SilverStone once again has managed to push out yet another incredibly reliable product that raises the performance bar. In fact, the SilverStone Zeus ST75ZF is undoubtedly one of the top performing power supplies that we at Phoronix have ever come across. While no SLI or CrossFire setup was used in our tests due to the Linux compatibility, all of the voltage rails tested -- including all four +12V channels -- were incredibly stable and very close to their theoretical ideals; voltage fluctuation was also at a minimum. When it came to noise with the ST75ZF, as the power supply had only packed in one 80mm fan, we had not found the noise level to be disturbing. The heat output was respectable considering what is inside the ST75ZF, and it was not too scolding. When it comes to the aesthetics of the power supply, the ST75ZF continues to carry on the subtle appearance of the Zeus series with the black facade and only the motherboard connections being sleeved. The only possible areas for improvement we had found would be to perhaps sleeve all of the cables or resort to a modular design like the SilverStone Strider ST60F. Other ZT75ZF features include active power factor correction, up to four +12V PCI-E connections, SSI and EPS 12V compliance, and industrial class components.
When it comes to the cost of the SilverStone Zeus ST75ZF, we have seen it retailing in the $180 to $200 USD price-range, which truly is not that expensive considering the ST65ZF is still selling for around $140-160 and there are other high performance ~500W PSUs selling for a common $100 price point. The SilverStone Zeus ST75ZF is leaving Phoronix with our top honor as it provides an amazing amount of features backed by top-notch performance in all of our tests. Whether you are on your next big build with dual or quad GPUs and dual CPU cores, or hope to upgrade to a power supply that can be used for years to come, the SilverStone Zeus ST75ZF is certainly worth further investigating. As this SilverStone Zeus PSU is brand new to the market, it has yet to be officially certified by NVIDIA for Scalable Link Interface or ATI with CrossFire. From what we have seen today, it should only be a matter of time before the ST75ZF is accredited with these certifications. Note: The unit tested today was from SilverStone's first batch, and in the next revision will be an all black fan grill, all cables sleeved, and it will feature four dedicated PCI Express power connectors.
UPDATE (06-20-06): SilverStone has just passed along word that the Zeus ST75ZF is capable of providing 950W continuously in some environments, more can be learned here.