The motherboard is free from the headset! Here's what we found:

Toshiba TC358870XBG HDMI interface bridge

Nuvoton NUC123SD4SN3 NUC123 series ARM Cortex-M0 microcontroller

ROHM BD2802 RGB LED driver (x3)

Wolfson WM1801G (likely an audio codec, as found in the DualShock 4 controller)

Parade Technologies PS8203 3.0 Gbps HDMI level shifter

Texas Instruments S1L 621 APGH (likely a power supply module for the AMOLED display)

Rohm BR24T16-W 16 Kb Serial EEPROM Memory