Intel ATX Version 3 (doc 336521) / SSI EPS12V

EPS12V 8-Pin CPU Power Connector Pinout

The 8-pin EPS12V power connector delivers dedicated +12 V current to modern multi-core CPUs. Select a contact to inspect its voltage rail and return.

Pin assignment

Pin 1: GND1Pin 2: GND2Pin 3: GND3Pin 4: GND4Pin 5: +12V5Pin 6: +12V6Pin 7: +12V7Pin 8: +12V8Pin 1: GND1Pin 2: GND2Pin 3: GND3Pin 4: GND4Pin 5: +12V5Pin 6: +12V6Pin 7: +12V7Pin 8: +12V8
  • Ground
  • Power

Schematic face view, not to scale · numbering per Intel ATX Version 3 (doc 336521) / SSI EPS12V

Pin assignment of EPS12V 8-Pin CPU Power Connector
PinSignalFunctionStatus
GNDGround ReturnStandard
GNDGround ReturnStandard
GNDGround ReturnStandard
GNDGround ReturnStandard
+12V+12 VDC CPU Power RailStandard
+12V+12 VDC CPU Power RailStandard
+12V+12 VDC CPU Power RailStandard
+12V+12 VDC CPU Power RailStandard

Pin details

Select a pin on the diagram or table for full details.

Pin details

About this connector

Standard 8-pin EPS12V CPU power connector providing dedicated +12 V rails and ground returns for motherboard processor voltage regulator modules.

Specifications

Standard
Molex Mini-Fit Jr. 8-pin (2x4)
Positions
8

Primary sources

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