Once all the server juice has been filtered by the power filter, its gets converted to the correct voltage by the power converter.

The power converter is actually two identical modules stacked on top of each other, using the standoffs between them as a power relay.

The output of the power supply is 12 volts, 40 amps, for a whopping 480 watts.

As for chips, we find:

STMicroelectronics LM339 quad voltage comparator

Renesas (formerly Intersil) HIP2100 high frequency half-bridge driver

Texas Instruments (formerly Unitrode) UCC2808-1 low power PWM controller

Renesas (formerly NEC) PS2701-1 optocoupler