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Scythe Mugen 5 Rev.B CPU Cooler Review (Page 1)

Scythe Mugen 5 Rev.B CPU Cooler Review

Scythe's Mugen 5 Rev.B is one of the best CPU air coolers we have reviewed in recent times. Why? Come and find out.

Chad Sebring | Aug 29, 2017 at 11:16 am CDT - 3 mins, 57 secs reading time for this page
Rating: 97%Manufacturer: Scythe

Introduction, Specifications, and Pricing

Scythe Mugen 5 Rev.B CPU Cooler Review 02 |

When it comes to shopping for a new CPU air cooler, Scythe will deliver three things, every time, no matter what. The first of those things is that no matter your needs in cooling or the space allowed for it to fit into, Scythe has one, if not two coolers to fit exactly what you are looking for. The second of these things is that when it comes to design and aesthetics, Scythe delivers some of the best-looking coolers available. The last thing, and what is most important to buyers today, is that you are given terrific performance results, with little to no audible noise coming from their products.

We also know that Scythe does not jump around with product lines, trying new things out of left field, hoping to hit a home run. Typically, their methodology revolves around delivering an updated cooler to an already existing product line, by absorbing customer feedback, as well as adapting existing designs to fit the needs of the users as the market evolves. Today is no different, as we delve into a cooler which sports a name that anyone will recognize, yet it has been adapted to fit the needs and requirements of motherboards which were not even though of when this cooler series was originally released.

As we sit here today, we are bringing forth the Scythe Mugen 5 Rev.B CPU cooler for examination. Based off the highly awarded Mugen 5, this latest version offers a few minor changes which will deliver customers flexibility, as well as accommodating the latest motherboards to be released. The Mugen 5 Rev.B has an offset and has a section removed from the fins to work flawlessly with motherboards supporting RAM on both sides of the cooler. More importantly, to AMD users, the cooler also brings new hardware to fit on AM4 motherboards. Scythe also uses nickel plating to the heat pipes and is using a new fan from their Kaze Flex series, to up the performance, without drowning you with noise. Realistically, bottom line, this is the Mugen 5 with new mounting hardware.

Scythe Mugen 5 Rev.B CPU Cooler Review 01 |

In the chart taken from the product page, we find lots of information to discuss the Mugen 5 Rev.B CPU cooler. First of all, the Mugen 5 Rev.B can also be found by looking up the model number SCMG-5100, and we also see compatibility is quite encompassing. On the Intel side of mounting, everything since and including LGA775 is covered. As for AMD, the mounting hardware allows anything since and including AM2, all the way through to AM4 to have no issues with mounting either. Dimensionally, the Mugen 5 Rev.B is 130mm wide; it is 154.5mm tall, it is 110mm thick with the fan included and weighs in at 890 grams. The materials used are aluminum for the thirty-nine fins in the stack, as well as being used for the pre-cooler on the base. Copper is used for the heat pipes and is also used for the contact plate of the base, but both the pipes and the base are plated with nickel for looks as well as anti-corrosive reasons.

The fan of choice to cool this tower is the Kaze Flex 120 PWM fan or the SU1225FD12M-CHP fan. Dimensionally the fan is 120mm square, and it is 27mm in thickness, with a noise rating topping out at 24.9 dBA. Airflow is not amazing at just 51.17CFM, and neither is the air pressure with its 1.05 mmH2O rating. Fan speeds can range from 300 to 1200 RPM via PWM, and the hub spins on a Fluid Dynamic Bearing which is sealed, sporting a run time of up to 120,000 hours.

As we write this review, finding the cooler is somewhat a bit of a gamble. While we see many listings for the Mugen 5 and prices to go along with it, you need to pay particular attention to the model number. Many you will see listed when searching "Scythe Mugen 5 Rev.B" come back to the original, sporting the SCMG-5000 model number. However, even the one place, Coolerguys, who do list the correct model number, do not show the correct image for the hardware. We do know from the press release, that the €40 price overseas was not to have changed for the revision, so the $51.95 price shown there is roughly $5 over the transfer rate.

Currently, unless you had the Mugen 5 and got with Scythe support for the new brackets, this is the only place we found with the Mugen 5 Rev.B in stock on this side of the pond. While there is a touch of a price hike, if you have to have this cooler, you are going to have to meet their demands at Coolerguys.

Last updated: Nov 15, 2019 at 01:16 pm CST

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Chad Sebring


After a year of gaming, Chad caught the OC bug. With overclocking comes the need for better cooling, and Chad has had many air and water setups. With a few years of abusing computer parts, he decided to take his chances and try to get a review job. As an avid overclocker, Chad is always looking for the next leg up in RAM, cooling, as well as peripherals.

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