Installation:
Installation of the Antarctica is not simply pop and go, it does require a bit of work but if you follow the instructions you won't have a problem.
The first step is to place a nylon washer onto each of the four screws then insert them through the HSF mounting holes in your motherboard. Another nylon washer is then installed on each screw from the top side of the motherboard. You then thread the 4 guide rods onto the screws (one per screw).

(First steps of installation, click to enlarge)

After you have put a thin layer of thermal compound on your CPU, you then put the water block on, making sure that each guide goes through the proper holes. Once the block is sitting properly on your CPU, you then place a spring and washer and thumbscrew onto each guide. The final step is to then hand tighten each of the four thumbscrews while making sure not to over tighten any particular one. Tighten each of them a little bit at a time to maintain even pressure on the CPU.

(Installed and piped up, click to enlarge)

Testing System:
AMD 1900+ CPU
Gigabyte GA-7VRXP Motherboard
GeForce FX 5600 Video Card
HWLabs Black Ice Pro Radiator
Via Aqua 1300 Pump
Delta 120mm Fan on Cooling Radiator
Testing:
Since this is our first water block review, the Antarctica's temperatures will be compared to those of a high end air cooler just to give you a figure for it's performance.
For testing we took the load and idle temperatures of our CPU with the Delta fan running at 7V and with the Delta fan running at the full 12V. The CPU is being loaded with Prime 95 for an interval of 15 minutes.

(Temperature Chart in Celcius, click to enlarge)

As the above chart shows, we achieved very reasonable temperatures from the Antarctica. When the Delta 120mm fan was operated at the full 12V there was a fairly reasonable drop in load temperature but we did not see the idle drop by very much. The idle dropped by about 1-2C.

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