Intel ATX12V manual Important Information and Disclaimers

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ATX12V Power Supply Design Guide

Version 2.0

IMPORTANT INFORMATION AND DISCLAIMERS

INTEL CORPORATION (AND ANY CONTRIBUTOR) IS PROVIDING THIS INFORMATION AS A CONVENIENCE AND ACCORDINGLY MAKES NO WARRANTIES WITH REGARD TO THIS DOCUMENT OR PRODUCTS MADE IN CONFORMANCE WITH THIS DOCUMENT.

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Contents ATX12V VersionImportant Information and Disclaimers Contents Environmental SafetyMechanical Electromagnetic CompatibilityFigures TablesIncreased +12 VDC output capability IntroductionScope Minimum EfficiencyTerminology Main Power ConnectorSeparate current limit for 12V2 on the 2x2 connector Description Applicable DocumentsDocument Title Input Over-current Protection ElectricalAC Input Inrush Current LimitingOther Certifications and/or Declarations Input Under-voltageRegulatory DC Voltage Regulation DC OutputCatastrophic Failure Protection DC Output Voltage RegulationTypical Power Distribution Remote SensingMin Max Power12V power watts Current Output AmpsTypical Power Distribution for a 300 W ATX12V Configuration Cross Loading Graph for 300W ConfigurationTypical Power Distribution for a 350 W ATX12V Configuration Cross Loading Graph for 350W ConfigurationTypical Power Distribution for a 400 W ATX12V Configuration Min Max Peak Current Output AmpsGeneral Power Limit / Hazardous Energy LevelsEfficiency Minimum Efficiency Vs LoadLoading Table for Efficiency Measurements Output Ripple/Noise Energy Star Input Power ConsumptionOther Low Power System Requirements Energy StarDC Output Noise/Ripple Max. Ripple & Noise MVppDC Output Transient Step Sizes Output Transient ResponseCapacitive Load Output Capacitive LoadsClosed-loop Stability 10. +5 VDC / +3.3 VDC Power SequencingTiming / Housekeeping / Control Voltage Hold-up TimePSON# Pwrok Signal CharacteristicsPwrok PSON# Signal Characteristics 3. +5 VSB8. +5 VSB at AC Power-down Power-on TimeReset after Shutdown RisetimeShort-circuit Protection Output ProtectionOver-voltage Protection No-load OperationOver-temperature Protection Output BypassLabeling / Marking Physical DimensionsMechanical Second optional fan may go in this location Second optional Airflow / Fan AC Connector DC Connectors+12V1 +5V +33V 12V+5V ATX Main Power Connector Pin Signal ColorConnector Molex 39-01-2040 or equivalent 2. +12 V Power ConnectorPeripheral Connectors Pin Signal AWG WireWire Signal Serial ATA Power ConnectorFloppy Drive Connector Connector AMP 171822-4 or equivalent Pin Signal AWG WireThermal Shock Shipping TemperatureEnvironmental HumidityAcoustics Mechanical ShockRandom Vibration Immunity Electromagnetic CompatibilityEmissions Harmonic Limits, Class D Equipment Input Line Current Harmonic Content and Line FlickerMagnetic Leakage Fields Reliability Component De-ratingSafety North AmericaInternational Proscribed Materials