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Intel ATX12VO Design Manual

Intel ATX12VO Design Manual

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ATX12VO (12V Only) Desktop
Power Supply
Design Guide
Revision 2.01
January 2023
Document Number: 613768

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Summary of Contents for Intel ATX12VO

  • Page 1 ATX12VO (12V Only) Desktop Power Supply Design Guide Revision 2.01 January 2023 Document Number: 613768...
  • Page 2 You may not use or facilitate the use of this document in connection with any infringement or other legal analysis. You may not use or facilitate the use of this document in connection with any infringement or other legal analysis concerning Intel products described herein.

  • Page 3: Table Of Contents

    Contents Introduction ....................11 Power Supplies and Alternative Low Power Mode ........11 System Power Telemetry Feature ............12 References ................... 12 Terminology ..................13 Processor Configurations .................. 16 Processor Configurations (Recommended) ..........16 High End Desktop Market Processor Considerations ........16 2.2.1 Modular Power Supply Connectors ..........
  • Page 4 Output Protection .................. 45 4.5.1 Over Voltage Protection (OVP) (Required) ........45 4.5.2 Short Circuit Protection (SCP) (Required) ........45 4.5.3 No-Load Situation (Required) ............ 45 4.5.4 Over Current Protection (OCP) (Required) ........45 4.5.5 Over Temperature Protection (OTP) (Required) ......46 4.5.6 Output Bypass (Required) ............
  • Page 5 LFX12V Specific Guidelines 2.0 ................80 12.1 Physical Dimensions (Required) .............. 80 ATX12V Specific Guidelines 3.0 ................. 83 SFX12V Specific Guidelines 4.0 ................85 14.1 Lower Profile Package – Physical Dimensions (Required) ......85 14.2 Fan Requirements (Required) ..............85 14.3 Top Fan Mount Package –...
  • Page 6 Figure 5-12: 3 mm SATA Power 6 pin/4 SATA Device Cable Diagram (Connector Top View) ....................... 66 Figure 5-13: 3 mm SATA Power 6 Pin Cable Connector – Traditional Cable Diagram . 66 Figure 5-14: 3 mm SATA Power 6 Pin Cable Connector – Key and Pin Locations (Bottom View) ...................
  • Page 7 Table 4-4: DC Output Transient Slew Rate ............31 Table 4-5: Required System DC and AC Power Consumption ......... 32 Table 4-6: DC Output Noise/Ripple ..............32 Table 4-7: Output Capacitive Loads ..............33 Table 4-8: Power Supply Timing ................ 34 Table 4-9: PWR_OK Signal Characteristics ............
  • Page 8 Revision History Document Revision Revision Description Number Number Date • Initial version May 2019 • Section – Added reference of PSU Addendum for all future processor support. Table 4-6 – Updated 12VSB Ripple and Noise p-pV value to • match all other 12V Rails. Table 4-8 –...
  • Page 9 Document Revision Revision Description Number Number Date • Table 4-4 added Slew Rate changes based on PSU size • Added last sentence in Section 4.2.6 for clarification • added about PSU must be able to resume quickly from fast change in PS_ON# signal re-assertion in Section 4.3.2 last paragraph...
  • Page 10 Document Revision Revision Description Number Number Date • Added mention of two options for 12VHPWR Connector, header changed to “Recommended” for PSUs> 450 watts in Section 5.2.2.4.3 • Updated Figure 5-4 Figure 5-5 - figures with new pictures of both 12VHPWR connector options •...

  • Page 11: Introduction

    Lastly, a few sections are labeled as OPTIONAL, which would not be intended for all design but is helpful to some designs. The specification name for this Power Supply Design is ATX12VO, which stands for ATX 12V Only. If the mechanical size of the power supply is different from ATX, for example SFX then it would be SFX12VO.

  • Page 12: System Power Telemetry Feature

     PSU response quickly to toggling of PS_ON# signal System Power Telemetry Feature When ATX12VO was designed one pin was reserved in the main 10 pin connector for a Telemetry feature. This Telemetry feature is the ability of the power supply to report the percentage of rated power being used by the system.

  • Page 13: Terminology

    Introduction Document Document Description Number/Source IEC/UL/CSA 62368-1 IEC/UL/CSA 60950-1 EN 60950-1 EU Low Voltage Directive (2014/35/EU) GB-4943 (China) CNS 14336 (Taiwan BSMI) CISPR32/EN55032 (Electromagnetic compatibility of multimedia equipment - Emission requirements) EU EMC Directive (2014/30/EU) CISPR35/EN55035 (Electromagnetic compatibility multimedia equipment Immunity requirements) FCC Part 15 Class B (Radiated and Conducted Emissions) PCI Express Card Electromechanical Specification Revision 5.0 PCISIG.com Doc # 15904...

