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| Sun Blade 6000 Modular System ### Service Manual

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#### Power-On Sequence

When the chassis is first connected to AC power, the following sequence of events starts:

1. The power supplies produce 3V auxiliary standby power.

2. The CMM receives 3V auxiliary standby power and comes out of reset.

3. The CMM starts to boot and sets the OK LED on the CMM to a slow blink state.

4. When the CMM has booted, the CMM sets the OK LED on the FIM and CMM to the standby blink state, indicating that the chassis is now ready for full power-on.

5. The power behavior of the system depends on which model you have.

   - If you have an A90-B chassis, power is automatically distributed to the modular system.

   - If you have an A90-D chassis, the chassis powers on to the last power state of the chassis.

     If the chassis does not fully power on after reaching standby power, apply full power to the chassis through Oracle ILOM with the following command:

     `start /CH`

6. When the chassis has been fully powered on, the OK LED remains illuminated.

##### Related Information

- Verify Modular System Functionality

- Apply Power to the Modular System

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