Thanks for the replies! From the switch spec sheet in table 5 "Power Specifications" under the conditions: "100% Throughput (With Maximum Possible PoE Loads)", the measured power consumption for the switch itself is: 502 watts Under this condition: Switch itself + 24 ports of EPoE power sourcing 502 watts + (24 * 20 watts) 502 watts + 480 watts = 982 watts 982 watts > 750 watt rating of the power supply So what happens under these conditions? Even for this load condition for normal PoE (15.5 watts per port) from the spec sheet Table 5 "Power Specifications" again: Measured Power Consumption is: "502 Switch and 372 PoE Power" 372 = 15.5 * 24 So even under this condition, power consumption is (502+372) = 874 watts, which appears to be above the 750 watts available.
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