Akasa AK350 Copper 1U Heatsink Review
In addition to the well known Silver Mountain series of copper/silver
heatsinks, Akasa have a full series of coolers for all types of platforms.
In this review we will be looking at the Akasa AK350 - a full copper, cold
forged pin heatsink for 1U server or SBC applications. 1U heatsinks for the socket A/370 platform are height limited to about 30mm, which means they have to pack a big punch to keep those processors running at operational temperatures.
In the case of the AK350, the entire heatsink
appears to made by cold forged from one small billet of copper. That means the 225 copper pins are part of the base, and not simply pressed into it as some other manufacturers do with aluminum pins and copper base plates.
The main benefit of the fin and the base being the same
physical part, is that heat energy has an easier time traveling up from the base to the pins. If the pins were just inserted into the base, or soldered there, some level of resistance would occur at the metal-to-metal joints.
The copper 1U heatsink is pretty tiny by most standards, and there really
isn't much else to comment on about its construction. With only a few millimeters of space
inside a 1U server, the 10mm fan is pretty much standard, and realistically there
isn't much further to go, outward or upward.
Though, after taking the fan off for a closer look it was
good to see how the clip was designed.
The width of the clip is on average, but rather than
milling out a path for it to fit in, Akasa have cut out the center,
enabling it to slip in between the rows of copper pins. At the fulcrum of the
clip is a cross bar so that the clip will always remain aligned when
you set about installing it on the socket.
It would be
interesting to see what Akasa could develop along these lines for a video card cooler...
but we'll have to wait on that one.