Intel ATX12V manual Mechanical, Environmental, Electromagnetic Compatibility, Reliability, Safety

ATX12V Power Supply Design Guide

Version 2.0

3.4.3.	No-load Operation	26
3.4.4.	Over-current Protection	26
3.4.5.	Over-temperature Protection	27
3.4.6.	Output Bypass	27

4. Mechanical		28
4.1.	Labeling / Marking	28
4.2.	Physical Dimensions	28
4.3.	Airflow / Fan	31
4.4.	AC Connector	32
4.5.	DC Connectors	32
	4.5.1. ATX Main Power Connector	34
	4.5.2. +12 V Power Connector	35
	4.5.3. Peripheral Connector(s)	35
	4.5.4. Serial ATA Power Connector	36
	4.5.5. Floppy Drive Connector	36

5. Environmental		37
5.1.	Temperature	37
5.2.	Thermal Shock (Shipping)	37
5.3.	Humidity	37
5.4.	Altitude	37
5.5.	Mechanical Shock	38
5.6.	Random Vibration	38
5.7.	Acoustics	38

6. Electromagnetic Compatibility		39
6.1.	Emissions	39
6.2. Immunity		39
6.3. Input Line Current Harmonic Content and Line Flicker		40
6.4.	Magnetic Leakage Fields	40

7.	Reliability		41
	7.1.	Component De-rating	41
8.	Safety		42
	8.1.	North America	42
	8.2.	International	43
	8.3.	Proscribed Materials	43

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