Though Reeven isn’t a household name, their Okeanos flagship cooler is a compelling alternative to established dual tower heatsinks from better known manufacturers.
October 5, 2015 by Lawrence Lee
Product | Reeven Okeanos CPU Cooler |
Manufacturer | Reeven |
Price | US$60~$70 (after conversion) |
Three years have past since we last tested a heatsink from Reeven, an upstart that is still unfamiliar to most DIYers. The Kelveros, Arcziel, and Vanxie coolers were budget models but still underwhelming and forgettable in most regards except for their yellow fans. Their latest offering to our test bench is a more concerted effort, their take on the premium dual tower/fan heatsink. Such flagships from respected manufacturers start for around US$80 and are available worldwide. The Okeanos is selling for the equivalent of US$60~$70, though it can only be found in limited locations (Australia and parts of Europe).
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The Okeanos ships in a compact but colorful bespecked box. Inside, you’ll find the cooler sandwiched between two PWM fans (one 140 mm in size, the other 120 mm), and an accessory box hardware separating the two towers and keeping them in place. The mounting system is typical for this day and age and includes a universal backplate and mounting frame compatible with all Intel/AMD desktop sockets released in the last decade except for LGA775. Three sets of fan clips are provided, as are adapters to lower the top speed of the fans, a wrench, and a small packet of thermal grease. One notable omission is a Y-cable for running both fans off the same fan header. As for the heatsink itself, it’s shaped in a similar fashion to most flagship models though each stack of fins is noticeably thin, which may explain the lower price-tag.
Reeven Okeanos: Specifications (from the product web page) | |
Model Name | RC-1402 |
Socket | INTEL: LGA 1150 / 1151 / 1155 / 1156 / 1366 / 2011 / 2011-V3 AMD: AM2 / AM2+ / AM3 / AM3+ / FM1 / FM2 / FM2+ |
Overall Dimension | (W)140 x (H)163 x (D)135mm |
Fan Dimension | 14cm: 140 x 140 x 25mm 12cm: 120 x 120 x 25mm |
Heatpipe | Ø6mmx4 + Ø8mmx2 |
Fan Speed | 14cm: 300~1700(*300~1100)RPM 12cm: 300~1800(*300~1200)RPM |
Air Flow | 14cm: 16.3~92.4(*16.3~59.8)CFM 12cm: 16.6~92.5(*16.6~63.8)CFM |
Static Pressure | 14cm: 0.002~0.091(*0.002~0.034)inch H2O 12cm: 0.003~0.098(*0.003~0.042)inch H2O |
Weight(with Fan) | 1145g |
*Equipped with SSA(Speed Switch Adapter) to lower the noise & RPM rate. |
PHYSICAL DETAILS
The Reeven Okeanos is composed of 57 aluminum fins friction-fit
to 4 x 6 mm and 2 x 8 mm thick nickel-plated copper heatpipes, which in turn, are soldered to a nickel-plated
copper base. According to my measurements, the heatsink’s dimensions are 14.0 x 10.8 x 16.4 cm (W x D x H) and it weighs 790 grams (about 20% less than similar models). The stock fans add an additional 160 grams each to that total, but they do not increase the overall height.
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INSTALLATION
The most critical aspect of installation is firm, maximum contact
between the base and the CPU heatspreader for efficient heat conduction. Ideally
it should also be a simple procedure with the user having to handle as few pieces
of hardware as possible.
For the Okeanos, Reeven has adopted a similar system used by current industry leaders. It involves putting together a metal mounting rig around the CPU socket and pinning the heatsink to it using a thick crossbeam over the base of the heatsink to apply downward pressure in order to ensure good contact.
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TESTING
Before thermal testing, we took some basic physical measurements of the product(s) for comparison.
