A Closer Look:
 

The CPU Cooler

In the last couple years, water cooling systems and components have reached a new level. Many blocks have undergone visual changes rather than internal changes. Of course, looks alone can't always sell a block which is why some blocks have changed in the types of materials used in the fabrication process.

CPU-340 (left) & CPU-330 (right)

Take the Koolance CPU-340 for example. It looks very similar to the CPU-330 which has a really clean, profession look rather than a modified appearance like blocks made with Lucite or acrylic. The major differences are the use nickel materials to fabricate the entire CPU block where as the CPU-330 was a two part nickel and copper base. The new nickel appearance blends the entire block together and saves some cost in fabricating.

Base Comparison

Probably the most important improvement is the change in the block's internal volume. It's a little thinner internal block than the CPU-330 and which increases the liquid's speed just a bit. A little better internal machining with more aggressive internal turbulence as well as water flow should mean the cooled water passes through quicker carrying away the block's heat.

Thinner Block

Two Very Nice Blocks

Finding that right balance can sometimes be tricky. I've seen blocks that were really nice in appearance, but were too small internally that the water passed through too quickly to effectively transfer heat to the water. Other times, the water passes through too slowly and the water became too warm to cool efficiently. This doesn't appear to be a problem for the CPU-340.

Excellent Finish

Also, one thing that Koolance hasn't skipped in many years is the level of lapping or polishing to every cooling block's base. They have produced probably the most perfect polished blocks that I've had the pleasure of testing. They really like the idea of coupling good performance with an excellent presentation.

In terms of included hardware, the mounting method doesn't change from how the CPU-330 worked. The same mounting accessories can be found in the box along with the directions. What you will need to order along with the block is your choice of barbs. Leaving out the barbs cuts costs for you and Koolance. Plus, you aren't limited to whatever comes with the block by default.

Polished Installation Components

If you have a look at the barbs on Koolance's web page, you'll notice that you can choose from quick coupling barbs for a quicker release, or a standard barb with ring nut to very securely hold the tubing in place. Personally, I like the second choice better since you can yank on them and they'll hold true without ever leaking. I recommend the quick release barbs for running through the back of your case's PCI slots to an external radiator or water cooling system.

Add Your Own Choice of Nozzles

Compression Barbs

If you choose to order quick couplers, keep in mind that they restrict water flow a bit. If you have more than 3 water blocks in the system cooling hot components, you might opt for compression barbs to allow water to flow as freely as possible.

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