Danamics – LMX Superleggera review

CPU cooler with liquid metal technology
Photo of Danamics – LMX Superleggera

At first glance the Danamics LMX Superleggera looks like a conventional CPU cooler, however appearances are deceptive.

Yes, it’s big, standing 170mm high and yes, it’s heavy at 1.2kg, but we’re familiar with the idea that a large cooler is a good way of dealing with an overclocked CPU. What sets the LMX Superleggera apart from the competition is the technology that Danamics uses to transfer heat from the CPU base plate to the finned body of the cooler. Although those five 6mm heatpipes look like every other heatpipe you have ever seen, they work on a completely different principle.

Regular heatpipes contain fluid that evaporates and condenses in a continuous cycle that moves heat from the hot CPU to the body of the cooler which is, um, cooler. Danamics has filled the heatpipes with a liquid metal sodium-potassium alloy that is actively pumped around a cooling circuit by the Power Booster 2 unit. This is a hefty finned aluminium item that is installed in a 3.5-inch drive bay and which connects electrically to the LMX Superleggera cooler and also to the power supply of your PC.

We had originally intended to test the Danamics cooler on a toasty Core i7 system, as we had an Intel DX58SO motherboard on the test bench, but we ran into an insoluble problem. The Intel motherboard has the power regulation hardware arranged in an arc around the CPU socket, which means that the Danamics mounting brackets cannot be installed. In fairness to Danamics, the Intel layout differs from every other motherboard that we have seen, but there’s no avoiding the fact that this is a problem.

Happily we had also been supplied with a set of AMD mounting brackets, so we were able to switch to an Asus Crosshair III Formula motherboard along with a Phenom II X4 965 CPU. We were lucky to have both AMD and Intel mounts, as the £99 cost of the LMX Superleggera cooler only includes one type of mount, which you need to specify when you place your order.

Installing the base plate for the Danamics was straightforward and we were then able to clamp the cooler solidly in place. The final part of the installation is to snap one or two 120mm fans into place, however they are not included in the package so it’s your choice whether you choose fixed speed fans or variable PWM items.

Buying the fans is likely to add £20 to the cost of the cooler and the cost could rise by as much as £40 if you choose high-end units. This makes the LMX Superleggera pretty darned expensive.

The pump in the cooler operates on an electromagnetic principle so there are no moving parts, however there is a faint electrical noise that suggests a transformer is working inside the Power Booster 2 unit.
We had great hopes for the LMX Superleggera and hoped that the combination of novel technology and massive price would deliver something exceptional, but this was not the case.

While the Danamics had no trouble keeping our Phenom II X4 965 CPU under control at its stock speed of 3.4GHz and also overclocked to 3.74GHz, the performance was no better than a regular air cooler. Both the Akasa Venom and Coolink Corator DS kept the CPU five to ten degrees cooler than the Danamics could manage and they are also considerably cheaper.

Company: Danamics

Contact: +45 70 20 94 30

Danamics has taken a radical approach with the LMX Superleggera by employing a sodium-potassium liquid metal coolant that is circulated by an electromagnetic pump. The problem is that the cost is very high yet the use of this technology doesn't deliver any obvious benefit.