U1
IBM Espresso
CPU
Main CPU
About this component
Espresso is the Wii U's CPU: three PowerPC 750-derived cores with an unequal L2 split (2 MB on one core, 512 KB on each of the others). It is the small die on the multi-chip module beside Latte, under one heatsink. Because CPU and GPU share the module, a failure of either means replacing the whole MCM from a donor board. It also runs Wii software in a compatibility mode.
What it does on this board
Tri-core PowerPC CPU @1.24GHz.
Pinout & readings
No pinout or reference readings yet — these show what each pin does and what a healthy part should measure.