Installing the Hardware 7Dell Force10 recommends re-inspecting your system prior to powering up.Verify that:• The equipment is properly secured to the rack and properly grounded.• The equipment rack is properly mounted and grounded.• The ambient temperature around the unit (which may be higher than theroom temperature) is within the limits specified for the S4810.• There is sufficient airflow around the unit.• The input circuits are correctly sized for the loads and that sufficient over-current protection devices are used.• All protective covers are in place.NOTE: A US AC power cable is included in the shipping container for poweringup an AC power supply. All other power cables must be ordered separately.CAUTION: Electrostatic discharge (ESD) damage can occur if componentsare mishandled. Always wear an ESD-preventive wrist or heel ground strapwhen handling the S4810 and its components.When the chassis powers up, the fans come on at high speed. The fan speedslows as the system boots up.The PWR LED blinks until the boot-up sequence is complete. When the boot upis complete the PWD LED is steadily lit.AC PowerCAUTION: Ensure that the Power Supply Unit is installed correctly. The ACpower connector must be on the left side of the PSU, and the status LED is atthe top of the PSU when the unit is correctly installed.Connect the plug to each AC power connector, making sure that the power cordis secure.As soon as the cable is connected between the S4810 and the power source, thechassis is powered-up; there is no on/off switch.DC PowerConnect the plug to each DC receptacle, making sure that the power cord issecure.As soon as the cable is connected between the S4810 and the power source, the