  • Page 14: Table 1-1: Conventions And Terminology

    Introduction Table 1-1: Conventions and Terminology Acronym/Convention/ Description Terminology Alternative Low Power Mode (ALPM) replaces the traditional Sleep Mode (ACPI S3) and sometime Long Idle [Idle (S0) Display off] ALPM with a new lower power mode. An example of ALPM is Microsoft* Modern Standby* or Lucid Sleep with Google* Chrome* American Wire Gauge Declared sound power, LwAd.

  • Page 15: Table 1-2: Support Terminology

    Introduction Table 1-2: Support Terminology Category Description The status given to items within this design guide, which are not required to meet design guide, however, some system applications may optionally use Optional these features. May be a required or recommended item in a future design guide.

  • Page 16: Processor Configurations

    10 ms. All future processor power/PSU current requirements will be defined in a document titled ATX12VO and ATX12V PSU Design Guide Addendum (# 621484) that is applicable to both Single Rail and Multi Rail ATX Power Supplies. Refer to that document for details of where these values come from.

  • Page 17: Modular Power Supply Connectors

    Processor Configurations 2.2.1 Modular Power Supply Connectors A modular power supply, with multiple detachable cable options is recommended to provide the greatest flexibility to the end user. This approach reduces the chassis volume consumed by unused power cables to improve cable routing and cooling. The dedicated 12V CPU connectors on the motherboard are either a single 8 pin (2x4) connector, or one or two 4 pin (2x2) connectors, detailed in Section 5.2.2.3 +12V CPU...

  • Page 18: Overclocking Recommendations

    Processor Configurations For example, a standard 2x3 PCIe* power connector supporting a graphics card will draw no more than 6.75 Amps total through its three power pins and two ground pins. Similarly, the 2x4 PCIe* power connector will draw no more than 13.5 Amps total through three power pins and three ground pins.

  • Page 19: Pci Express* Add-In Card Considerations

    PCI Express* Add-in Card Considerations PCI Express* Add-in Card Considerations The PCI Express* (PCIe*) Card Electromechanical Specification (CEM Spec) provides thermal, power, mechanical, and signal integrity design guidance for the PCI Express* Add-in Card (AIC) form factor. This includes the card’s electrical and mechanical interface with a host system board, chassis, and power supply.

  • Page 20: Table 3-1: Pci Express Cem Add-In Card Power Excursion Limits Table

    PCI Express* Add-in Card Considerations integrated into the specification itself in upcoming releases. This ECN is titled “Power Excursion Limits for 300W-600W PCIe* AICs” (Doc# 16495). This ECN defines power excursions, which are a “temporary condition in which the power exceeds the maximum sustained power”.

  • Page 21: Pcie* Add-In-Card And Psu Power Budgets

    PCI Express* Add-in Card Considerations Average Power Calculation Ratio of Average Power Interval Length in Notes microseconds(µs) Interval “T” Divided by Maximum Sustain Power “T” <1,000,000 µs (1 sec) ≥ 1,000,000 µs (1 sec) average power during internal T NOTE: Max Sustained Power (ie.TDP) 2.

  • Page 22: Table 3-2: Pcie* Aic And Psu Power Budget Used For Peak Power Excursion Test

    PCI Express* Add-in Card Considerations 2. PCIe* Add-in Card power level 3. Rest-of-Platform power demand Rest-of-Platform (ROP) collectively includes anything in a system (memory, storage, motherboard, peripherals, etc.) not including the PCIe* Add-in Cards or CPU. Table provides examples that generally balance these three power demands to obtain an overall PSU power rating.

  • Page 23: Psu Power Excursion

    Power Excursion % of PSU rated size must also be calculated. This Table is only applicable if a power supply does not provide the I_PSU% signal. As I_PSU% is required for ATX12VO power supplies refer to Section 4.3.7, refer Table 4-2 for an updated table.

  • Page 24: Pcie* Aic Auxiliary Power Connectors

    PSU sizes will be detailed in the “Desktop Platform Form 338448 Factor Power Supply Test Plan – Doc # This Table is only applicable if a power supply does not provide the I_PSU% signal. As I_PSU% is required for ATX12VO power supplies refer to Section 4.3.7, see Table 4-13 Table 4-14 for an updated table.

  • Page 25: Pcie* Add-In-Card Auxiliary Power Connectors Sideband Signals

    PCI Express* Add-in Card Considerations Power connectors. Each Auxiliary Power Connector must have voltage pins that belong to the same +12V power converter if multiple voltage rails exist from the PSU. Table 3-5: Auxiliary Power Connectors Power Supply Rail Requirements - +12V Only +12V Power Rail 12VHPWR 2x3 Connector...

