Antec’s SmartPower 2.0 450W PSU
The biggest difference between the original Sonata and the Sonata II is the power supply that the case comes with. The Sonata came with a 380W power supply that offered 35A on the 5-volt rail and 18A on the 12-volt rail. The 450W power supply that comes with the Sonata II has 30A on the5-volt rail and an 32A when adding up the two independent 12-volt rails. These should be ample to power many of the current high end dual core processors that are coming out on the market today and is far better than the original Antec Sonata power supply.
The fact that Antec includes a high quality PSU with their enclosuers only makes them even more of a steal. The Sonata II includes a 450W SmatPower 2.0 power supply. With systems becoming more and more power hungry, 450W is adequate for most, and considering the ~$115 price tag of the Sonata II, the SmartPower 2.0 makes this enclosure a steal.
While I won’t get into the Technical Data, I have found this power supply to work just fine during case testing. Antec PSU’s have always featured rock solid rails and plenty of connectors for whatever I decided to install in my system. The 450W PSU included with my review sample had 4 SATA connections, as well as a PCI-E connection. Two features i really appreciate are the fan management system, which spins one fan up at startup, and the second only when the PSU needs it, and the Smartpower 2.0’s backwards compatibility with 20 pin power connector motherboards by way of a detachable section of the power connector, meaning you don’t have to buy a special adapter if you plan on using this enclosure or PSU with an older system.
A couple of things I’d like to see is a second PCI-E connector (for SLI systems) and a much better cable management system. My PSU’s wiring was a mess as the wires left the housing, and the wires themselves were only managed by a handful of zip ties. I’d happily pay a little extra for a much cleaner wiring job and some sleeves over each wire.
That being said, the SmartPower 2.0 is about the same as every other Antec PSU I have used, a very good power supply. The complaints I had aren’t deal breakers, and simply add a little work to a system setup for the end user.