Symptoms: PDU Reporting Overload Warning

• The monitoring system fires a critical alert: PDU-A in rack C14 reports 87% load (34.8A on a 40A circuit).
• The PDU is a ServerTech Switched CDU, 208V 3-phase, 40A per phase.
• Phase L2 is the one overloaded; phases L1 (22.1A, 55%) and L3 (24.6A, 62%) are within normal range.
• The alert threshold is 80% (32A); the warning threshold is 70% (28A).
• The rack contains a mix of 1U and 2U servers plus two top-of-rack switches.
• Two new GPU-accelerated servers (2U, dual PSU) were installed in the rack yesterday.
• PDU-B (redundant feed) shows similar imbalance: L2 at 78%.
• The facility team confirms the branch circuit breaker has not tripped but is warm to the touch.
• No servers are currently experiencing power issues, but a breaker trip would be catastrophic.