The RAIJINTEK EREBOSS Gets Tested

With the TISIS already tested and analyzed, the RAIJINTEK EREBOSS follows up our look at the company’s top tower coolers. This might not be a dual tower but by specifications, it is still a top-end CPU cooler with a huge dissipation area and a good thermal resistance value to boot.

Specifications aside, this CPU cooler is by no means your standard cooling solution. It’s a huge block of aluminum with unique features, and a slim fan to go with it. This cooler has been around since 2013 by the way and with that said, this living fossil is begging to be tested with the current PC components at our disposal. Is it still a good cooler? We shall find out!

RAIJINTEK EREBOSS SPECIFICATIONS:

Product Name EREBOSS / EREBOSS BLACK
Product Number 0P105250 / 0R100011
Dimension [W×D×H] 140×110.5×160 mm
Weight 808 g [Heat Sink Only]
Thermal Resistance 0.11 °C/W
Heat Sink Base Material Nickel Copper Base
Heat Sink  Fin Material Aluminum Alloy; Solder-free fins assembly
Heat-pipe SPEC Φ6mm
Heat-pipe Quantity 6 pcs

AEOLUS α PWM FAN SPECIFICATIONS:

Dimension [W×H×D] 140×150×13 mm
Voltage Rating 12V
Starting Voltage 7V
Speed 650-1400 R.P.M. [PWM controlled]
Bearing Type Sleeve Bearing
Air Flow 44.43-56.55 CFM
Air Pressure 0.76~1.24 mmH2O
Life Expectance 40,000 hrs
Noise Level 28.0 dBA
Q’ty 1 pcs

 

PACKAGING & ACCESSORIES:

The RAIJINTEK EREBOSS comes in a compact packaging with its specifications, and features laid out pretty well across all the visible surfaces. I say RAIJINTEK is not wasting any available areas to showcase this cooler’s features.

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Inside, you’ll get a rewarding amount of accessories to utilize. There are steel mounting kits for both Intel and AMD, plus a variety of extras. That includes a screw driver, a sachet of TIM, and a variety of fan mounting kits. There’s a lot of small pieces at the EREBOSS’ loot box so care is definitely required when handling the accessories.

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RAIJINTEK included the Aeolus α 140mm fans with the EREBOSS. This is a sleeve bearing fan rated to output 650-1400 RPM, with a 28dBA noise level at maximum load. The fan also features a 0.76~1.24 mmH2O air pressure level, with a corresponding 44.43-56.55 CFM of Air Flow. This is a 13mm slim PWM fan. Possibly the slimmest during its time.

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THE RAIJINTEK EREBOSS CPU COOLER:

The RAIJINTEK EREBOSS is one huge cooler, towering at 160mm with a width of 140mm. It’s just a little shorter than – but still just as wide as the TISIS. Weight is just around 800 grams so it is within the medium weight mark. You can stack 2 fans via the provided rubber inserts, but you can also install them on the slimmer 110mm side via the metal brackets.

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The EREBOSS is no symmetrical cooler when it comes to design much like the TISIS. The aluminum fins counts to 33 pieces, with around ~0.4mm of space between them. Assembly is made solder-free so I’m curious on how this will perform compared to other soldered solutions.

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The RAIJINTEK EREBOSS’ base plate is not mirror finished but it is nickel plated copper base to start with. This plating will provide corrosion resistance, and wear resistance over time compared to bare copper plates. 32 out of the 33 fins features a number of triangular perforations that should aid cooling. Notice that the base plate is not really at the center of the cooler’s mass. That should help the EREBOSS to feature better compatibility with memory slots.

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The cooler features Six, 6mm diameter heat-pipes. They are configured in a crisscross pattern and that again should aid cooling. Looks quite good too.

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INSTALLING THE RAIJINTEK EREBOSS:

Installing the TISIS is tedious, and the EREBOSS is no different. First off, trying to put this thing together inside a case is a huge no-no, as with any other massive tower coolers out here. There’s a lot of small items to take care of, and chances are – one mistake could snowball you into frustration.

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The mounting kit is the same with the other RAIJINTEK offerings, thus requiring you to lock the back plate using the plastic fasteners / washers once in place. The back pl;ate will simply fall off easily without these.

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The back plate and the brackets for the LGA sockets doesn’t feature leads to guide you where to specifically align the screws. That said, you are required to check the positioning of the brackets before slapping in the cooler.

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Finished build looks nice and massive even on a full size ATX motherboard.

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Now as for compatibility, this cooler should be compatible with expansion cards situated at the first slot of the board. This means that if your board features a top slot mounted graphics card, there wont be any issue – unless your card has a thick back plate installed. Now as for the memory, this will eat up the first slot with the fan attached, so you have to install the fan at the back (push or pull), or have a standard memory kit installed instead of taller none standard ones.

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TEST SETUP & METHODOLOGY:

Coolers are far from the hardest components to test, but it doesn’t mean they are easy enough to deal with since there are multiple factors to take into account while benchmarking. That includes the ambient noise, ambient temperature, the enclosure used, and the test system’s configuration. With that said, keeping all those things in-check should be paramount to provide the readers an objective and precise result.

