CPU-ASIC Mutual Diagnosis Fault

What does CPF09 mean?

Control circuit failure or damage involving a mutual diagnosis fault between the CPU and ASIC. This is a critical internal hardware fault affecting the core processing units and indicates a severe internal malfunction.

Complete Troubleshooting Guide

1. 1

   Cycle power to the Drive to attempt a temporary reset.

2. 2

   Replace the Drive, as this indicates damage to the core control circuit hardware.