Skip to main content

Antec Earthwatts Gold Pro 750W PSU Review

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

Image 1 of 3

Image 2 of 3

Image 3 of 3

Efficiency Chart

The efficiency sweet spot is between 150W and 450W at +12V, with load on the minor rails staying below 60W.

Ripple Charts

Image 1 of 4

Image 2 of 4

Image 3 of 4

Image 4 of 4

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).

Image 1 of 11

Image 2 of 11

Image 3 of 11

Image 4 of 11

Image 5 of 11

Image 6 of 11

Image 7 of 11

Image 8 of 11

Image 9 of 11

Image 10 of 11

Image 11 of 11

Electrolytic capacitors close to the +12V heat sinks get quite hot, and the same goes for polymer caps in the same area. Of course, those polymer caps are much more resilient in the presence of high operating temperatures. That doesn't mean they're immune to the effects of heat, though.


MORE: Best Power Supplies


MORE: How We Test Power Supplies


MORE: All Power Supply Content

  • Dark Lord of Tech
    Great review as usual!
    Reply
  • dcointin
    You always have the most thorough PSU reviews, very well done once again!
    Reply