Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Cross-Load Tests & Infrared Images
Our cross-load tests are described in detail here.
To generate the following charts, we set our loaders to auto mode through our custom-made software before trying more than 25,000 possible load combinations with the +12V, 5V, and 3.3V rails. The load regulation deviations in each of the charts below were calculated by taking the nominal values of the rails (12V, 5V, and 3.3V) as point zero. The ambient temperature was between at 30°C (86°F) to 32°C (89.6°F).
Load Regulation Charts
Efficiency Chart
Although efficiency is high across the board, the sweet spot falls between 150W and 340W.
Ripple Charts
Infrared Images
We applied half-load for 10 minutes with the PSU's top cover and cooling fan removed before taking photos with our modified FLIR E4 camera that delivers 320x240 IR resolution (76,800 pixels).
Temperatures inside the BF650G are low. BitFenix places the secondary side's electrolytic caps away from hot components, so they never overheat.
FETs on the DC-DC boards get to around 60°C, while the bulk cap runs cool (operating at close to 40°C).
MORE: Best Power Supplies
MORE: How We Test Power Supplies
MORE: All Power Supply Content
