Let's identify the ICs on the rear of the logic board:

LGA 2011 (Socket R) CPU socket

Microchip EMC1428 8-Channel Temperature Sensor Monitor

International Rectifier IR3575 Synchronous Buck Gate Driver with integrated MOSFET and Schottky diode

NXP PA9517A Level Translating I2C-Bus Repeater

Texas Instruments 58872D

The front side of the logic board:

Intersil ISL 6367 Hybrid Digital Dual PWM Controller