Dell R520, E19S owner manual Power Indicator Codes For Non-Redundant Power Supply

Power Indicator	Condition
Pattern
	CAUTION: AC power supplies support both 220 V and 110 V input voltages with the
	exception of Titanium power supplies, which support only 220 V. When two identical
	power supplies receive different input voltages, they can output different wattages, and
	trigger a mismatch.
	CAUTION: If two power supplies are used, they must be of the same type and have the
	same maximum output power.
	CAUTION: Combining AC and DC power supplies is not supported and triggers a mismatch.
Flashing green	When hot-adding a power supply, this indicates that the power supply is mismatched with the
	other power supply (in terms of efficiency, feature set, health status, and supported voltage).
	Replace the power supply that has the flashing indicator with a power supply that matches the
	capacity of the other installed power supply.

Power Indicator Codes For Non-Redundant Power Supply

The non-redundant power supply has a status indicator and a self-diagnostic button. The self-diagnostic button is used to perform a quick health check on the non-redundant power supply of the system.

Figure 10. Non-Redundant AC Power Supply Status Indicator and Self-Diagnostic Button

1.self-diagnostic button

2.non-redundant AC power supply status indicator

Diagnostic Indicator	Condition
Pattern
Not lit	Power is not connected or power supply is faulty.

17