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ATX 3.0
Intel ATX 3.0 User Manual
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Environmental
336521
61
7.6
Random Vibration
–
RECOMM
ENDED
•
Non
-
operating 0.01 g²/Hz at 5 Hz, sloping to 0.02 g²/Hz at 20 Hz, and maintaining
0.02 g²/Hz from 20 Hz to 500 Hz.
The area under the PSD curv
e is 3.13 gRMS. The
duration shall be 10 minutes per axis for all three axes on all samples.
§§
60
62
Table of Contents
Table of Contents
3
Introduction
13
Alternative Low Power Mode for Power Supplies
13
Reference Documentation
13
Terminology
15
Table 1-1: Conventions and Terminology
15
Table 1-2: Support Terminology
16
Processor Configurations
17
Processor Configurations - RECOMMENDED
17
High End Desktop Market Processor Considerations
17
Table 2-1: 12V2 Current for Processor Configurations
17
Modular Power Supply Connectors
18
Overclocking Recommendations
19
PCI Express* Add-In Card Considerations
20
Pcie* Add-In Card Power Excursions
20
Table 3-1: PCI Express* CEM Add-In Card Power Excursion Limits Table
21
Pcie* Add-In Card and PSU Power Budgets
22
Figure 3-1: PCI Express* CEM Add-In Card Power Excursion Limits Chart
22
Table 3-2: Pcie* AIC and PSU Power Budget Used for Peak Power Excursion Test Cases
23
PSU Power Excursion
24
Table 3-3: Pcie* AIC and PSU Power Budget Used for Peak Power Excursion
24
Pcie* AIC Auxiliary Power Connectors
25
Figure 3-2: Duty Cycle Definition
25
Table 3-4: Duty Cycle Example Test Criteria for a 1000W PSU - RMS
25
Pcie* Add-In Card Auxiliary Power Connectors Sideband Signals
26
Table 3-5: Auxiliary Power Connectors Power Supply Rail Requirements - +12V Only
26
Sense1 / Sense0 (Required)
27
CARD_PWR_STABLE (Optional)
27
Table 3-6: PCI Express* 12VHPWR Connector Power Limits
27
CARD_CBL_PRES# (Optional)
28
Sideband Signals DC Specifications (Required)
29
Table 3-7: PCI Express* 12VHPWR Connector - Sideband Signal DC Specifications
29
Electrical
30
AC Input - REQUIRED
30
Input over Current Protection - REQUIRED
30
Inrush Current - REQUIRED
30
Input under Voltage - REQUIRED
30
Table 4-1: AC Input Line Requirements
30
DC Output - REQUIRED
31
DC Voltage Regulation - REQUIRED
31
DC Output Current - REQUIRED
31
Table 4-2: DC Output Voltage Regulation
31
Table 4-3: DC Output Transient Step Sizes
31
Table 4-4: DC Output Transient Slew Rate
32
Remote Sensing - RECOMMENDED
33
Other Low Power System Requirements
33
Output Ripple Noise - REQUIRED
33
Table 4-5: Recommended Standby Rail DC and AC Power Efficiency
33
Capacitive Load - RECOMMENDED
34
Figure 4-1: Differential Noise Test Setup
34
Table 4-6: DC Output Noise/Ripple
34
Table 4-7: Output Capacitive Loads
34
Closed Loop Stability - REQUIRED
35
+5V DC / +3.3V DC Power Sequencing - REQUIRED
35
Figure 4-2: Power Supply Timing
35
Voltage Hold-Up Time - REQUIRED
36
12V2 DC Minimum Loading - REQUIRED
36
Timing, Housekeeping and Control - REQUIRED
36
Figure 4-3: Power on Timing
36
Table 4-8: 12V2 DC Minimum Current
36
Pwr_Ok - Required
37
Table 4-9: Power Supply Timing
37
Power-Up Cross Loading Condition - REQUIRED
38
Ps_On# - Required
38
Table 4-10: PWR_OK Signal Characteristics
38
Table 4-11: PS_ON# Signal Characteristics
38
5Vsb - Required
39
Figure 4-4: PS_ON# Signal Characteristics
39
Power-On Time - REQUIRED
40
Rise Time - REQUIRED
40
Figure 4-5 +5VSB Power on Timing Versus VAC
40
Overshoot at Turn-On / Turn-Off - REQUIRED
41
Reset after Shutdown
41
5VSB at Power-Down - REQUIRED
41
Figure 4-6: Rise Time Characteristics
41
5VSB Fall Time - RECOMMENDATION
42
Output Protection
42
Over Voltage Protection (OVP) - REQUIRED
42
Figure 4-7: 5VSB Fall Time
42
Table 4-12: over Voltage Protection
42
Short Circuit Protection (SCP) - REQUIRED
43
Load Situation - REQUIRED
43
Over Current Protection (OCP) - REQUIRED
43
Over Temperature Protection (OTP) - REQUIRED
43
Output Bypass - REQUIRED
43
Separate Current Limit for 12V2 - OPTIONAL
43
Overall Power Supply Efficiency Levels
44
Table 4-13: Efficiency Versus Load Minimum Requirements
44
Table 4-14: Low Load Efficiency Requirements
44
Power Supply Efficiency for Energy Regulations - ENERGY STAR* and CEC (California Energy Commission) PC Computers with High Expandability Score - RECOMMENDED
45
Table 4-15: Efficiency Versus Load for ENERGY STAR
45
Table 4-16: Efficiency Versus Load for CEC PC Computers with High Expandability Computers
45
Mechanical
47
