Before you disconnect the server from the power source, make a note of which LEDs light up, including the LEDs that light up on the operation information panel, on the light path diagnostics panel, and LEDs inside the server on the system board. Once you disconnect the server from the power source, you lose the ability to view the LEDs because the LEDs do not light up when the power source is removed.
Remove the server cover to access the server's internal components.
Important Always use an electrostatic-discharge wrist strap or other grounding system when you work inside the server. For more information, see Protecting against ESD damage.

| 1 | Cover |
| 2 | Tab |

| 1 | Cover release latch |
Important For proper cooling and airflow, replace the cover before you turn on the server. Operating the server for extended periods of time (over 30 minutes) with the cover removed might damage server components.