Protection Features Evaluation

The OCP triggering point is set too high at +12V, which allows the voltage to drop too low. If I were to put a lot of stress on this rail, the PSU would likely fail in the end. The same goes for the over power protection—it is also set too high.

DC Power Sequencing

According to Intel's most recent Power Supply Design Guide (revision 1.4) the +12V and +5V rails must maintain voltages equal to or greater than the +3.3V rail's output at all times. For our first measurement, we turn the unit off and switch it back on without any load on any of the rails.

EMC Pre-Compliance Testing – Average and Peak EMI Detector Results

Electromagnetic Compatibility (EMC) is the ability of a device to operate properly in its environment without disrupting the proper operation of other close-by devices.

Electromagnetic Interference (EMI) stands for the electromagnetic energy a device emits, and it can cause problems in other close-by devices if too high.



With no spurs exceeding the limits, everything is fine here.