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Thermalright Ultra-120 Low Noise Heatsink Review
Thermalright Ultra-120 Low Noise Heatsink Review
  98%   
Abstract: UPDATED! The Ultra-120 is a large heatsink, but one which can be operated very quietly while disbursing the high heat loads from modern-day dual core processors.

 Company link  Category  Published  Author 
Thermalright   Cooling / Heatsinks   Jul 02, 2007   Max Page  
Home > Reviews > Page Title: 360° View - Thermalright Ultra-120 Heatsink

360° View - Thermalright Ultra-120 Heatsink
Information on Frostytech's test methodology is available here.
The Heatsink Fan:
The Thermalright Ultra-120 heatsink is built to work with a 120x120x25mm fan that spins in the region of 1400-1600RPM. Anything big, slow, and quiet will suit the Ultra-120 just fine. Owing to the design of the heatsink, and the fact that the fan is clipped on with wires, there is absolutely no protection from errant wires being sucked into the fans' impeller. Bottom line - make sure you have your wires well routed when installing this heatsink in your chassis. The anti-vibration strips work their magic to keep metal fins from rattling, and as you can see the fin pitch is quite large. Each nickel plated aluminum fin measures 0.3mm thick, and is spaced 1.7mm apart from the next. Over all there is 127 x 118mm worth of cooling fin, and that is where the Thermalright Ultra-120 gets its strength from. The four nickel plated copper heatpipes are 6mm in diameter, and extend from the base up through all the fins. All joints are soldered.

Heatsink Top:
Looking from the top down, we can see how Thermalright have modified the aluminum cooling fins with winglets. The leading and trailing edges are alternatively bent 15° up and down. When a 120mm fan is installed, a 5mm plenum is created behind it owing to the curvature of the fins. The four 6mm diameter copper heat pipes are positioned towards the outer edge of the cooling fins. This puts them in the vicinity of the highest airflow from the fan, leaving the center portion of the cooling fins open where there is the least amount of airflow. Each fin measures 132 x 60mm in size.

Heatsink Side A:
The Thermalright Ultra-120 heatsink is only 60 mm thick, but it stands 160 mm tall. The cooling fins are elevated above the socket 43 mm for clearance of adjacent capacitors, northbridge heatsinks, or what have you. The four 6 mm diameter copper heat pipes are positioned side to side on the copper base block. This ensures that the maximum amount of heat is absorbed from the CPU integrated heat spreader, and transferred to heatpipes in as short a distance as possible. The base is capped off with a 50mm wide aluminum section that provides rigidity and strength for the CPU clamping bracket. There is a small 8mm round hole in the top of this block to align the brackets into, and it also prevents the heatsink from sliding out from underneath of its clip.

Heatsink Base:
The nickel plated copper portion of the mounting base measures 40 mm by 39 mm. The overall base measures 50 mm by 40 mm. the copper base averages 2mm thick over the heat pipes, in both sections are soldered together for optimal thermal transfer. The copper is machined flat, and very smooth. Surface roughness is on the order of ~8 microinches, which is considered excellent. The aluminum support is slightly proud of the copper base, but at least the surface is perfectly flat both axis.



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Table of Contents:

 1:  Thermalright Ultra-120 Low Noise Heatsink Review
 2:  Socket AM2/939 Heatsink Mounting Considerations
 3: — 360° View - Thermalright Ultra-120 Heatsink
 4:  Acoustic Comparisons and Base Surface Quality
 5:  Final AMD/Intel Heatsink Temperature Comparisons

List all Thermalright heat sinks that Frostytech tested?

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