XSReviews has reviewed the Coolermaster Z600 CPU cooler
A quote from the article:
>> Coolermaster Z600 Review
With more and more emphasis being put on the cooling proficiency and the quietness of cooling products, many people are beginning to look try different ways to keeping their PC chilled at a reasonable noise level. One of the most popular methods is to purchase a passive cooler, I.E. one without a fan. But can these fanless coolers really live up to their fan-covered ancestors?
That's the question that begs to be answered, so Coolermaster have sent me the Z600 to check out.
>> Coolermaster Z600 Review