Approximate Physical Measurements | |
Weight | 790 g (heatsink only) 1110 g (with stock fans) |
Height | 164 mm |
Fin count | 57 |
Fin thickness | 0.31 mm |
Fin spacing | 1.90 mm |
Vertical Clearance* | 40 mm |
* measured from motherboard PCB to bottom fin of heatsink |
Large Heatsink Comparison: Average Fin Thickness & Spacing | ||
Heatsink | Fin Thickness | Fin Spacing |
SilverStone Heligon HE02 | 0.52 mm | 3.30 mm |
Thermalright HR-02 Macho | 0.34 mm | 3.12 mm |
Thermalright HR-22 | 0.53 mm | 2.74 mm |
Scythe Ninja 3 | 0.39 mm | 2.64 mm |
Scythe Ninja 4 | 0.43 mm | 2.57 mm |
Cryorig H5 Universal | 0.40 mm | 2.47 mm |
Deepcool Gamer Storm Lucifer V2 | 0.39 mm | 2.44 mm |
LEPA LV12 | 0.51 mm | 2.38 mm |
Thermalright Archon SB-E | 0.49 mm | 2.33 mm |
Phanteks PH-TC12DX | 0.39 mm | 2.30 mm |
GELID Tranquillo Rev.2 | 0.40 mm | 2.30 mm |
GELID GX-7 Rev.2 | 0.31 mm | 2.25 mm |
Be Quiet! Dark Rock Pro 3 | 0.40 mm | 2.24 mm |
Phanteks PH-TC14PE | 0.40 mm | 2.21 mm |
Prolimatech Armageddon | 0.51 mm | 2.08 mm |
Cryorig R1 Ultimate/Universal | 0.42 mm | 1.78 / 2.37 mm |
Zalman CNPS10X Quiet | 0.40 mm | 2.00 mm |
Scythe Ashura | 0.43 mm | 1.97 mm |
Reeven Okeanos | 0.31 mm | 1.90 mm |
SilverStone Tundra TD03 (radiator) | 0.43 mm | 1.86 mm |
SilverStone Argon AR01 | 0.30 mm | 1.85 mm |
Scythe Mugen 4 | 0.30 mm | 1.82 mm |
Noctua NH-C14 | 0.38 mm | 1.79 mm |
Enermax ETS-T40 | 0.40 mm | 1.79 mm |
Noctua NH-D15 | 0.46 mm | 1.79 mm |
Scythe Mugen Max | 0.40 mm | 1.77 mm |
Enermax Liqtech 120X (radiator) | 0.46 mm | 1.76 mm |
Be Quiet! Shadow Rock Slim | 0.42 mm | 1.73 mm |
SilverStone Argon AR03 | 0.42 mm | 1.72 mm |
Noctua NH-U14S | 0.42 mm | 1.72 mm |
Scythe Kotetsu | 0.35 mm | 1.66 mm |
Scythe Grand Kama Cross | 0.38 mm | 1.66 mm |
Zalman CNPS9900 MAX | 0.16 mm | 1.59 mm |
Thermalright Silver Arrow | 0.32 mm | 1.57 mm |
Cooler Master Hyper 212 Plus | 0.43 mm | 1.54 mm |
Swiftech H240-X (radiator) | 0.13 mm | 1.80 mm |
Deepcool Gamer Storm Maelstrom 240 (radiator) | 0.26 mm | 1.14 mm |
NZXT Kraken X31/X41 (radiator) | 0.15 mm | 1.07 mm |
NZXT Kraken X61 (radiator) | 0.13 mm | 1.02 mm |
Larger heatsinks are tested on our
LGA1366 heatsink testing platform, while smaller coolers tackle our
LGA1155
heatsink testing platform. A summary of the test system and procedure follows.