  • Page 26: Card_Pwr_Stable (Optional)

    PCI Express* Add-in Card Considerations Power Connector. The Maximum Permitted Power is the maximum supported by this auxiliary power connector alone. It does not correspond to power consumed through motherboard card edge connector. The PSU providing the 12VHPWR auxiliary power connector must short the appropriate SENSE signals to ground or leave them open (high impedance) to indicate the power limits associated with the power supply.

  • Page 27: Card_Cbl_Pres# (Optional)

    PCI Express* Add-in Card Considerations Support for this optional sideband signal does not rely on any of the other sideband signals defined for the 12VHPWR connector and can be implemented independently of other of these sideband signals. 3.3.3 CARD_CBL_PRES# (Optional) This sideband signal has two functions: •...

  • Page 28: Sideband Signals Dc Specifications (Required)

    PCI Express* Add-in Card Considerations • Two PCIe* Add-in Cards are detected, each card gets 300 Watts. • Three or Four PCIe* Add-in Cards are detected, each card gets 150 Watts. 3.3.4 Sideband Signals DC Specifications (Required) The four sideband signals defined for the 12VHPWR connector DC Specifications are shown in Table 3-7.

  • Page 29: Electrical

    Electrical Electrical The following electrical requirements are required and must be met over the environmental ranges as defined in Chapter (unless otherwise noted). AC Input – REQUIRED Table 4-1 lists AC input voltage and frequency requirements for continuous operation. The power supply shall be capable of supplying full-rated output power over two input voltage ranges rated 90-135 VAC and 180-265 VAC rms nominal.

  • Page 30: Dc Output (Required)

    Electrical DC Output (Required) The Single Rail Desktop Power Supply will use +12V for all main power to the computer with a +12VSB that will be used in Sleep, ALPM, or Off type modes. The +12V power can be split into multiple 12V rails to comply with 240VA safety requirements or be one large 12V rail depending on power supply and system manufacturing needs.

  • Page 31: Remote Sensing (Optional)

    Electrical NOTES: 12V2 rails are typically used for CPU power. CPU step size will have more updated values in the Power Supply Design Guide Addendum (# 621484) which will be used to determine the 85% value 12V3/V4 rails are typically used for PCIe* Add-in Card connectors. This recommendation is based on Section 3 where PCIe* Add-in Card needs are discussed.

  • Page 32: Output Ripple Noise (Required)

    Electrical include: Blue Angel* system requirements, RAL-UZ 78, US Presidential executive order 13221, ENERGY STAR*, ErP Lot 6 requirements (2010 and 2013 levels), and 2014 ErP Lot 3 requirements. Additionally, if any Computers use an Alternative Low Power Mode (ALPM) then the +5VSB standby efficiency has similar requirements as shown below.

  • Page 33: Capacitive Load (Recommended)

    Electrical Figure 4-1: Differential Noise Test Setup 4.2.6 Capacitive Load (Recommended) The power supply should be able to power up and operate within the regulation limits defined in Table 4-2, with the following capacitances simultaneously present on the DC outputs. These Capacitive Loads are to simulate what a motherboard / system provides when connected to a power supply.

  • Page 34: Multiple 12V Rail Power Sequencing (Required)

    Electrical 4.2.8 Multiple 12V Rail Power Sequencing (Required) If the power supply has multiple +12VDC rails all output rails must reach its minimum in-regulation level (11.2V) within 20ms of when the first +12VDC rail reaches it minimum in-regulation level (11.2V). 4.2.9 Voltage Hold-Up Time (Required) The power supply shall maintain output regulations per...

  • Page 35: Pwr_Ok (Required)

    Electrical Value Parameter Description Required Recommended Rise time 0.2–20 ms PWR_OK delay 1ms – 150ms 1–100 ms PWR_OK rise time < 10 ms AC loss to PWR_OK > 16 ms hold-up time PWR_OK inactive to > 1 ms DC loss delay NOTES: T1 and T3 required values are set to meet timing requirement for computers that use ALPM.

  • Page 36: Table 4-10: Ps_On# Signal Characteristics

    Electrical held at zero potential with respect to ground. PS_ON# has no effect on the +12VSB output, which is always enabled whenever the AC power is present. To support systems with ALPM this is required for all power supplies. The power supply may be asked to turn back on before all voltage rails have turned off.

  • Page 37: 12Vsb (Required)

    Electrical Figure 4-3: PS_ON# Signal Characteristics 4.3.3 +12VSB (Required) +12VSB is a standby supply output that is active whenever the AC power is present. This output provides a power source for circuits that must remain operational when the main 12V DC output rails are in a disabled state. Example uses include soft power control, Wake on LAN, wake-on-modem, intrusion detection, Alternative Low Power Modes (ALPM) or suspend state activities.

  • Page 38: Power-On Time (Required)

    Electrical Figure 4-4: +12VSB Power on Timing versus VAC 4.3.4 Power-On Time (Required) The power-on time is defined as the time from when PS_ON# is pulled low to when the +12 VDC output is within the regulation ranges specified in Table 4-2.

