Thortech Thunderbolt 850 W Power Supply Review
Conclusions
Contents
The Thortech Thunderbolt 850 W can really deliver its labeled power at high temperatures, provides high efficiency between 86.3% and 90.3%, and has very low ripple and noise levels. The cable configuration is very good, with 12 SATA power connectors with an above-the-average distance between them.
The main problem with the reviewed unit is its +3.3 V output, which dropped below the minimum allowed at 850 W. (Interestingly, Jonnyguru.com saw a similar problem with the 1,200 W version of this unit, probably indicating that this is a design flaw.)