Key Components in LGA1366 Heatsink Test Platform:
- Intel Core i7-965 Extreme
Nehalem core, LGA1366, 3.2GHz, 45nm, 130W TDP. - Asus
P6X58D Premium ATX motherboard. X58 chipset. - Asus
EAH3450 Silent graphics card. - Intel
X25-M 80GB 2.5″ solid-state drive. - 3GB QiMonda
DDR3 memory. 3 x 1GB DDR3-1066 in triple channel. - Seasonic X-650 SS-650KM
650W ATX power supply. This PSU is semi-passively cooled. At the power levels
of our test platform, its fan does not spin. - Arctic Silver
Lumière: Special fast-curing thermal interface material, designed
specifically for test labs.
Key Components in LGA1155 Heatsink Test Platform:
- Intel Core i5-2400 Sandy Bridge core, LGA1155, 3.1 GHz, 45nm, 95W TDP, overclocked/volted to 3.6 GHz and 1.300V.
- Intel DP67BG ATX motherboard.
P67 chipset. - Asus
EAH3450 Silent graphics card. - Kingston
SSDNow V 30GB 2.5″ solid-state drive. - OCZ Platinum Extreme Low Voltage DDR3 memory. 2 x 2 GB, DDR3-1333 in dual channel.
- Seasonic X-400 SS-400FL
400W ATX power supply. Passively cooled - Noctua NT-H1: thermal interface material.
The systems are silent under the test conditions, except for the CPU cooling
fan(s).
Normally, our reference fans are used whenever possible, the measured details
of which are shown below.
Reference Scythe 140mm fan Anechoic chamber measurements | ||
Voltage | Speed | SPL@1m |
N/A | 850 RPM | 21 dBA |
N/A | 750 RPM | 18~19 dBA |
N/A | 650 RPM | 16 dBA |
N/A | 550 RPM | 14 dBA |
Reference Nexus 120 mm fan Anechoic chamber measurements | ||
Voltage | Speed | SPL@1m |
12V | 1080 RPM | 16 dBA |
9V | 880 RPM | 13 dBA |
7V | 720 RPM | 12 dBA |
Reference Nexus 92 mm fan Anechoic chamber measurements | ||
Voltage | Speed | SPL@1m |
12V | 1470 RPM | 17 dBA |
9V | 1280 RPM | 14 dBA |
7V | 1010 RPM | 12 dBA |
Measurement and Analysis Tools
- Extech 380803 AC power analyzer / data logger for measuring AC system
power. - Custom-built, four-channel variable DC power supply, used to regulate
the fan speed during the test. - PC-based spectrum analyzer:
SpectraPlus with ACO Pacific mic and M-Audio digital
audio interfaces. - Anechoic chamber
with ambient level of 11 dBA or lower - Various other tools for testing fans, as documented in our
standard fan testing methodology. - SpeedFan,
used to monitor the on-chip thermal sensors. The sensors are not calibrated,
so results are not universally applicable. The hottest core reading is used. - Prime95,
used to stress the CPU heavily, generating more heat than most real applications.
All instances are used to ensure full stress. - CPU-Z,used to monitor the CPU speed to determine when overheating occurs.
- Thermometers to measure the air temperature around the test platform
and near the intake of the heatsink fan.
Noise measurements are made with the fans powered from a separate, fanless system. Load testing was accomplished using Prime95 to stress the processor, and the
graph function in SpeedFan was used to ensure that the load temperature is stable
for at least ten minutes. The temperature recorded is the highest single core
reading. The stock fans were tested at various voltages to represent a good
cross-section of airflow and noise performance.
The ambient conditions during testing were 10~11 dBA and 21~23°C.