  • Page 39: Overshoot At Turn-On / Turn-Off (Required)

    Electrical Figure 4-5: Rise Time Characteristics 4.3.6 Overshoot at Turn-On / Turn-Off (Required) The output voltage overshoot upon the application or removal of the input voltage, or the assertion/de-assertion of PS_ON#, under the conditions specified in Table 4-2, shall be less than 10% above the nominal voltage. No voltage of opposite polarity shall be present on any output during turn-on or turn-off.
  • Page 40 Electrical Parameter Description RL_low = 511 Ohms 1% for 1V @ 200% loading CL_low = 1800pF, 5% for 1V @ 200% loading RL_high = 1.65K ohm 1% for 3.3V @200% loading CL_high = 560 pF, 5% for 3.3V @200% loading ≤5% @ 121% to 200% of Rated Power ≤2.5% @ 80% to 120% of Rated Power Accuracy I_PSU%...

  • Page 41: Figure 4-6: I_Psu% Delay Time Diagram

    Electrical Figure 4-6: I_PSU% Delay Time Diagram Inside the power supply, a transconductance amplifier needs to be added to report the I_PSU% signal. Figure 4-7 below is a reference schematic for the circuitry that needs to be included. The green box represents the power supply. For the transconductance ��������...

  • Page 42: Figure 4-7: Recommended Circuit Diagram For I_Psu% Signal Inside Psu

    Electrical Figure 4-7: Recommended Circuit Diagram for I_PSU% signal inside PSU 4.3.7.1 PCIe* CEM Gen 5 Power Excursions and I_PSU% (Required) Section of this document details peak power requirements for a power supply. When a power supply includes I_PSU%, the peak power requirements are less for all time criteria except the short time and highest level.

  • Page 43: Table 4-12: Pcie Aic And Psu Power Budget Used For Peak Power Excursion

    Electrical Table 4-12: PCIE AIC and PSU Power Budget used for Peak Power Excursion Power Excursion as a % of PSU Size Time for Power Testing ≤450 watts or ≥1000 Excursion Duty Cycle 450 Watts any PSU without watts (TE) <...

  • Page 44: Reset After Shutdown

    Power supply 12VSB is recommended to go down to low level within 2 seconds under any load condition after AC power is removed as shown in the below figure. Intel test plan will test at Light 20% Load. If system requires specific +12VSB fall time, the PSU design is recommended to support it.

  • Page 45: Output Protection

    Electrical Output Protection 4.5.1 Over Voltage Protection (OVP) (Required) The over voltage sense circuitry and reference shall reside in packages that are separate and distinct from the regulator control circuitry and reference. No single point fault shall be able to cause a sustained over voltage condition on any or all outputs.

  • Page 46: Over Temperature Protection (Otp) (Required)

    Electrical components may occur. The recommended over current protection scheme is for the power supply to latch into the shutdown state. PSU connectors, cables and all other components should not be melted or damaged prior reaching to the OCP trigger. 4.5.5 Over Temperature Protection (OTP) (Required) The power supply shall include an over-temperature protection sensor, which can trip...

  • Page 47: Power Supply Efficiency For Energy Regulations - Energy Star* And Cec Pc Computers With High Expandability Score (Recommended)

    Electrical Computers have decreased Idle power greatly since 2005, to where PSU loss is a big concern for overall AC power of a computer in Idle Mode. The lowest DC load for computers at this Idle Mode is determined to be 10 Watts for mainstream computers and could go lower.

  • Page 48: Table 4-19: Energy Star* Efficiency Versus Load

    Electrical • https://www.energy.ca.gov/rules-and-regulations/appliance-efficiency- regulations-title-20 energycodeace.com/content/reference-ace-t20-tool, then select section “(v) • Computers…” Note: Visit ENERGY STAR* and CEC website for the latest specification update. Table 4-19: ENERGY STAR* Efficiency versus Load Full Typical Light PFC @ Load Load Load Loading Remarks Load Load (100%)

  • Page 49: Mechanical

    DC output voltages and current ratings. Revision number of the ATX12VO, SFX12VO, etc. specification that the power supply meets. Access warning text (“Do not remove this cover. Trained service personnel only. No user serviceable components inside.”) must be in English, German, Spanish, French,...

  • Page 50: Connectors (Required)

    Mechanical Figure 5-1: 12VHPWR Connector Labeling Example Connectors (Required) 5.2.1 AC Connector The AC input receptacle shall be an IEC 320 type or equivalent. In lieu of a dedicated switch, the IEC 320 receptacle may be considered the mains disconnect. 5.2.2 DC Connectors The below table shows pinouts and profiles for typical power supply DC harness...

