Protection Features Evaluation

MEIC has tuned the new generation P-GM and UD units, vastly improving their protection features. The OCP triggering points are ideally set on all rails, and the same goes for OPP. Moreover, the PSU's over temperature protection is alive and kicking.

DC Power Sequencing

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



The 3.3 V rail is always lower than the other two 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.



Four spurs go over the limits with the average EMI detector, but everything was fine with the Peak detector.