NOISE MEASUREMENTS
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Specifications: Reeven Okeanos 140 mm Stock Fan | |||
Manufacturer | Reeven | Power Rating | 3.0 W |
Model Number | RM1425S17B-P | Airflow Rating | 16.3 ~ 92.4 CFM |
Bearing Type | Sleeve | Speed Rating | 300 ~ 1700 RPM |
Frame Size | 140 x 140 x 25 mm (120 mm mounting holes) | Noise Rating | 5.8 ~ 36.4 dBA |
Hub Size | 40 mm | Header Type | 4-pin PWM |
Blade Diameter | 128 mm | Starting Voltage | 5.5 ~ 6.0 V |
Cable Length | 30 cm | Weight | 160 g |
Corner Type | Open | Retail Availability | No |
Data in blue cells provided by the manufacturer or observed; data in the green cells were measured. |
The larger fan positioned at the center of the heatsink utilizes a a frame that makes no effort to conform to a conventional rounded or hexagonal shape, with corners protruding like a staircase. Despite this, it has the same overall dimensions as standard 140 mm case fan and 120 mm mounting holes for improved compatibility. Its nine broad blades are slightly curved and the corners of the leading edges have been squared off in similar fashion to Scythe’s GlideStream line. The straight struts form an acute angle with the blades which often increases tonality. The fan has an unusually high starting voltage but its rated 300 RPM minimum speed on PWM control is also attainable on DC control.
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Specifications: Reeven Okeanos 120 mm Stock Fan | |||
Manufacturer | Reeven | Power Rating | 4.56 W |
Model Number | RM1225S18B-P | Airflow Rating | 16.6 ~ 92.5 CFM |
Bearing Type | Sleeve | Speed Rating | 300 ~ 1800 RPM |
Frame Size | 120 x 120 x 25 mm | Noise Rating | 4.0 ~ 33.4 dBA |
Hub Size | 40 mm | Header Type | 4-pin PWM |
Blade Diameter | 114 mm | Starting Voltage | 5.0 ~ 5.5 V |
Cable Length | 30 cm | Weight | 160 g |
Corner Type | Open | Retail Availability | No |
Data in blue cells provided by the manufacturer or observed; data in the green cells were measured. |
The 120 mm stock fan is housed in a traditional box frame. Its 11 blades are lankier but are otherwise of similar design though the struts are advantageously curved in the opposite direction. The size of the hub is the same as the larger fan, looking out of place on the smaller model, and perhaps taking away some of its airflow potential. Like its big brother, it can hit 300 RPM without issue using both PWM and DC control.
Stock Fan Measurements | ||||
PWM Setting | 140 mm Fan Speed | 120 mm Fan Speed | 140 mm Fan SPL@1m | Combined SPL@1m |
100% | 1680 RPM | 1950 RPM | 34~35 dBA | 41 dBA |
70% | 1340 RPM | 1620 RPM | 29 dBA | 35 dBA |
60% | 1180 RPM | 1410 RPM | 25~26 dBA | 30~31 dBA |
50% | 1000 RPM | 1180 RPM | 21 dBA | 24~25 dBA |
40% | 810 RPM | 890 RPM | 15~16 dBA | 18~19 dBA |
35% | 680 RPM | 710 RPM | 13 dBA | 14~15 dBA |
30% | 580 RPM | 550 RPM | 12 dBA | 12~13 dBA |
Measuring mic positioned 1m at diagonal angle from the center of the heatsink. Ambient noise level: 10~11 dBA. |
Though the two fans are high speed models, they are capable of reaching very low speeds as well, making them suitable whether the user’s bias is toward performance or silence. On PWM control, at 30% speed, the noise generated is practically inaudible in our anechoic chamber, so there’s no need to go any lower. For our noise standards, the speed of both fans should be limited to 900 RPM or lower to maintain a quiet system. At about 50% speed and above, the smaller fan becomes noticeably faster and louder than the larger. The combined noise level begins to become intolerable at only 60% speed.
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Aside from a very faint clicking audible at close proximity, the 140 mm stock fan has a gentle sound, though it does start to get whiny and turbulent at higher speeds. The 120 mm model is not quite as graceful, putting out more bearing chatter, but its overall disposition is still agreeable. On their own, the included fans produce pleasant acoustics but together on the same heatsink, intermodulation rears its ugly head. Beginning at about 45% speed, a noticeable hum takes shape at close to 160 Hz. At 60% speed, an annoying buzzing starts to form at ~400 Hz.