  • Page 51: Figure 5-2: 4.2 Mm Power Header 10 Pin Main Power - Pin Locations

    Mechanical Motherboard Connector Cable Connector Company Part Number Part Number Amphenol* 10157976-1022BPLF 10158000-101LF Lotes* GAP-APOW0106-P001A01 ABA-WAF-903-P01 Foxconn* HMBA050-K3FF2-4H Wieson* AC2211-0009-003-HH AB9001-0009-005-HH The mating pilers are unique to this design, refer to figure below. Note connector color can be changed work with connector companies to see what they provide. Motherboard connector color is recommended to be white to show that power into the board is different color than power going out of the board (3 mm SATA Power Connector), which is recommended to be black.

  • Page 52: Figure 5-3: 4.2 Mm Power Header 10 Pin Main Power - Motherboard Connector, Pc Board Layout With Dimensions

    Mechanical Figure 5-3: 4.2 mm Power Header 10 pin Main Power – Motherboard Connector, PC Board Layout with Dimensions 613768...

  • Page 53: Table 5-2: Main Power Connector Pinout

    Mechanical Table 5-2: Main Power Connector Pinout Signal Color Signal Color PS_ON# Green PWR_OK Gray Black +12VSB Purple Black +12V1 DC Yellow Black +12V1 DC Yellow +12V1 DC Yellow I_PSU% Blue [Brown] [12V Sensing Pin] This power connector is designed as the main board connector and for smaller to medium size boards this is the only connector that is needed.

  • Page 54: Table 5-3: Extra Board Connector - Required Vs. Optional

    Mechanical Therefore, this connector is only required on PSU that are greater than 450 Watts. It is optional on PSU that is equal to or less than 450 Watts. Table 5-3: Extra Board Connector – Required vs. Optional Rated PSU Size Required vs.

  • Page 55: Table 5-6: +12V Power 8 Pin Connector Pinout

    Mechanical Table 5-6: +12V Power 8 pin Connector Pinout Signal Color Signal Color Black +12V2 DC Yellow Black +12V2 DC Yellow Black +12V2 DC Yellow Black +12V2 DC Yellow NOTE: 18 AWG wire. 5.2.2.4 PCI Express* (PCIe*) Add-in-Card Connectors (Recommended) These are optional connectors for the power supply to support additional power needed by any PCI Express* Add-in Card (AIC).

  • Page 56: Table 5-8: Pcie* 2X4 Auxiliary Power Connector Pin Assignment (150 Watts)

    Mechanical The Sense pin on the 2x3 auxiliary power connector must be connected to ground either directly in the power supply or via a jumper to an adjacent ground pin in the connector. This pin is used by a PCI Express 2x3 150 W/225 W/300 W Add-in Card to detect if the 2x3 auxiliary power connector is attached.

  • Page 57: Table 5-9: Pcie* 2X4 Auxiliary Power Connector Sense Pin Decoding By Aic

    Mechanical Table 5-9: PCIe* 2x4 Auxiliary Power Connector Sense Pin Decoding by AIC Sense1 Sense0 Description A 2x4 connector is plugged into the card. The card can draw Ground Ground up to 150 W from the auxiliary power connector Ground Open Reserved A 2x3 connector is plugged into the card.

  • Page 58: Figure 5-4: 12Vhpwr Cable Plug Connector

    Mechanical Figure 5-4: 12VHPWR Cable Plug Connector 613768...

  • Page 59: Figure 5-5: 12Vhpwr Cable Assembly

    Mechanical Figure 5-5: 12VHPWR Cable Assembly The cable plug connector housing for the 12VHPWR connector has all dimensions shown in mm. Slight changes to this connector that do not affect mating with its 613768...

  • Page 60: Figure 5-6: 12Vhpwr Cable Plug Connection Recommendation

    Mechanical associated plug may happen. Reference the latest PCI-SIG documentation for any updates concerning information about this connector. 12VHPWR Cable Plug Assembly Contact and Housing Details: • Housing Material: Thermoplastic Glass Fiber Filled, UL94V-0 • Color: Black • Pin Contact Material: Copper Alloy •...

  • Page 61: Table 5-10: Pcie* 12Vhpwr Auxiliary Power Connector Pin Assignment (600 Watts)

    Mechanical Table 5-10: PCIe* 12VHPWR Auxiliary Power Connector Pin Assignment (600 Watts) Signal Color Signal Color +12V3/V4 Yellow Black +12V3/V4 Yellow Black +12V3/V4 Yellow Black +12V3/V4 Yellow Black +12V3/V4 Yellow Black +12V3/V4 Yellow Black CARD_PWR_STABLE Blue SENSE0 Blue CARD_CBL_PRES# Blue SENSE1 Blue The electrical function for the sideband pins S1- S4 is detailed in Section...

