Dell PowerEdge R7525 EMC Technical Specifications - Page 32
Table 40. AC PSU status indicator codes continued, Power Performance EPP label. Mixing PSUs
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Table 40. AC PSU status indicator codes (continued) Power indicator codes Condition CAUTION: When correcting a PSU mismatch, replace the PSU with the blinking indicator. Swapping the PSU to make a matched pair can result in an error condition and an unexpected system shutdown. To change from a high output configuration to a low output configuration or vice versa, you must power off the system. CAUTION: AC PSUs support both 240 V and 120 V input voltages. When two identical PSUs receive different input voltages, they may output different wattages, and trigger a mismatch. Table 41. DC PSU status indicator codes Power indicator codes Green Blinking amber Not powered on Blinking green Condition Indicates that a valid power source is connected to the PSU, and the PSU is operational. Indicates an issue with the PSU. Indicates that the power is not connected to the PSU. When hot-plugging a PSU, it blinks green five times at a rate of 4 Hz and powers off. This indicates a PSU mismatch due to efficiency, feature set, health status, or supported voltage. CAUTION: If two PSUs are installed, both the PSUs must have the same type of label; for example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of PowerEdge servers is not supported, even if the PSUs have the same power rating. This results in a PSU mismatch condition, or failure to power on the system. CAUTION: If two PSUs are used, they must be of the same type and have the same maximum output power. CAUTION: When correcting a PSU mismatch, replace the PSU with the blinking indicator. Swapping the PSU to make a matched pair can result in an error condition and an unexpected system shutdown. To change from a High Output configuration to a Low Output configuration or conversely, you must power off the system. CAUTION: Combining AC and DC PSUs is not supported. 32 System diagnostics and indicator codes