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 Review, Prometeia Phase Change Cooler, Part I
Attention to details
By: Sverre Sjøthun, March 26, 2003  Print this article

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We have now come to the part where we need to modify the LianLi case itself to make it fit on top of the Prometeia cooler. This should be relatively easy -- drill four holes for the bolts to fasten the LianLi tower to the Prometeia unit and cut a hole where the "thermal bus", as Chip-Con call it, enters the LianLi case. Chip-Con have provided a cardboard template for this job, with the four holes and the cut-out, so that you don't have to worry about cutting the wrong places. Simply place the tower upside down, put the template on the bottom and mark with a nailpunch.

Hole in the bottom of the case with protective plasic strip.

Hole in the bottom of the case with protective plasic strip.


The hole for the thermal bus and three holes for the bolts were drilled when I discovered that something was wrong. The template provided showed all four holes nicely alligned in a square. However, the holes in the top of the Prometeia showed that the hole near the thermal bus should be offset to the rear.

Misalignment of the holes. Template is incorrect, the hole must be further to the back.

Misalignment of the holes. Template is incorrect, the hole must be further to the back.


Showing template misalignment problems

Showing template misalignment problems


The picture below show you the basecooler with the rubber stand-offs to reduce vibration and noise, but it also clealy show you the correct placement of the holes that must be drilled in the bottom of the LianLi case.

Rubber stand-off show us yet again the correct placement of the holes

Rubber stand-off show us yet again the correct placement of the holes


And as if the misalignment problems wasn't enough, the template is to short, so you have to measure wether you should align the end of the template to the front or back of the case. Chip-Con need to make this template long enough to cover the whole bottom of the case, so that there is no doubt where to cut and drill the holes. While this is not a disaster as I managed to pull it of rather nicely after all, I think mistakes like this should not occur.

I also believe the cut-out for the thermal bus should be bigger, as the cut-out suggested by Chip-Con is very narrow and will squeeze the Aeroflex tube they use for insulation around the thermal bus, and may result in condensation problems.

Bolts and rivets securely fixes the LianLi case to the Prometeia cooler

Bolts and rivets securely fix the LianLi case to the Prometeia cooler


Furthermore, the bolts to secure the LianLi case to the Prometeia are too short, and I spent almost an hour to fasten the four bolts -- The rubber stand-offs and the rivets made it extremely hard to even reach the hole in the Prometeia. Very annoying, as 0.5 cm extra would have made the job a whole lot easier.

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  Introduction
  Supercooling – How and why it works
  The concept of phase change cooling
  The Prometeia basecooler
  Attention to details
  Final result and preliminary conclusion


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