Labeling and Marking - RECOMMENDED
47
Figure 5-1: 12VHPWR Connector Labeling Example
47
Connectors - REQUIRED
48
AC Connector
48
DC Connectors
48
Figure 5-2: Connectors (Pin-Side View, Not to Scale)
48
Table 5-1: Main Power Connector Pin-Out
48
Main Power Connector - REQUIRED
49
Peripheral Connectors
49
Floppy Drive Connector - Do Not Include (for Historical Reference Only)
50
PCI-Express* (Pcie*) Add-In Card Connectors (Recommended)
50
Table 5-2: Peripheral Connector Pin-Out
50
Table 5-3: Floppy Connector Pin-Out
50
Table 5-4: Pcie* 2X3 Auxiliary Power Connector Pin Assignment (75 Watts)
51
Table 5-5: Pcie* 2X4 Auxiliary Power Connector Pin Assignment (150 Watts)
52
Table 5-6: Pcie* 2X4 Auxiliary Power Connector Sense Pin Decoding by AIC
52
Figure 5-3: 12VHPWR Cable Plug Connector
53
Figure 5-4: 12VHPWR Cable Assembly
54
+12 V Power Connector
55
Table 5-7: Pcie* 12VHPWR Auxiliary Power Connector Pin Assignment (600 Watts)
55
Table 5-8: +12 V Power 4 Pin Connector Pin-Out
55
Serial ATA* Connectors - REQUIRED
56
Table 5-9: +12 V Power 8 Pin Connector Pin-Out
56
Table 5-10: Serial ATA* Power Connector Pin-Out
56
Airflow and Fans - RECOMMENDED
57
Fan Location and Direction
57
Fan Size and Speed
57
Figure 5-5: Serial ATA* Power Connector
57
Venting
58
Acoustics
59
Acoustics - RECOMMENDED
59
Table 6-1: Recommended Power Supply Acoustic Targets
59
Environmental
60
Temperature - RECOMMENDED
60
Thermal Shock (Shipping) - RECOMMENDED
60
Humidity - RECOMMENDED
60
Altitude - RECOMMENDED
60
Mechanical Shock - RECOMMENDED
60
Random Vibration - RECOMMENDED
61
Electromagnetic Compatibility
62
Emissions - REQUIRED
62
Immunity - REQUIRED
62
Input Line Current Harmonic Content - OPTIONAL
62
Magnetic Leakage Field - REQUIRED
62
Table 8-1: EMC Requirement by Country
62
Voltage Fluctuations and Flicker - REQUIRED
63
Safety
64
North America - REQUIRED
64
International - REQUIRED
64
Proscribed Materials - REQUIRED
65
Catastrophic Failure Protection - RECOMMENDED
65
Reliability
66
Reliability - RECOMMENDED
66
Reliability - PS_ON# Toggle for S0Ix Mode - REQUIRED
66
CFX12V Specific Guidelines 2.0
67
Physical Dimensions - REQUIRED
67
Figure 11-1: CFX12V Mechanical Outline
67
LFX12V Specific Guidelines 2.0
68
Physical Dimensions - REQUIRED
68
Figure 12-1: LFX 12V Mechanical Outline
68
Figure 12-2: Mechanical Details
69
Figure 12-3: PSU Slot Feature Detail
70
Figure 12-4: Recommended Chassis Tab Feature
71
ATX12V Specific Guidelines 3.0
72
Figure 13-1: Power Supply Dimensions for Chassis that Does Not Require Top Venting
72
Figure 13-2: Power Supply Dimensions for Chassis that Require Top Venting
73
SFX12V Specific Guidelines 4.0
74
Lower Profile Package - Physical Dimensions - REQUIRED
74
Fan Requirements - REQUIRED
74
Figure 14-1: 40 MM Profile Mechanical Outline
75
Figure 14-2: Chassis Cutout
75
Top Fan Mount Package - Physical Dimensions -REQUIRED
76
Fan Requirements - REQUIRED
76
Figure 14-3: Top Mount Fan Profile Mechanical Outline
77
Reduced Depth Top Mount Fan - Physical
78
Fan Requirements - REQUIRED
78
Figure 14-4: Chassis Cutout
78
Figure 14-5: Recessed Fan Mounting
78
Figure 14-6: Reduced Depth Top Mount Fan Profile Mechanical Outline
79
Figure 14-7: Chassis Cutout
79
Standard SFX Profile Package - Physical Dimensions - REQUIRED
80
Fan Requirements - REQUIRED
80
Figure 14-8: 60 MM Mechanical Outline
80
PS3 Form Factor-Physical Dimensions - REQUIRED
81
Fan Requirements - REQUIRED
81
Figure 14-9: Chassis Cutout
81
Figure 14-10: PS3 Mechanical Outline
82
TFX12V Specific Guidelines 3.0
83
Physical Dimensions - REQUIRED
83
Figure 15-1: Mechanical Outline
83
Figure 15-2: Dimensions and Recommended Feature Placements (Not to Scale)
84
Mounting Options - RECOMMENDED
85
Figure 15-3: Power Supply Mounting Slot Detail
85
Chassis Requirements - RECOMMENDED
86
Figure 15-4: Fan Right and Fan Left Orientations of Power Supply in a Chassis
86
Figure 15-5: Suggested TFX12V Chassis Cutout
86
Figure 15-6: Suggested Mounting Tab (Chassis Feature)
87
Flex ATX Specific Guidelines 2.0
88
Physical Dimensions - REQUIRED
88
Figure 16-1: Mechanical Outline
88
Figure 16-2: Dimensions and Recommended Feature Placements (Not to Scale)
89
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Intel ATX 3.0 Specifications
General
Brand
Intel
Model
ATX 3.0
Category
Computer Hardware
Language
English
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