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Troubleshooting General/ Logic Board Troubleshooting - 15
Resetting the Cuda Chip: Power Macintosh G4 (PCI
Graphics)
The Cuda is a microcontroller chip on the Power Macintosh G4
(PCI Graphics) logic board. Its function is to
• Turn system power on and off.
• Manage system resets from various commands.
• Maintain parameter RAM (PRAM).
• Manage the real-time clock.
Many system problems can be resolved by resetting the Cuda chip
(see the Symptom Charts for examples). Press the Cuda reset
button on the logic board to reset the Cuda chip. The Cuda reset
button is located on the logic board to the right of the battery.
Refer to the Logic Board Diagram earlier in this chapter for
location information. If you continue to experience system
problems, refer to “Resetting the PCI Logic Board” in this
chapter.