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Cross-Load Tests And Infrared Images
Our cross-load tests are described in detail here.
Load Regulation Charts
Efficiency Chart
Efficiency is very high for much of the PE-750's operational range. With some tuning and a lower capacity rating (600 W, perhaps), this platform could meet the 80 PLUS Titanium requirements.
Ripple Charts
Infrared Images
First we removed the top cover and fan. Then we applied 600 W of load for around five minutes before taking photos of the PSU's internals with our modified FLIR E4 camera that delivers 320x240 IR resolution (76,800 pixels).
Without active cooling, a 600 W load results in high internal temperatures, as expected. The PSU's hottest parts appear to be the FETs on the DC-DC converters, which generate the minor rails (they're typically cooled by the fan). Those FETs are rating for high operating temperatures though, so don't worry too much about them.
