Spire was founded in 1991 and has since then been offering a wide range of cooling solutions, PC cases, power supplies and modding accessories. Spire's production facilities are located in China, their corporate office in the USA while they have overseas branches in The Netherlands, U.K., Germany, France, Taiwan, Japan and Brazil.

CDRinfo.com had the pleasure to visit Spire's booth at CeBIT2005 earlier this year and Spire's friendly staff introduced us to the whole range of thermal products they offer. You won't see any extreme solutions, any fancy lights or any impressive designs from Spire. Their coolers are however, known to deliver what they promise.

In this review, we will be testing two of their CPU coolers, the KestrelKing V (SP792B12-U) and the KestrelKing VI (SP779B3-1). Both coolers support the AMD64, Opteron and Sempron platforms (K8).

KestrelKing V (SP792B12-U) - Copper based & Super quiet fan

KestrelKing VI (SP779B3-1) - Copper Base stamping fin

- Features / Specifications

The KestrelKing V works in the simplest possible way that a fan cooler can. There are no heat pipes or any kinds of modifications and patented cooling systems. The fan spins at 2700 RPM +/-10%, producing only 22.0 dBA of noise. On the bottom, you can see the copper base that is common on most coolers.

KestrelKing V (SP792B12-U)

The KestrelKing VI on the other hand uses a more powerful cooler to achieve lower temperatures. It also has a copper base, but in addition to that it uses the Stamped Fin technology, temperature control & auto restart. The fan's rotation speed varies from 3050 RPM to 6000 RPM (+/-10%), producing low noise levels at the slowest rotation speed, but when CPU temperatures increases, the cooler's rotation speed increases, producing higher noise levels than the stock AMD cooler.

KestrelKing VI (SP779B3-1)

Here are the detailed specifications, as provided by Spire:

The KestrelKing series is designed for AMD equipped systems and cannot be fitted on any Intel based models.