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John Weland | December 18, 2019

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ORCUS 120 RBW by Raijintek

Something new in the lab today – The ORCUS 120 RBW by Raijintek. Unlike most standard setups where the pump is built into the cold plate housing or radiator, this is the first AIO I’ve come across with the pump built in to the hose assembly. In fact, I’ve never seen a setup like this before, so it took me a few minutes of staring at it before realizing just what I was looking at.

Unboxing

As far as packaging goes, the ORCUS 120 RBW and it’s big brother the ORCUS 240 RBW both come in identical boxes with only a checkbox on the side of the box to indicate the contents.

In the box, you have the AIO assembly and its fan. There is also an accessories kit which includes various mounting hardware. The ORCUS 120 RBW also comes with a few extras like: an addressable RGB hub, remote control, thermal compound, and an applicator. Extra coolant is included because this thing is serviceable, and there’s a 24-pin power jumper for power cycling the unit when servicing.

The ORCUS 120 RBW’s aesthetics

The pump is mounted on the hose – partway down from the radiator, rather than actually with the block and radiator. Additionally, the block on the ORCUS 120 RBW has a built-in flow indicator. Not only does it look great, it also gives you that extra peace of mind – because simply glancing over and seeing the flow indicator spinning assures you that the fluid in the ORCUS 120 RBW is moving through the system.

This cooler is colorful, without a doubt. Although I’ve never been a huge proponent of the RGB craze, some of the presets on the OCRUS 120 RBW are just fascinating to watch. For example: The fan has seven addressable RGB zones, and the block has five, and there are eight different unique presets with variable speed and brightness adjustments for each. Furthermore, the pump and the fan’s LEDs are very evenly diffused and look great.

The LEDs on the pump also highlight the built-in flow indicator. To illustrate: Let’s call my two favorite settings “night rider” and “lighting.” “Night rider” has the LEDs chasing each other in a ring. Similarly, “lighting” splits the zones in two and flashes them both in rapid succession.

Installing the ORCUS 120 RBW

Installation of the ORCUS 120 RBW is, in fact, fairly straightforward. It may not be as streamlined as some of the common ASATek kits that a lot of AIM manufacturers use, but it isn’t a cumbersome endeavor.

Mounting is comprised of two rings. The foam lined ring goes behind the motherboard (foam side against the board), then screws go through the mounting holes. and are secured with spacers. The second ring then goes on top (front side of motherboard), also secured to the spacer. Add your thermal compound, then set the block in place and fasten its two mounting screws.

Testbench

MBASUS Prime B350-PLUS
CPUAMD Ryzen 7 1700x
RAM16GB TeamGroup TForce (2400MHz)
SSD240GB Kingston
GPUXFX Radeon R7 370P
CaseStreacom BC1 (OpenBench Table)
FansN/A

This time around, my test bench of choice is the Streamcom BC1, better known as the OpenBench Table. Unlike the last bench, this one is open-air so the AIO can be tested without variations in case air flow or air flow restrictions. The test bench was kitted with an ASUS Prime B350-PLUS powered by an AMD Ryzen 7 1700x. The Ryzen 7 1700x is an 8 core 16 thread CPU with a TDP of 95w at stock clocks (3.4GHz base 3.8GHz boost).

The testing environment is well controlled, with an ambient temperature of 23.33° Celsius (or 74° in Fahrenheit). The humidity is maintained between 35% and 38%.

The Orcus RBW 120 mounted on to the test bench

Testing the ORCUS 120 RBW

Aside from being on an open air test bench, the testing methods are the same as when we tested the Arctic Liquid Freezer II – fire up OCBase’s OCCT and let it run until the temperature stops climbing (which usually takes roughly 15 minutes). As with the Arctic test, I opted to run for 30-minute intervals with a system reboot after each test. I also reapplied thermal paste after every 3 tests, for a total of six runs each.

Test Results

Over the course of six individual runs, the ORCUS 120 averaged 52° C within the first 5 minutes of the run. It finally hit equilibrium after about 15 minutes, maintaining 68° C with a couple of peaks to 69° C and one dip down to 65° C. The ORCUS 120 managed to keep temperatures in check while remaining fairly quiet. In fact, there were no noticeable pump noises and the fan was only just barely audible on the Streacom BC1. In a quality case, I’d imagine the average user would forget it’s even there.

Test results from the Raijin ORCUS 120 RBW

My final thoughts on the ORCUS 120 RBW

Truth be told, I kind of like it. Having the individual components separated makes it easier to work with and determine any problems., whereas in a standard setup where the pump is built on with the housing or radiator, it’s harder to determine where the issue lies.

I mean, of course, if one part fails, you’ll still have to pull the whole thing. But at least with the parts separated, things are easier to get at to find the problem in the first place, and maybe save it.

However – having said that, I do feel that performance could be a little better. It does a good job of keeping temperatures manageable, although I would prefer just a bit more cooling capacity. Perhaps its bigger brother, the ORCUS 240 RBW, can pull off that feat.

It is worth noting that the ORCUS 120 RBW is made from mixed metals, which do tend to be more susceptible to corrosion over time. Raijintek did assure me, however, that their liquid solution does in fact contain anti-corrosives which should help to combat corrosion.

For approximately $70 (at the time of writing this), you can get the ORCUS 120 RBW: an AIO that can keep pace, run quietly and add a little something aesthetically. It has a range of RGB settings, and it is serviceable. For the nuts and bolts, I’ve listed the specs below:

Specs

Product NameORCUS 120 RBW
Product Number0R10B00102
Radiator Dimensions [WxHxD]152x120x27mm
Weight (total)710g
Thermal Resistance0.11 °C/W
Liquid Capacity115ml ± 10%
Fans1
Tubing DimensionsID – 5mm / OD – 10.6mm
Material Copper Cold Plate /Aluminium Radiator

Pump

Dimensions [WxHxD]69.5x40x33mm
Bearing TypeCeramic Axis & Pipe
Q-Max86 L/H
Head Preasure1.4 Meter
Noise Level25dBA
Life Expectancy50,000 hourse
Speed4500±10% RPM @ 12V DC
Current Rating 150mA
Voltage Rating12V
Power Consumption1.8W

Fan

Dimensions [WxHxD]120x120x25mm
Voltage Rating12V
Starting Voltage6V
Speed400~1800 RPM
Bearing TypeHydraulic
Air Flow35.8 CFM [MAX]
Air Pressure1.16 mmH20 [MAX]
Life Expectancy40,000 hours
Noise Level 28 dBA [MAX]
Connector5V ADD header, PWM 4 pin header
Current Rating0.12A ± 10%
Power Consumption1.44W ± 10%
LED Current Rating0.69A [MAX]
LED Power Consumption8.28W [MAX]
Accessories8 port [ADD] addressable LED hub x1, remot controll x1, motherboard ADD connection x1

Application

IntelAll socket LGA 775/115x/1366/201x/2066
AMDAll AM4/AM3+/AM3/AM2+/AM2/FM2+/FM2

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