblock), aluminum (radiator); Socket compatibility: Intel LGA1155/1156/1366/2011, AMD AM2/AM3/FM1/FM2; Pump: 1400
to 1600rpm, 12V; Fans: one 120mm fan that can operate from 600 to 2400rpm; Radiator dimensions: 154 x 119 x 27mm; Two-year warranty
Test System Specs:Processor: Intel Core i7-4770K; Motherboard: GA-Z87X-UD7 TH; GPU: GIGABYTE GV-N760OC-4GD; RAM: 8GB ADATA XPG V1.0 DDR3-1866; Storage: 128GB Crucial RealSSD C300; OS: Windows 8 Enterprise (64-bit)