TEST RESULTS
Test Results: Stock 140 mm + 120 mm Fan | ||||
Fan Speed | Single Fan | Dual Fan | ||
SPL@1m | Thermal Rise | SPL@1m | ||
100% | 34~35 dBA | 34°C | 32°C | 41 dBA |
70% | 29 dBA | 36°C | 33°C | 35 dBA |
60% | 25~26 dBA | 36°C | 34°C | 30~31 dBA |
50% | 21 dBA | 38°C | 35°C | 24~25 dBA |
40% | 15~16 dBA | 41°C | 37°C | 18~19 dBA |
35% | 13 dBA | 44°C | 38°C | 14~15 dBA |
30% | 12 dBA | 47°C | 40°C | 12~13 dBA |
Reference 140 mm Fan (Scythe GlideStream 140-M) | ||||
850 RPM | 20 dBA | 40°C | 36°C | 22~23 dBA |
750 RPM | 17 dBA | 41°C | 38°C | 19 dBA |
650 RPM | 14~15 dBA | 43°C | 39°C | 16 dBA |
550 RPM | 13 dBA | 45°C | 41°C | 13~14 dBA |
Measuring mic positioned 1m at diagonal angle from the center of the heatsink. Ambient noise level: 10~11 dBA. |
The Okeanos performs admirably on our test platform, keeping the thermal rise at 40°C or lower at every tested fan speed in dual fan configuration. Its cooling capability varies little as the fan speed drops, with a difference of 8°C separating 100% and 30% speed on PWM control. Given its dual tower design, performance with just the fan at the center is significantly worse. The stock fan setup outpaces our reference fans slightly at every comparable level.
COMPARISON TABLES
CPU Thermal Rise Comparison (°C): Coolers w/Single Fan | ||||||||||||
SPL (dBA@1m) | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
Scythe Ninja 4 | 36 | 37 | 40 | |||||||||
Scythe Kotetsu | 35 | 38 | 41 | 42 | ||||||||
Thermalright Archon SB-E | 39 | 40 | 43 | |||||||||
Thermalright Silver Arrow (one stock fan removed) | 38 | 42 | 46 | |||||||||
Thermalright HR-02 Macho | 38 | 39 | 40 | 41 | 43 | |||||||
Scythe Mugen Max | 38 | 39 | 43 | |||||||||
Scythe Mugen 4 | 40 | 42 | 45 | |||||||||
Noctua NH-U14S | 38 | 40 | 43 | |||||||||
Be Quiet! Shadow Rock Slim | 40 | 41 | 42 | |||||||||
Noctua NH-D15 (one stock fan removed) | 39 | 41 | 44 | |||||||||
NZXT Kraken X41 | 38 | |||||||||||
Thermalright HR-22* (ref. Noctua 140 mm fan) | 39 | 40 | 42 | 44 | ||||||||
Reeven Okeanos (one stock fan removed) | 38 | 41 | 44 | 47 | ||||||||
Noctua NH-C14 (one stock fan removed) | 40 | 41 | 44 | 49 | ||||||||
Zalman CNPS10X Quiet | 40 | 42 | 47 | |||||||||
Cooler Master Hyper 212 Plus | 41 | 44 | 54 | |||||||||
Reeven Okeanos (ref. Scythe 140 mm fan) | 40 | 41 | 43 | 45 | ||||||||
Scythe Grand Kama Cross | 40 | 41 | 44 | 49 | ||||||||
Cryorig R1 Ultimate/Universal (one stock fan removed) | 40 | 43 | 49 | |||||||||
SPL (dBA@1m) | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
Scythe Ashura | 42 | 44 | ||||||||||
Cryorig H5 Universal | 41 | 42 | 45 | 46 | ||||||||
Silverstone Argon AR03 | 41 | 43 | 48 | |||||||||
SilverStone Argon AR01 | 42 | 44 | 50 | |||||||||
Scythe Ninja 3 | 44 | 46 | ||||||||||
Phanteks PH-TC12DX (one stock fan removed) | 44 | 47 | ||||||||||
Antec Kühler H20 620 | 42 | 44 | 47 | |||||||||
Deepcool Gamer Storm Lucifer V2 | 41 | 43 | 45 | 49 | ||||||||
