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Scythe Orochi SCORC-1000 Low Noise Heatsink Review
Scythe Orochi SCORC-1000 Low Noise Heatsink Review
  82%   
Abstract: Scythe made the Orochi heatsink large for a reason, so that it can be paired with a slowly rotating ultra quiet fan to gently move air through the massive heatsinks' fins.

 Company link  Category  Published  Author 
Scythe   Cooling / Heatsinks   Dec 19, 2008   Max Page  
Home > Reviews > Page Title: Intel LGA775 Heatsink Temperature Comparisons

FrostyTech Mk.II Synthetic Thermal Heatsink Test Results
Intel Pentium D / Extreme Edition & Quad Core class heatsinks tested at 150W
Intel Core 2 Duo / Pentium 4 / Celeron class heatsinks tested at 85W

Results based on readings from a 30x30mm copper interface die with 150W and 85W heat loads applied on the LGA775 version of the Mk.II Test Platform. Temperature results listed for each heatsink were calculated by determining the rise over ambient temperatures at time of test. Information on Frostytech's test methodology is available here.
Socket 775 compatible CPU heatsinks
Manufacturer: Model No.: Fan Speed: 150W
Thermal Test* (°C)
85W
Thermal Test (°C)
Noise Level (dBA)

Xigmatek HDT-S1283 high 16.8 10.7 50.7
Thermalright Ultra 120 17.8 10.6 53.7
3Rsystem Iceage 120 high 18.2 12.1 47.9
Thermalright Ultra 120 Extreme 18.4 11.4 44.5
Coolermaster Hyper 212 19.0 11.8 45.9
Apack Zerotherm BTF92 OC Ed high 19.0 11.2 53.6
Zalman CNPS9700 LED high 19.0 10.4

56.5

Xigmatek HDT-S983 high 19.5 11.8 52.7
Scythe Mugen 19.5 11.4 46.0
Tuniq Tower 120 high 19.6 12.2 51.6
Thermalright Ultra-90 high 19.6 13.0 56.2
Apack Zerotherm Nirvana 120 high 19.8 12.3 49.2
Enzotech Ultra-X high 20.0 8.5 59.1
Zalman CNPS9700NT high 20.3 12.4 52.2
Scythe Infinity SCINF-1000 20.3 12.6 37.8
OCZ Vendetta high 21.3 13.5 52.8
Noctua NH-U12P high

21.3

13.4 40.7
Apack Zerotherm BTF90 21.8 12.7 52.1
Xigmatek HDT-S963 high 21.9 13.7 50.2
Akasa AK-965 high 22.2 13.8 48.1
Apack Zerotherm BTF80 22.8 13.9 51.9
Zalman CNPS8700 LED high 23.2 14.1 48.1
Cooljag Falcon 92-AL high 23.2 14.2 52.1
Rosewill RCX-Z3 high 23.3 14.0 58.6
Coolink Silentator high 23.5 16.4 41.2
Scythe Mine Rev. B 23.6 15.0 36.8
Cooljag Falcon 92-Cu high 23.6 14.8 52.8
Akasa AK-920 high 24.3 14.1 52.9
Scythe Zipang 24.7 15.2 33.1
Glacialtech Igloo 5750 PWM high 24.9 14.6 52.3
Asus Arctic Square high 24.9 14.9 44.9
Akasa AK-922 (EVObue) high 25.5 15.4 60.3
Coolermaster Aquagate Mini R80 high 25.7 16.2 59.2
Asus Silent Square EVO high 25.8 15.6 42.8
Glacialtech Igloo 5610 PWM high 25.9 15.9 59.5
Thermalright SI-128SE 26.5 15.2 44.5
Scythe Andy Samuri Master SCASM-1000 26.7 14.2 38.4
ASUS Triton 77 high 27.7 17.6 41.2
Auras SLC-747 high 27.9 25.7 52.2
Auras LPT-700 28.3 16.9 52.2
Thermalfly F1-IACSHA high 29.0 18.3 60.4
nPowertek TTIC NPH1000 29.3 16.8 47.5
Glacialtech Igloo 5710 Silent 29.4 18.0 43.4
Thermalfly I75DUB high 29.5

16.8

68.5
Zalman CNPS9500 AT 29.6 17.3 53.3
Glacialtech Igloo 5750 Silent 29.8 18.5 35.5
Coolermaster Hyper TX2 29.9 18.8 53.7
Alpha Novatech PRE9060M92P high 29.9 18.5 51.5
Scythe Kama Cross 30.0 18.8 40.0
Akasa AK-961 30.0 18.7

60.7

Auras LPT-709 30.1 18.6 43.9
Rosewill RCX-Z2-EX high 30.1 18.7 45.9
nPowertek NPH-775-1 30.1 18.8 50.1
Glacialtech Igloo 5610 Silent 30.4 17.1 44.7
Sunon Waturbo 30.6 18.3 57.5
Scythe Shuriken high 31.4 18.8 38.2
Apack CF800 high 31.4 20.7 48.4
Thermaltake Jungle512 high 31.6 20.4 60.8
Coolage Frozen Orb F0-Z924AL high 32.0 19.9 48.9
Xigmatek AIO-S80DP high 32.4 21.4 55.0
Scythe Katana II 32.5 18.6 37.9
Rosewill RCX-Z2

