Protection Features Evaluation

 
Over current protection is set way to high at 5V. It should be lower at 3.3V and 5VSB as well (<130%). On the other hand, over power protection works well, and the same goes for over temperature protection.

DC Power Sequencing

According to Intel's most recent Power Supply Design Guide (revision 1.4), the +12V and 5V rails must have voltages equal to or greater than the 3.3V rail's output at all times, during power-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.


We noticed some high spurs with the average EMI detector, of which some even surpassed the corresponding limit.


No problems with the peak detector.