The Demands of 40 GPU Cores on Display Power
The M3 Max (A2918) packs 40 GPU cores and up to 128GB of unified memory. In High Power Mode, fan curves are delayed to maximize sustained compute speeds, allowing chassis temperatures to climb over 85°C.
Thermal cycles on the logic board substrate can cause display connector pins to expand and contract dramatically.
If your A2918 screen goes black during video exports or 3D rendering while the system stays alive, run the DisplayGuard fix to regulate thermal keepalives.