Nepartak (S983)

The box of the second new cooler we are discussing today – XIGMATEK Nepartak – is a little bigger in size, but is also made of cardboard and has a small cut-out window on the side:

The accessories bundle is exactly the same as the one that comes with Cobra. The only difference is the thermal interface: there is a pack of SilMORE paste instead of Stars:

The cooler name – Nepartak – is the name of a tropical cyclone that hit the Philippines in 2003. I haven’t checked what was so special about that particular cyclone, but the cooler itself looks quite common:

It is a tower-cooler measuring 99.5 x 62.7 x 134 mm and weighing only 634.4g, which is not too much according to today’s standards. 42 aluminum plates, each 0.385mm thick sit on three copper heatpipes, each 8mm in diameter:

The gap between the heatsink plates is 2mm and the calculated effective cooling surface of the heatsink is 4,313sq.cm. Speaking of the heatsink peculiarities, I have to point out that its plates are slightly inclined to the bottom along the airflow route and there are short slits along their edges:

These slits are most likely made to create turbulent airflow on leaving the heatsink. But why would they need it, is fairly hard to tell. Looks like XIGMATEK engineers considered these slits to be really important if they decided to add one more operation to the manufacturing process.