Sorry to hear about the noise situation. I'm not sure of a way to lower the noise, but if you think it is unusually high, you may want to check if the fan vents are covered / stuck with any debris.
Here are the Max power consumption numbers:
Input Voltage: 100 - 240 VAC 50-60Hz
Max Consumption:
Passive cables: 136W
Active Cables: 163W
Optical Cables: 168W