Category Archives: Tech


How much CO2 could the World’s Most Powerful Computer save with 2-phase immersion cooling?

As you may have read in the news, the 41st semiannual TOP500 list of the world’s most powerful supercomputers was announced a few days ago at the 2013 International Supercomputing Conference in Germany. Weighing in at a hefty 33.86 Petaflops on the Linpack benchmark, China’s Tianhe-2 Supercomputer packs quite the computing punch, and now holds the title of “World’s… Read More



Photos of Immersion Cooling Prototypes

We’ve been asked for a few real pictures of our immersion cooling systems. While our rack mountable projects are still confidential and we can’t publish any photos, have a look at the gallery in the Building Immersion-1 page. And while we do indeed use glass for small immersion cooling demo setups, rest assured that our finished immersion… Read More



Understand Immersion Cooling (PDF presentations)

Pictured here is the Immersion-1 FPGA cluster and Xeon Phi Immersion Cooling Concept shown at the HPCC Supercomputer Conference 2013. We’ve been working behind closed doors for a long time, but only recently we have been asked to come out and prepare a couple of presentations about the advantages and benefits of passive 2-phase immersion cooling,… Read More



Intel’s Xeon Phi Heat Transfer Dilemma

We’ve been spending all of last year around FPGA devices, but lately we spent a bit of time with Intel’s Xeon Phi coprocessor. What took 9,298 CPUs and occupied 72 server racks in 1997 now fits on a tiny little chip the size of an iPod Nano. Intel showing off Xeon Phi aka Knights Corner This new chip,… Read More



Heating the office with FPGAs and servers

If you look around a typical Hong Kong office during the winter season you’ll often find people in down-feather jackets sitting around old-style (and energy hungry) blow heaters and electrical oil radiators (2000W units are very popular in HK). This winter however, our office was nice and cosy and T-shirts were the norm. With 70kW… Read More