Inside the Sun Fire 880 system, status LEDs provide power, fault, and hot-plug indications for each PCI card slot. Each LED is labeled with an icon as shown below:

The following quick reference tables summarize how to interpret the LEDs for various hot-plug scenarios. In each table, the LED states are represented as follows:

| Step | 
 | Description | 
|---|---|---|
| 1 | 
 | Slot occupied; Power LED on; card is logically connected | 
| 2 | 
 | Start hot-plug removal via push button or cfgadm command | 
| 3 | 
 | Fault LED blinks during unconfigure operation | 
| 4 | 
 | Operation successful; OK-to-Remove LED turns on | 
| 5 | 
 | Remove card; OK-to-Remove LED turns off | 
Table 2-2 Removing a Card - Card Busy
| Step | 
 | Description | 
|---|---|---|
| 1 | 
 | Slot occupied; Power LED on | 
| 2 | 
 | Start hot-plug removal via push button or cfgadm command | 
| 3 | 
 | Fault LED blinks briefly during unconfigure operation | 
| 4 | 
 | Card busy; check system console messages | 
Table 2-3 Adding a Card
| Step | 
 | Description | 
|---|---|---|
| 1 | 
 | Slot empty; all LEDs off | 
| 2 | 
 | Insert new card; OK-to-Remove LED turns on upon insertion | 
| 3 | 
 | Start hot-plug addition via push button or cfgadm command | 
| 4 | 
 | Power LED lights; Fault LED blinks during configure operation | 
| 5 | 
 | Operation successful; Power LED remains on | 
Table 2-4 Adding a Card - Fault Encountered
| Step | 
 | Description | 
|---|---|---|
| 1 | 
 | Slot empty; all LEDs off | 
| 2 | 
 | Insert new card; OK-to-Remove LED turns on upon insertion | 
| 3 | 
 | Start hot-plug addition via push button or cfgadm command | 
| 4 | 
 | Fault LED blinks during configure operation | 
| 5 | 
 | Fault encountered; Fault LED turns on | 
| 6 | 
 | Remove faulty card | 
| 7 | 
 | Slot empty; all LEDS off |