Two Big Top-downers: Big Typhoon VX & Xigmatek HDT-D1264

Cooling
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HDT-D1264 PHYSICAL DETAILS


HDT-D1264

At first glance, two physical features of the D1264 stand out. The heatpipes which curve inward at the bottom, presumably to avoid contact with larger northbridge and VRM heatsinks, and the trenches running across each side of the fin edges to accommodate the rubber fan isolators.


HDT-D1264

The fins, at the top of the heatsink, slope downward and out, to catch any airflow that may leak past the sides of the fan isolators. At the bottom, the fins curve inward, with less area in the middle and more on the sides.


From the side.

The heatsink does bend downward slightly as if the fins and fan are too heavy for the heatpipes to hold its mass completely upright. The fin spacing is tight, but nowhere near as tight as the Big Typhoon.


Naked.

Underneath the fan, the top of the fins slope inward toward the center, likely to reduce noise further and to direct more air below the fan's dead-spot. Rubber fan isolators protrude upward — it's Xigmatek's fan mounting method of choice and is ours as well.


HDT-D1264 mounting plate

The mounting plate has two screw holes for mounting the LGA775 pushpins and two guides cut down the middle for the AMD tension clip.


The base.

The base is the same as the previous Xigmatek heatsinks we've reviewed. The bottom of the heatpipes are flat and smooth, but the points of separation between the heatpipes and mounting plate are clearly noticeable, both visually and by touch.



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