Intel ATX12VO V3 Leak Points to New Connector and Higher PSU Efficiency

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A leaked Intel ATX12VO V3 deck shows a new 8-pin design, PMBUS options, and reported efficiency gains versus multi-rail ATX power supplies.

Quick Report

A new leak suggests Intel is preparing ATX12VO V3 with another round of efficiency-focused changes to its 12-volt-only desktop power standard. The slide set points to a new 8-pin connector path, removal of the standby rail, and new Low Power and High Power operating modes.

TechPowerUp reports the leaked data claims up to 29 percent better idle efficiency and up to 12 percent better load efficiency against regular multi-rail ATX designs. The update also appears to add PMBUS support from server ecosystems through four optional motherboard communication pins, enabling richer PSU-to-system telemetry and control if platform vendors adopt the full feature set.

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