Thermalright Venomous X Silent Edition CPU Cooler

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Thermalright Venomous X Silent Edition CPU Cooler

May 14, 2011 by Lawrence Lee

Thermalright Venomous X Silent Edition
CPU Cooler
Street Price

We've encountered many PC products over the years that have been described by its manufacturer as "silent" but as silence is defined as the complete lack of noise, most inevitably fall well short of the promise. Once you see a fan, at best it can be described as is "inaudible" or varying degrees of "quiet." Present us with a "Silent Edition" CPU cooler with not one, but two fans, and we could suffer from a vertigo attack from the amount of eye-rolling required. That being said, Thermalright's Venomous X Silent Edition might just have what it takes to be the quietest and most effective CPU heatsink to make this claim.

The package.

It is unclear how the retail version of the Silent Edition will be packaged. Though sold as a single unit, our sample arrived at our door in separate pieces, one unusually decorative box for the heatsink, one box for each 600 RPM fan just as they are sold in retail channels, and even individual cardboard containers for two plastic fan holders. The fan cages seem to a redundant inclusion as the heatsink ships with the traditional metal clips as well, which are superior in that they allow the use of 14 cm fans (provided they have 12 cm mounting holes). The Silent Edition also ships with a 4-pin PWM fan splitter cable to run both fans off the same header, though they are 3-pin models and thus lack PWM support.

Original Ultra-120 eXtreme on top, Venomous X on the bottom.

The Venomous X is not a new heatsink, having been made available in several forms for over a year. If you're not familiar with it, it is very similar to the Ultra-120 eXtreme in design and composition. The overall dimensions are almost identical though the eXtreme is 5 mm wider as the center portion of the heatsink juts outward slightly. The shape of the fins on the Venomous X are also more stylized and its heatpipes are arranged in a different pattern.

Ultra-120 eXtreme on the left, Venomous X on the right.

The Venomous X also appears to have a larger fin-stack, but the total surface area is about the same. The spacing between the fins is wider than the eXtreme, which should improve performance with low speed fans like the 600 RPM models included with the Silent Edition. In addition there are twice as many of the small tabs on each fin that provide stability and ensure equal spacing.

Thermalright Venomous X Silent Edition: Key Features
(from the product web page)
Feature & Brief
Our Comment
Patented multiple support pressure vault bracket system, allow users adding pressure to the bracket system (40~70 lbs. pressure system for Intel CPU user only), and have a more efficient and secure mounting. The mounting system is critical for a heatsink's performance.
Include AMD Socket AM2/AM3 Bracket system. Sometimes omitted on CPU coolers.
Mirrored copper base increasingly upgrade the quality and the performance of the heatsink. The base surface doesn't need to be polished perfectly to perform well, but it's a nice visual.
Special bent winglet design, allows hot air to pass the heatsink more rapidly. A design element that debuted in the original Ultra-120.
Heatsink are all nickel plated to ensure the best quality and performance and could last for years. Most high end heatsinks are nickel plated to prevent oxidation.
Soldered heatpipes, copper base and fins, to ensure the best thermal conducting efficiency. Solder helps transfer heat between the various components of the cooler.
Six sintered heatpipe design, all heatpipes are nickel plated.To slow the oxidation deterioration to the heatpipe, to ensure longer usage and performance of the heatsink for the cpu. Just like the Ultra-120 eXtreme, the Venomous X sports six heatpipes.
Including FDB 600RPM ultra low noise Fan Cover set*2 and Chill factor III thermal paste. At 600 RPM, the included fans should be close to silent.
Convex copper base design, to ensure the Highest thermal conducting thermal efficiency between the CPU and the heatsink. Like previous Thermalright heatsinks, the base is slightly convex to achieve greater contact with the center of the CPU.

Thermalright Venomous X Silent Edition: Specifications (from the product web page)
Size: Length 127mm x Width 63mm x Height 160mm
Weight: 755 g (excluding fan and bracket system)
Heatpipe: 6mm sintered heatpipe *6 units
Copper base: C1100 pure nickel plated copper base, with ultra-shine mirrored surface.
Dimension: 120*120*25mm
Bearing Type: FDB (Fluid Dynamic Bearing)
Rated Voltage: 12.0 VDC
Operating Voltage Range: 10.8~13.2 VDC
Rated Current: 0.130 Amp +10% MAX /0.11AMP
Rated Power: 1.56 watt
Rated Speed: 600 RPM ± 10%
Airflow: 30.5 CFM
Noise Level: 13.1 dB/A
Life Expectancy: 60000 HOURS AT 40°c / 65%
Net weight: 156 GRAMS
Connector: 3 pin

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