Gigabyte MZ32-AR0 sensor locations

Does anyone know the physical locations of the various temperature sensors on the MZ32-AR0 motherboard? The manual has nothing. There are obvious temperature sensors under each m.2 slot but there’s only one temperature sensor labeled “M2” in the BMC interface.

ipmitool sensors gives the following temperature sensors:

CPU0_TEMP
DIMMG0_TEMP
DIMMG1_TEMP
CPU0_DTS
M2_G0_AMB_TEMP
MB_TEMP1
MB_TEMP2
PSU1_HOTSPOT
PSU2_HOTSPOT
VR_P0_TEMP
VR_DIMMG0_TEMP
VR_DIMMG1_TEMP

CPU0_DTS seems to be CPU0_TEMP subtracted from 100 which is weird. DIMMG0 and DIMMG1 would seem to be the temperature readings of the DIMMs in the G0 and G1 slots, but G0 is not populated, and there aren’t readings from any of the other DIMMs. M2_G0_AMB_TEMP is I assume one of the m.2 sensors but which one, and where’s the other one? And what are MB_TEMP1 and MB_TEMP2 indicating?