  • Page 62: Connector From Motherboard To Storage Devices - Reference

    Two connector options listed below to support 2 drives or 4 drives per connector based on motherboard need. Both connector options follow the 3 mm ATX12VO SATA Power Header dual row vertical through hole product type. These connectors must support 5A per pin.

  • Page 63: Figure 5-7: 3 Mm Sata Power 4 Pin Mb Header - Motherboard Connector Diagram (Pin Locations And Latch Location)

    Mechanical Table 5-13: SATA MB Power 4 Pin Connector Pinout Max Amp Per Amp Per Conn Pin to Support Pin# Volts Color SATA HDD 2 SATA Devices Black 1.02 2.04 Black Yellow 1.02 2.04 The motherboard connection for this part does have 1 post that provides a mechanical key for the connection next to the last circuit, just like the 6-pin connector does.

  • Page 64: Figure 5-9: 3 Mm Sata Power 4 Pin Cable Connector - Key And Pin Locations

    Mechanical Figure 5-9: 3 mm SATA Power 4 Pin Cable Connector – Key and Pin Locations SATA - 4 pin power cable that supports two SATA drives per cable is available from the following companies. Table 5-14: 2 SATA Power Cable Part Numbers Company 2 SATA Drive Cable JOINT TECH ELECTRONIC*...

  • Page 65: Figure 5-10: 3 Mm Sata Power 6 Pin Mb Header - Recommended Pcb Layout

    Mechanical Table 5-15: 3 mm SATA Power 6 Pin Connector Part Numbers Motherboard Connector SATA Power Cable Connector Company Part Number Part Number Amphenol* 10157705-061B2GLF 10157706-06B20LF Foxconn* HMHA030-L2G31-4G JOINT TECH ELECTRONIC* C3030WVF-F-2X03PNLBM1N00B C3030HFF-2X03PN0BNPN00G Lotes* APOW0042-P001A01 ABA-WAF-896-P01 Wieson* AC2211-0009-002-HH AB9001-0009-002-00 More connectors options may exist; Work with your preferred connector company to verify if they can provide the connector described in this document.

  • Page 66: Figure 5-11: 3 Mm Sata Power 6 Pin Mb Header - Keying And Pin Locations

    Mechanical Figure 5-11: 3 mm SATA Power 6 Pin MB Header – Keying and Pin Locations Cable design diagram. Both pins 2 and 5 would need to have 2 wires coming out of the one pin. Top view shows which cable is connected to each pin. Figure 5-12: 3 mm SATA Power 6 pin/4 SATA Device Cable Diagram (Connector Top View) Figure 5-13: 3 mm SATA Power 6 Pin Cable Connector –...

  • Page 67: Serial Ata Connectors (Reference)

    Mechanical Figure 5-14: 3 mm SATA Power 6 Pin Cable Connector – Key and Pin Locations (Bottom View) SATA - 6 pin power cable that supports 4 SATA drives per cable is available from the following companies. Table 5-17: SATA Power Cable Supporting 4 SATA Devices Part Numbers SATA Power Cable Supporting Company 4 SATA Devices...

  • Page 68: Figure 5-15: Serial Ata Power Connector

    Mechanical Table 5-18: Serial ATA Power Connector Pinout Wire Signal Color Black +5V DC Black +12V1 DC Yellow NOTES: 18 AWG wire. +3.3V DC is removed from SATA V3.2 spec. Figure 5-15: Serial ATA Power Connector 613768...

  • Page 69: Airflow And Fans (Recommended)

    Mechanical Airflow and Fans (Recommended) The designer's choice of a power supply cooling solution depends in part on the targeted end-use system application(s). At a minimum, the power supply design shall ensure its own reliable and safe operation. 5.4.1 Fan Location and Direction In general, exhausting air from the system chassis enclosure via a power supply fan at the rear panel is the preferred, most common, and most widely applicable system- level airflow solution.
  • Page 70 Mechanical The limitations to the venting guidelines above are: • Openings must be sufficiently designed to meet the safety requirements described in Section 9. • Larger openings yield decreased EMI-shielding performance. Refer to Section 8. • Venting in inappropriate locations can detrimentally allow airflow to bypass those areas where it is needed.

  • Page 71: Acoustics

    Acoustics Acoustics It is recommended that the power supply be designed with an appropriate fan, internal impedance, and fan speed control circuitry capable of meeting the acoustic targets listed in the below table. The power supply assembly should not produce any prominent discrete tone determined according to ISO 7779, Annex D.

  • Page 72: Environmental

    Environmental Environmental The following subsections define environmental specifications and test parameters, based on the typical conditions to which a power supply may be subjected during operation or shipment. Temperature (Recommended) • Operating ambient +10 °C to +50 °C (At full load, with a maximum temperature rate of change of 5 °C/10 minutes, but no more than 10 °C/hr) •...