Phanteks PH-TC14PE (one stock fan removed) | 42 | 45 | 48 | |||||||||
Zalman CNPS9900 MAX | 45 | 47 | 49 | |||||||||
LEPA LV12 | 45 | 48 | 52 | |||||||||
NZXT Kraken X31 | 43 | 44 | 47 | |||||||||
SilverStone Heligon HE02* (ref. Noctua 140 mm fan) | 45 | 46 | 48 | 50 | ||||||||
Enermax Liqtech 120X (one stock fan removed) | 45 | 47 | 48 | |||||||||
GELID Tranquillo Rev.2 | 48 | 49 | 50 | |||||||||
Be Quiet! Dark Rock 2 | 48 | 52 | 55 | 61 | ||||||||
GELID GX-7 Rev.2 | 49 | 51 | 56 | |||||||||
Core i7-980X Stock Cooler | 53 | 62 | ||||||||||
Enermax ETS-T40 | 49 | 55 | 64 | |||||||||
Core i7-920 Stock Cooler | 64 | FAIL | ||||||||||
SPL (dBA@1m) | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
Single/dual fan air-cooled heatsinks in light/dark green. Single/dual fan liquid coolers in light/dark blue. *Heatsink ships without fans. |
The Okeanos is out of its depth as a single fan cooler, though it does manage to post a respectable result. Its design isn’t optimized for this of operation.
CPU Thermal Rise Comparison (°C): Coolers w/Dual Fans | ||||||||||||
SPL (dBA@1m) | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
Prolimatech Genesis* (ref. Noctua 140 mm fans) | 35 | 36 | 37 | 39 | ||||||||
NZXT Kraken X61 | 33 | 34 | 35 | 37 | ||||||||
Thermalright Silver Arrow | 35 | 38 | 40 | |||||||||
Reeven Okeanos | 37 | 38 | 40 | |||||||||
Noctua NH-C14 | 36 | 37 | 39 | 41 | ||||||||
Thermalright HR-22* (ref. Noctua 140 mm fans) | 37 | 38 | 39 | |||||||||
Scythe Ninja 4 (ref. Scythe 140 mm fans) | 36 | 37 | 40 | |||||||||
Thermalright HR-02 Macho (ref. Noctua 140 mm fans) | 36 | 37 | 40 | |||||||||
Reeven Okeanos (ref. Scythe 140 mm fans) | 38 | 39 | 41 | |||||||||
Noctua NH-D15 | 38 | 39 | 40 | |||||||||
Swiftech H240-X | 33 | 35 | 36 | 39 | ||||||||
Phanteks PH-TC14PE | 38 | 39 | 41 | |||||||||
Scythe Mugen Max (ref. Noctua 140 mm fans) | 39 | 41 | ||||||||||
Be Quiet! Dark Rock Pro 3 | 39 | 40 | 44 | 49 | ||||||||
Cryorig R1 Ultimate | 37 | 41 | 42 | |||||||||
Scythe Mugen 4 (ref. Noctua 140 mm fans) | 39 | 40 | 42 | |||||||||
Deepcool Maelstrom 240 | 40 | 41 | 45 | 46 | ||||||||
Cryorig R1 Universal | 39 | 41 | ||||||||||
SilverStone Tundra TD03 | 40 | |||||||||||
Deepcool Gamer Storm Lucifer V2 (ref. Noctua 140 mm fans) | 40 | 41 | ||||||||||
Cooler Master Seidon 240M | 40 | 43 | 53 | |||||||||
Phanteks PH-TC12DX | 41 | 44 | ||||||||||
SilverStone Heligon HE02* (ref. Noctua 140 mm fans) | 44 | 46 | ||||||||||
Enermax Liqtech 120X | 44 | 45 | ||||||||||
Zalman CNPS9900DF | 48 | 50 | 53 | |||||||||
SPL (dBA@1m) | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 |
Single/dual fan air-cooled heatsinks in light/dark green. Single/dual fan liquid coolers in light/dark blue. *Heatsink ships without fans. |
Amongst coolers equipped with twin fans, the Okeanos lands in the top four, wedged comfortably in position between the Thermalright Silver Arrow and Noctua NH-C14.
