Apple powermac g3 blue.white Service Manual

 Basics

The Cuda Chip - 39

The Cuda Chip

The Cuda is a microcontroller chip. Its function is to:

• Turn system power on and off.

• Manage system resets from various commands.

• Maintain parameter RAM (PRAM).

• Manage the Apple Desktop Bus (ADB).

• Manage the real-time clock.

Many system problems can be resolved by resetting the Cuda 

chip (see Symptom Charts for examples). Press the Cuda 

reset button on the logic board to reset the Cuda chip. (The 

Cuda reset button (S4) is near the battery. See “Logic Board 

Diagram” earlier in this chapter.) If you continue to 

experience system problems, refer to “Resetting the Logic 

Board” in the Troubleshooting chapter.