  • Page 73: Random Vibration (Recommended)

    Environmental Random Vibration (Recommended) • 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 curve is 3.13 gRMS. The duration shall be 10 minutes per axis for all three axes on all samples. §§...

  • Page 74: Electromagnetic Compatibility

    Electromagnetic Compatibility Electromagnetic Compatibility The following subsections outline applicable product regulatory requirements for the power supplies. Additional requirements may apply dependent upon the design, product end use, target geography, and other variables. Emissions (Required) The power supply shall comply with FCC Part 15, EN55023 and CISPR 22, 5th ed., meeting Class B for both conducted and radiated emissions with a 4 dB margin.

  • Page 75: Voltage Fluctuations And Flicker (Required)

    Electromagnetic Compatibility Voltage Fluctuations and Flicker (Required) The power supply shall meet the specified limits of EN61000-3-3 (IEC 61000-3-3) and amendment A1 to EN 61000-3-3 (IEC 61000-3-3/A1) for voltage fluctuations and flicker for equipment drawing not more than 16VAC, connected to low voltage distribution systems.

  • Page 76: Safety

    Safety Safety The following subsections outline sample product regulations requirements for a typical power supply. Actual requirements will depend on the design, product end use, target geography, and other variables. Consult your company’s Product Safety and Regulations department or an accredited third-party certification agency for more details.

  • Page 77: Proscribed Materials (Required)

    Safety The power supply must meet the RoHS requirements for the European Union, Peoples Republic of China and other countries which have adopted the RoHS requirements for banned materials. Proscribed Materials (Required) The following materials must not be used during design and/or manufacturing of this product: •...

  • Page 78: Reliability

    PSU reliability, but also be a source of end user annoyance with PSU fan spinning on then off again. In order to optimize desktop platform power consumption, Intel provides design recommendation to enable power supply PS_ON# toggle on/off during S0 idle power mode (S0ix) to save both system and PSU power.

  • Page 79: Cfx12V Specific Guidelines 2.0

    CFX12V Specific Guidelines 2.0 CFX12V Specific Guidelines 2.0 For Compact Form Factor with 12-volt connector power supplies. Mechanical dimension of power supplies has not changed from Multi Rail Desktop Power Supplies, so chassis do need not to change. Below are the current specifications for each size: PSU DG CFX12V...

  • Page 80: Lfx12V Specific Guidelines 2.0

    LFX12V Specific Guidelines 2.0 LFX12V Specific Guidelines 2.0 For Low Profile Form Factor with 12-volt connector power supplies. Mechanical dimension of power supplies has not changed from Multi Rail Desktop Power Supplies, so chassis do need not to change. Below are the current specifications for each size: PSU DG CFX12V...

  • Page 81: Figure 12-2: Lfx 12V Mechanical Details

    LFX12V Specific Guidelines 2.0 Figure 12-2: LFX 12V Mechanical Details Figure 12-3: LFX 12V PSU Slot Feature Detail 613768...

  • Page 82: Figure 12-4: Lfx 12V Recommended Chassis Tab Feature

    LFX12V Specific Guidelines 2.0 Figure 12-4: LFX 12V Recommended Chassis Tab Feature §§ 613768...

  • Page 83: Atx12V Specific Guidelines 3.0

    ATX12V Specific Guidelines 3.0 ATX12V Specific Guidelines 3.0 For ATX Form Factor with 12-volt connector power supplies. Mechanical dimension of power supplies has not changed from Multi Rail Desktop Power Supplies, so chassis do need not to change. Below are the current specifications for each size: PSU DG CFX12V...

  • Page 84: Figure 13-2: Atx12V Power Supply Dimensions For Chassis That Require Top Venting

    ATX12V Specific Guidelines 3.0 Figure 13-2: ATX12V Power Supply Dimensions for Chassis that Require Top Venting §§ 613768...

  • Page 85: Sfx12V Specific Guidelines 4.0

    SFX12V Specific Guidelines 4.0 SFX12V Specific Guidelines 4.0 For Small Form Factor with 12-volt connector power supplies. Mechanical dimension of power supplies has not changed from Multi Rail Desktop Power Supplies, so chassis do need not to change. Below are the current specifications for each size: PSU DG CFX12V...

  • Page 86: Figure 14-1: Sfx12V 40 Mm Profile Mechanical Outline

    SFX12V Specific Guidelines 4.0 Figure 14-1: SFX12V 40 mm Profile Mechanical Outline Figure 14-2: SFX121V Chassis Cutout 613768...

  • Page 87: Top Fan Mount Package - Physical Dimensions (Required)

    SFX12V Specific Guidelines 4.0 14.3 Top Fan Mount Package – Physical Dimensions (Required) The power supply shall be enclosed and meet the physical outline shown in Figure 14-3. 14.4 Fan Requirements (Required) The fan will draw air from the computer system cavity pressurizing the power supply enclosure.