For this test, we have mounted our system on an open air test bench. This is to ensure a controlled, and versatile test setup that we can use on our future cooling solution reviews.

PROCESSOR INTEL CORE I5 6600K
MOTHERBOARD ASUS Z170-A
CPU COOLER RAIJINTEK EREBOSS
MEMORY CRUCIAL BALLISTIX TACTICAL 16GB
GRAPHICS CARD ASUS GTX 1060 STRIX OC 6GB
STORAGE CRUCIAL MX100 256GB
POWER SUPPLY CORSAIR RM850X 850W
DISPLAY 27″ DELL U2715H WQHD IPS PANEL
OPERATING SYSTEM MICROSOFT WINDOWS 10 PRO

 

The AIDA64 Extreme Edition System Stability Test is used to stress our Intel Core i5 6600K. We specifically selected the CPU, FPU, Cache, and Memory at the stability test’s options. AIDA64 has been chosen due to its inclusion of AVX, AVX2 and FMA – 3 important instructions that will help us push our CPU to its limits.

The ambient temperature is 27°C (±1°C), and the ambient sound level is 34dBA (±1dBA). Our CPU is clocked at 3.9GHz with a voltage of 1.088v as the stock profile. Overclocked profile on the other hand is at 4.4GHz with a 1.248v on the vCore. The temperature of the system is logged with HWiNFO64, and is cross referenced with AIDA64. The sound level is measured by a sound level meter with a foot of distance from the cooler. Results are in Delta T over ambient.

RAIJINTEK EREBOSS FAN SPEED & SOUND LEVELS:

We tested the Aeolus α 140mm fans included with the EREBOSS on a variety of fan duty cycles available thru our ASUS Z170-A motherboard. The lowest attainable speed during the test is 624 RPM (30%), with a mid-range at 881 RPM (50%), while the maximum is 1347 RPM (100%).

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RAIJINTEK EREBOSS COOLING PERFORMANCE:

We tested the RAIJINTEK EREBOSS with easily attainable configurations that should resemble common system builds. Our 3.9 GHz configuration for an instance, resembles that of a mid-range CPU on its stock settings. At this level, the RAIJINTEK EREBOSS doesn’t even have to sweat, offering an acceptable performance even at its 30% fan duty cycle.

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At 4.4GHz, the EREBOSS showed a considerably good temperature results. Providing a strong 100% fan duty cycle performance. Performance at around ~624 RPM (30%) is not the best though so you should stick to 50-100% fan duty cycle at this level.

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CPU COOLER SHOOT-OUT:

The RAIJINTEK EREBOSS features a good stock CPU cooling performance, but it is bested by the cooling solutions on this test. Still, not a bad performance.

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The RAIJINTEK EREBOSS again falls at the back of the pack with a result of 60.2°C. Minimums are lagging behind too, with a result of 34.2°C.

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COOLING EFFECT OVER COMPONENTS:

We also measured how the RAIJINTEK EREBOSS affects its surrounding components. This is a little experimental section using the values we’ve attained from HWiNFO together with our temperature gun. These values are taken while the CPU is overclocked at 4.4GHz, at load, and with a 100% fan duty cycle.

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WRAPPING IT UP:

The RAIJINTEK EREBOSS is an interesting CPU cooler, featuring a massive 140mm stack of aluminum fins with extra features added into the mix. Aesthetics and build quality are great, although I must say that the TISIS is a tad better on both fronts. Installation is similar to the TISIS, with the same mounting kit so you should expect a more tedious installation process compared to the other coolers. RAIJINTEK really have to update their mounting kits for a better end-user experience.

Cooling performance is at the lower end of the chart, and perhaps we’ve expected too much from this old fellow. It’s at the back of the pack compared to the other solutions we’ve tested but performance figures aren’t actually that far off from the competition so there’s that. As for noise output, the Aeolus 140mm is actually pretty decent, with a maximum of 41.9 dBA at full load. Not bad for a super slim 140mm fan, but that is still a little noisier compared to dual RAIJINTEK Boreas 140mm fans at full load.

Now as for the pricing, most online retail stores are asking around 43 – 50 USD for this cooler. Depending on where you’re looking at, that’s almost 30 bucks less than the TISIS. It’s a good value for money if all you require is a capable cooler but if space and stellar compatibility are your main concerns, look elsewhere.

Overall, the RAIJINTEK EREBOSS is a good cooler with a matching price-point. It’s actually a dated piece of engineering going way back the year 2013, but it is still a capable one up to this day. It is RAIJINTEK’s living legacy, and there’s no reason to take it off the shelves any time soon.

  • RESPECTABLE COOLING PERFORMANCE
  • DESIGN STILL LOOKING GOOD THIS SIDE OF 2017
  • WELL BUILT TOWER COOLER
  • GOOD VALUE FOR MONEY
  • INSTALLATION COULD BE EASIER
  • POTENTIAL COMPATIBILITY ISSUES
  • FAN NOISE AT FULL LOAD

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