2. +12 V Power Connector, Peripheral Connectors

ATX12V Power Supply Design Guide

Version 2.0

4.5.2. +12 V Power Connector

Connector: MOLEX 39-01-2040 or equivalent

(Mating motherboard connector is Molex 39-29-9042 or equivalent)

Signal

18 AWG Wire

1COMBlack

2COMBlack

Signal

18 AWG Wire

3+12V2DC Yellow /Black Stripe

4+12V2DC Yellow/ Black Stripe

4.5.3. Peripheral Connector(s)

Connector: AMP 1-480424-0 or MOLEX 8981-04P or equivalent.

Contacts: AMP 61314-1 or equivalent.

Pin	Signal	18 AWG Wire

1	+12V1DC	Yellow

2	COM	Black

3	COM	Black

4	+5VDC	Red

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Image 35

Intel ATX12V manual 2. +12 V Power Connector, Peripheral Connectors, Connector Molex 39-01-2040 or equivalent

Contents

Version ATX12V Important Information and Disclaimers Contents Electromagnetic Compatibility SafetyMechanical Environmental Tables Figures Minimum Efficiency IntroductionScope Increased +12 VDC output capability Terminology Main Power ConnectorSeparate current limit for 12V2 on the 2x2 connector Description Applicable DocumentsDocument Title Inrush Current Limiting ElectricalAC Input Input Over-current Protection Other Certifications and/or Declarations Input Under-voltageRegulatory DC Output Voltage Regulation DC OutputCatastrophic Failure Protection DC Voltage Regulation Remote Sensing Typical Power Distribution Current Output Amps Power12V power watts Min Max Cross Loading Graph for 300W Configuration Typical Power Distribution for a 300 W ATX12V Configuration Cross Loading Graph for 350W Configuration Typical Power Distribution for a 350 W ATX12V Configuration Min Max Peak Current Output Amps Typical Power Distribution for a 400 W ATX12V Configuration Minimum Efficiency Vs Load Power Limit / Hazardous Energy LevelsEfficiency General Loading Table for Efficiency Measurements Energy Star Energy Star Input Power ConsumptionOther Low Power System Requirements Output Ripple/Noise Max. Ripple & Noise MVpp DC Output Noise/Ripple Output Capacitive Loads Output Transient ResponseCapacitive Load DC Output Transient Step Sizes Voltage Hold-up Time 10. +5 VDC / +3.3 VDC Power SequencingTiming / Housekeeping / Control Closed-loop Stability PSON# Pwrok Signal CharacteristicsPwrok 3. +5 VSB PSON# Signal Characteristics Risetime Power-on TimeReset after Shutdown 8. +5 VSB at AC Power-down No-load Operation Output ProtectionOver-voltage Protection Short-circuit Protection Output Bypass Over-temperature Protection Labeling / Marking Physical DimensionsMechanical Second optional fan may go in this location Second optional Airflow / Fan DC Connectors AC Connector +12V1 +5V +33V 12V+5V Pin Signal Color ATX Main Power Connector Pin Signal AWG Wire 2. +12 V Power ConnectorPeripheral Connectors Connector Molex 39-01-2040 or equivalent Connector AMP 171822-4 or equivalent Pin Signal AWG Wire Serial ATA Power ConnectorFloppy Drive Connector Wire Signal Humidity TemperatureEnvironmental Thermal Shock Shipping Acoustics Mechanical ShockRandom Vibration Immunity Electromagnetic CompatibilityEmissions Harmonic Limits, Class D Equipment Input Line Current Harmonic Content and Line FlickerMagnetic Leakage Fields Component De-rating Reliability North America Safety Proscribed Materials International

Intel ATX12V manual 2. +12 V Power Connector, Peripheral Connectors, Pin Signal AWG Wire

Models: ATX12V

4.5.2. +12 V Power Connector

Connector: MOLEX 39-01-2040 or equivalent

Pin

Signal

18 AWG Wire

4.5.3. Peripheral Connector(s)