  • Page 88: Figure 14-3: Sfx12V Top Mount Fan Profile Mechanical Outline

    SFX12V Specific Guidelines 4.0 SFX12V Figure 14-3: Top Mount Fan Profile Mechanical Outline 613768...

  • Page 89: Reduced Depth Top Mount Fan - Physical Dimensions (Required)

    SFX12V Specific Guidelines 4.0 Figure 14-4: SFX12V Chassis Cutout Figure 14-5: SFX12V Recessed Fan Mounting 14.5 Reduced Depth Top Mount Fan – Physical Dimensions (Required) The power supply shall be enclosed and meet the physical outline shown in the below figure.

  • Page 90: Figure 14-6: Sfx12V Reduced Depth Top Mount Fan Profile Mechanical Outline

    SFX12V Specific Guidelines 4.0 Figure 14-8. Moving the fan to the computer system cavity helps to limit the acoustic noise of the unit. The fan will be 80 mm. Figure 14-6: SFX12V Reduced Depth Top Mount Fan Profile Mechanical Outline 613768...

  • Page 91: Standard Sfx Profile Package - Physical Dimensions (Required)

    SFX12V Specific Guidelines 4.0 Figure 14-7: SFX12V Top Mount Fan, Inside enclosure Mechanical Outline (Possible Larger Fan) SFX12V Figure 14-8: Chassis Cutout 14.7 Standard SFX Profile Package – Physical Dimensions (Required) The power supply shall be enclosed and meet the physical outline shown in the above figure.

  • Page 92: Figure 14-9: Sfx12V 60 Mm Mechanical Outline

    SFX12V Specific Guidelines 4.0 The fan will be 60 mm. Figure 14-9: SFX12V 60 mm Mechanical Outline 613768...

  • Page 93: Ps3 Form Factor - Physical Dimensions (Required)

    SFX12V Specific Guidelines 4.0 Figure 14-10: SFX12V Chassis Cutout 14.9 PS3 Form Factor – Physical Dimensions (Required) The power supply shall be enclosed and meet the physical outline shown in Figure 14-11. 14.10 Fan Requirements (Required) An 80 mm axial fan is typically needed to provide enough cooling airflow through a high performance Micro ATX system.

  • Page 94: Figure 14-11: Sfx12V Ps3 Mechanical Outline

    SFX12V Specific Guidelines 4.0 Figure 14-11: SFX12V PS3 Mechanical Outline §§ 613768...

  • Page 95: Tfx12V Specific Guidelines 3.0

    TFX12V Specific Guidelines 3.0 TFX12V Specific Guidelines 3.0 For Thin Form Factor with 12-volt connector power supplies. Mechanical dimension of power supplies has not changed from Multi Rail Desktop Power Supplies, so chassis do need not to change. Below are the current specifications for each size: PSU DG CFX12V...

  • Page 96: Figure 15-2: Tfx12V Dimensions And Recommended Feature Placements

    TFX12V Specific Guidelines 3.0 Figure 15-2: TFX12V Dimensions and Recommended Feature Placements (Not to Scale) 613768...

  • Page 97: Mounting Options (Recommended)

    TFX12V Specific Guidelines 3.0 Figure 15-3: TFX12V Power Supply Mounting Slot Detail 15.2 Mounting Options (Recommended) The TFX12V mechanical design provides two options for mounting in a system chassis. The unit can be mounted using one of the mounting holes on the front end (non- vented end) or a chassis feature can be designed to engage the slot provided in the bottom of the supply.

  • Page 98: Chassis Requirements (Recommended)

    TFX12V Specific Guidelines 3.0 Figure 15-4: TFX12V Fan Right and Fan Left Orientations of Power Supply in Chassis 15.3 Chassis Requirements (Recommended) To ensure the power supply can be easily integrated, the following features should be designed into a chassis intended to use a TFX12V power supply: •...

  • Page 99: Figure 15-6: Tfx12V Suggested Mounting Tab (Chassis Feature)

    TFX12V Specific Guidelines 3.0 Figure 15-6: TFX12V Suggested Mounting Tab (Chassis Feature) §§ 613768...

  • Page 100: Flex Atx Specific Guidelines 2.0

    Flex ATX Specific Guidelines 2.0 Flex ATX Specific Guidelines 2.0 For Flex ATX Form Factor with 12-volt connector power supplies. Mechanical dimension of power supplies has not changed from Multi Rail Desktop Power Supplies, so chassis do need not to change. Below are the current specifications for each size: PSU DG CFX12V...

  • Page 101: Figure 16-2: Flex Atx Dimensions And Recommended Feature Placements (Not To Scale)

    Flex ATX Specific Guidelines 2.0 Figure 16-2: Flex ATX Dimensions and Recommended Feature Placements (Not to Scale) §§ 613768...

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