MP3 SOUND RECORDINGS
These recordings were made with a high
resolution, lab quality, digital recording system inside SPCR’s
own 11 dBA ambient anechoic chamber, then converted to LAME 128kbps
encoded MP3s. We’ve listened long and hard to ensure there is no audible degradation
from the original WAV files to these MP3s. They represent a quick snapshot of
what we heard during the review.
These recordings are intended to give you an idea of how the product sounds
in actual use — one meter is a reasonable typical distance between a computer
or computer component and your ear. The recording contains stretches of ambient
noise that you can use to judge the relative loudness of the subject. Be aware
that very quiet subjects may not be audible — if we couldn’t hear it from
one meter, chances are we couldn’t record it either!
The recording starts with 5 second segments of room ambiance, then the fan
at various levels. For the most realistic results, set the volume so that
the starting ambient level is just barely audible, then don’t change the volume
setting again.
- Reeven Okeanos stock fans at 1m
— at 30% PWM, 580/550 RPM (12~13 dBA)
— at 35% PWM, 680/710 RPM (14~15 dBA)
— at 40% PWM, 810/890 RPM (18~19 dBA)
— at 50% PWM, 1000/1180 RPM (24~25 dBA)
— at 60% PWM, 1180/1410 RPM (30~31 dBA)
— at 70% PWM, 1340/1620 RPM (35 dBA)
— at 100% PWM, 1680/1950 RPM (41 dBA)
FINAL THOUGHTS
The Reeven Okeanos is one of the most effective dual fan heatsinks on the market despite having a leaner construction than similar models in its class. Its aluminum fins are not overly thick from nickel-plating and as a result, they managed to pack in 57 fins, creating twin arrays with an ample amount of surface area for heat dissipation. Like similar systems, their mounting scheme generates good contact between the convex base and the CPU heatspreader and is easily assembled though I wish the nuts used to setup the mounting frame could be tightened with screws rather than a wrench or pliers. The included fans have a far superior sound when used individually but intermodulation effects are not noticeable at lower fan speeds. If appearances are important, the name plate gracing the top of the towers is perhaps the most stylish I’ve encountered, though yellow fans may not be everyone’s cup of tea.
This is a complete turnaround compared to the first Reeven products we reviewed three years ago. The Kelveros, Arcziel, and Vanxie were budget coolers but even so, they were unremarkable while the Okeanos is far more memorable. It manages to not only compete with, but also undercut some of the biggest baddest air coolers from the most respected of manufacturers. Its biggest issue is its limited regional availability though if you are in the right location, it can be purchased for the equivalent of US$60~$70, considerably less than most top-tier coolers of similar design. As good as a value as this appears to be, keep in mind it is still overpayment compared the best single fan heatsinks which can get you 95% of the way there for even less.
Our thanks to Reeven
for the Okeanos CPU cooler sample.
The Reeven Okeanos is recommended by SPCR
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SPCR Articles of Related Interest:
Scythe Ninja 4: A Legend Reborn
Scythe Mugen Max & Deepcool Lucifer V2 Heatsinks
Deepcool Gamer Storm Maelstrom 240 AIO Liquid Cooler
Be Quiet! Dark Rock Pro 3 & Cryorig H5 Universal Coolers
NoFan CR-80EH & CS-60 Fanless Cooler & Case
Phanteks PH-TC14S & Cryorig C1 CPU Coolers
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