Protection Features Evaluation

The OCP is set high on all rails, especially on the minor rails, even though there is no point at all for such high amperage on those rails. The OPP is also set quite high, which is not surprising because the OCP triggering points are high. All other protection features work well.

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 (start-up and regular operation). 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.