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Xigmatek Prime SD1484 Heatsink Review
Xigmatek Prime SD1484 Heatsink Review
Abstract: On the heatsink test bench today is Xigmatek's Prime SD1484 heatsink which features a few notable changes to the standard, stock tower heatsink Xigmatek offers. For starters, the edges of the aluminum fins are squished slightly to form a blunt knife edge to reduce air flow resistance - Gigabyte tried this in 2006 with good results.

 Manufacturer  Category  Published  Author 
Xigmatek   Cooling / Heatsinks   Oct 21, 2011   Max Page  

Home > Reviews > Page: 360° View - Xigmatek Prime SD1484 Heatsink

360° View - Xigmatek Prime SD1484 Heatsink

Information on Frostytech's test methodology is available here.

The 140mm PWM fan spins at 1200-800RPM and draws power from a standard 4-pin PWM motherboard fan header. Notice how the fan is much larger than the aluminum fin stack. Each of the four 8mm diameter copper heatpipes extends from the base where it is exposed, to the top of this 167mm tall heatsink. Each aluminum fin measures 0.5mm thick and are spaced ~2.0mm apart.

The Xigmatek Prime SD1484 heatsink stands 167mm tall, the tower is 62mm wide without a fan and the first fin is elevated 43mm above the CPU socket for clearance. Heat pipes are positioned 9mm on center at the base plate and rise up apart 48mm and 91mm respectively. The base incorporates an 11mm thick aluminum section to provide support for clamping.

The usable area of the Xigmatek Prime SD1484's exposed heatpipe base is 42x42mm in size. Heatpipes are positioned in the path of highest airflow from the fan, the rubber bracket tends to bend in the top and bottom-most aluminum fins a little.

Base Finish and Flatness

Flipping a heatsink over to inspect the business end is often a simple indicator of overall cooler quality. More practically speaking, a heatsink is in many ways only as effective as the contact it makes with the processor - the flatter and smoother the better. Base finish is one of the criteria that Frostytech measure in the course of evaluating heatsinks, and it involves two distinct aspects. Surface Finish is the first; this is calculated with the aid of Surface Roughness Comparator that has a cross section of common machine surface finishes and their numerical surface roughness equivalents in microinches. The second is Surface Flatness. This is tested with an engineers straight edge or proven flat surface, in two axis.

Most exposed heatpipe base heatsinks are machined flat, the Xigmatek Prime SD1484 is not. Instead of a precision base it has a sanded base surface finish which is somewhat convex in both axis. The surface roughness of the base is approximately 16 microinches, which is considered good.

Next up, Frostytech heatsink sound level measurements...

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Table of Contents:

 1:  Xigmatek Prime SD1484 Heatsink Review
 2: — 360° View - Xigmatek Prime SD1484 Heatsink
 3:  Heatsink Sound Level Comparison
 4:  AMD Heatsink Temperature Comparisons
 5:  Intel Heatsink Temperature Comparisons

List all Xigmatek heat sinks that Frostytech tested?

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