Silverstone Decathlon DA700 Super Silent Power Supplyby Christoph Katzer on April 22, 2008 12:00 AM EST
- Posted in
Efficiency and PFC
The efficiency didn't get above 85%, which is strange as we expected a little more than that. However, we don't want to make a big deal out of it since 85% is a very good result, even if it's common with today's high-end power supplies. The good thing is that the efficiency stays high for a long period under 230VAC, but as the graph also shows you need to pull at least 200W to reach 83% or higher efficiency. The DA700 also works well from 250 to 650W with a minimum input voltage of 120VAC. With 90VAC this power supply doesn't work as well, peaking at82% and 350W and staying above 80% for about half of the rated output range.
The power factor correction once again performs best with lower input voltages. People in Europe might need to accept much lower grades, though the results here are normal for an active PFC unit.