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General| Brand | Intel |
|---|---|
| Model | ATX |
| Category | Power Supply |
| Language | English |
Discusses new power states like Modern Standby, requiring new power supply features.
Lists documents referenced in the design guide for further information and guidelines.
Defines acronyms, conventions, and terminology used throughout the design guide.
Provides 12V2 current recommendations for various processor TDPs for PSU design.
Covers higher power requirements for high-end desktops and modular connector guidelines.
Advises on increasing 12V power rail capacity for overclocked processors.
Lists AC input voltage and frequency requirements for continuous PSU operation.
Specifies required DC output voltage ranges under various conditions.
Summarizes expected output transient step sizes for each DC output.
Recommends remote sensing for accurate control of motherboard loads and compensating cable drops.
Advises on minimizing +5VSB standby supply power consumption for low power system demands.
Defines output ripple and noise requirements and measurement setup.
Specifies required capacitances and unconditional stability under all load conditions.
Mandates +12V and +5V outputs to be greater than +3.3V during power-up.
Specifies hold-up time after AC loss and minimum current for 12V2 DC output.
Details power supply timing parameters like power-on, rise time, and PWR_OK signals.
Explains PWR_OK signal and PSU behavior under cross-load during power-up.
Details the PS_ON# signal for remote control of power supply outputs.
Covers the +5VSB standby output, its operational requirements, and overcurrent protection.
Specifies time limits for power-on and output voltage rise.
Covers voltage overshoot, shutdown reset, and +5VSB behavior after AC power removal.
Recommends +5VSB fall time and details over-voltage protection requirements.
Details short circuit, over current, over temperature protection, and output bypass.
Discusses testing PSU efficiency against Energy Star and CEC regulations.
Lists suggested markings for power supply units and regulatory requirements.
Covers AC input receptacle and DC connectors for power supply harnesses.
Specifies main power connector and details peripheral connector types.
Describes connectors for floppy drives (historical), PCIe graphics, and +12V power.
Covers required connectors for systems with Serial ATA devices.
Discusses power supply cooling solutions and airflow requirements.
Recommends fan speed control, size, and advises on vent design for cooling.
Recommends design features for meeting acoustic targets and avoiding discrete tones.
Defines recommended operating/non-operating temperatures and thermal shock for shipping.
Details recommended operating/non-operating humidity levels and altitude limits.
Specifies recommended mechanical shock and random vibration test parameters.
Outlines requirements for FCC, EN55023, and CISPR 22 Class B emissions compliance.
Specifies EN 55024/CISPR 24 immunity and optional harmonic content measurement.
Requires magnetic leakage not to interfere with monitors and meet voltage flicker limits.
Details NRTL certification requirements for USA and Canada, including UL 60950-1.
Requires CB certificate, material restrictions, and protection against catastrophic failures.
Recommends de-rating components and considering capacitor/fan lifetime for reliability.
Addresses PSU reliability for frequent PS_ON# toggling in S0ix mode.
Specifies that the power supply must be enclosed and meet the physical outline shown.
Details physical dimensions and mechanical aspects for LFX12V form factor.
Requires the power supply to be enclosed and meet the physical outline.
Specifies fan airflow direction and size for the SFX12V form factor.
Details physical dimensions for the top fan mount SFX12V package.
Specifies fan airflow and size for the top mount SFX12V package.
Details physical dimensions for reduced depth top mount SFX12V package.
Specifies fan airflow and size for reduced depth top mount SFX12V package.
Details physical dimensions for the standard SFX profile package.
Specifies fan airflow and size for the standard SFX profile package.
Details physical dimensions for the PS3 form factor.
Specifies fan requirements for the PS3 form factor.
Details physical dimensions for the TFX12V form factor.
Discusses chassis mounting options and orientations for TFX12V power supplies.
Lists chassis features required for easy integration of TFX12V power supplies.
Details physical dimensions for the Flex ATX form factor.
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