The MCW5000 proved to be quite a solid water-block today. Not only did it outperform the best air coolers we had, but it also improved on the older MCW462-U waterblock.
Obviously, performance will depend on a number of factors. The water-block will accommodate 3/8" OD tubes, but doing so will restrict more water flow than ½" OD tubes. A quality pump is a must have, as well as a good sized radiator. I didn't include the numbers earlier, but the MCR80-F Radiator is just not going to cut it if great cooling is what you're after. Our temperatures with that radiator were about 4°C to 6°C higher than the numbers presented today with the Rad 676.>
Construction is typical of Swiftech, which is top notch. The base of the water-block is extremely well lapped, and being almost 100% metal based (since the quick connect fittings are plastic) will insure that the water-block will last. Installation is very easy, and will not require you to remove the motherboard for either an Intel or AMD installation.
Pros: Great construction quality, easy installation, and great performance.
Cons: Plastic fittings could crack if you're careless.
Bottom Line: For effective water cooling, there are a lot of parts you'll need. A good pump, and radiator are very important, and personally, I wouldn't go with anything less than ½" OD (3/8" ID) tubing. Finally, a good water-block is very important, and we're putting the MCW5000 on our short list.
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