Shortly after power is applied to the server, the SP OK/Fault LED blinks as the SP boots. The SP OK/Fault LED is illuminated solid green when the SP has successfully booted. After the SP has booted, the Power OK/LED on the front panel begins flashing slowly, indicating that the host is in standby power mode.
When main power is applied to the server, the main Power/OK LED begins to blink more quickly while the system boots and lights solidly once the operating system boots.
Each time the server powers on, the power-on self-test (POST) can take several minutes to complete.
Figure 10 Power Button, Power/OK LED, and SP Fault/OK LED
1 Power/OK LED
2 Power Button
3 SP OK/Fault LED
Caution - Do not operate the server without all fans, component heatsinks, air baffles, and the cover installed. Severe damage to server components can occur if the server is operated without adequate cooling mechanisms.