32.6

19.3 59.9
Zalman CNPS7700-Cu high 32.9 19.7 50.7
Apack CF900 high 32.9 20.3 48.3
Evercool PT02-9232CP 33.3 19.9 63.3
Zalman CNPS7700-Cu LED high 33.5 20.6 49.8
Scythe Ninja Mini 33.7 19.9 41.7
Thermalright MST-977SLE 33.8 20.0 46.5
Intel Stock Pentium D high 33.8 20.7 47.5
Scythe Orochi SCORC-1000 34.0 20.8 27.8
nPowerTek SF775-2 high 34.7 21.1 64.6
Akasa AK-960E 36.1 21.4 56.3
Gigabyte Volar GH-PSV21-FB high 36.3 22.1 56.1
Auras SMF-660 36.4 23.0 43.4
Zalman CNPS7500-Cu LED high 36.4 22.9 50.9
Thermalfly I75DUH 37.8 22.8 48.7
Akasa AK-975CU high 38.4 23.0 47.7
Cooljag OAK-H high 38.5 22.9 55.7
Cooljag OAK-H2 high 38.6 24.1 55.6
LS Cable SHS-T700 38.7 22.8 48.5
Arctic Cooling Alpine 7 Pro high 40.5 23.8 44.1
Intel Stock Core 2 Duo 49.2 29.0 36.7
Glacialtech Igloo 5062 Cu Light 50.6 29.7 45.2
Glacialtech Igloo 5057 E 58.5 36.1 53.4
Asus Triton 75 58.6 16.1 49.6
Spire Fourier IV SP607B3-C 63.6 18.7 60.2
150W
Thermal Test (°C)
85W
Thermal Test (°C)
Noise Level (dBA)
*Heatsinks are ranked according to the 150W thermal test results column (rise over ambient temp.). Low temperatures with low noise levels are considered best. For reference heatsinks with variable-speed fans, only the high speed (12V) fan test result is included in the comparison sheet; more detailed results reside in each specific heatsink review.

The heat output from Intel processors varies widely between single and multi-core processors, so Frostytech relies on two thermal values that represent the upper limits of existing CPU families. With a 150W heat load applied by the Intel LGA775 version of FrostyTech's synthetic thermal test platform, the Scythe Orochi heatsink holds steady at 34.0°C over ambient. It's not the coolest heatsink in the reference list, but this temperature is perfectly satisfactory and more importantly only 27.8 dBA noise is generated.

Next the Scythe Orochi heatsink was tested with an 85W heat load; akin to an Intel Core 2 Duo processor. In this case the Orochi heatsink maintains a good 20.8°C rise over ambient.

There is no getting around the fact that Scythe's Orochi heatsink is massive. It stands 180mm tall with the 140mm diameter fan installed, and it weighs upwards of 1150grams. Quite obviously, the Orochi heatsink will not fit inside every full tower case, or accommodate every motherboard with big northbridge/MOSFET cooling solutions.

Scythe have at least given the Orochi a good 52mm of vertical clearance around the CPU socket, which will alleviate most installation issues. Potential consumers of the Orochi should be mindful to measure from the top of the CPU to the side case panel to ensure there is enough clearance for the heatsink.

In the ideal situation the 140x140x25mm fan would be mounted on the top of the Orochi heatsink, blowing down, but if case clearance is an issue the fan can attach to either side of the heatsink.

Mil-Spec Aerospace Fan on Scythe Orochi Heatsink - Big just got bigger!
Read the companion article where Frostytech mounts a mil-spec aerospace grade fan on the Scythe Orochi.

Given the massive size of this CPU cooler and number of heatpipes involved, you might assume the Scythe Orochi is a performance heatsink. It's not. The Orochi is made to run silently, and as Frostytech's test results have demonstrated, it achieves that goal while maintaining acceptable thermal results. The large fin spacing also means that with the appropriate ventilation the Orochi could also be used in a passive (fanless) mode.

For anyone that desires virtually silent processor cooling, and has a computer chassis large enough to accommodate it, the Scythe Orochi heatsink delivers.

Related Articles:

The Top 5 best heatsinks for low noise and low temperature are ranked here. For more reviews on the latest heatsinks and cooling solutions, rely on FrostyTech's inventory of 400+ heatsink reviews. Here are a few other articles that you might enjoy as well.

- Xigmatek HDT-S1283 Exposed Heatpipe Base Heatsink Review
- Zalman CNPS9700NT Heatsink Review
- Scythe Shuriken SCSK-1000 Heatsink Review
- Thermalright Ultra 120 Extreme Heatsink Review
- Zalman CNPS8700 LED Low Noise Heatsink Review
- Asus Triton 75 Heatsink Review
- Scythe Zipang SCZP-1000 Ultra Low Noise Heatsink Review



 Previous Page °
Heat Sink Review Index  

Table of Contents:

 1:  Scythe Orochi SCORC-1000 Low Noise Heatsink Review
 2:  360° View - Scythe Orochi SCORC-1000
 3:  Acoustic Sample and Heatsink Sound Levels
 4:  AMD K8 Heatsink Temperature Comparisons
 5: — Intel LGA775 Heatsink Temperature Comparisons

List all Scythe heat sinks that Frostytech tested?

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