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PC Interfaces 101

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Power Connectors And ATX Standards

The various types of power connections are shown in the following tables and illustrations.

Peripheral device connector
AMD
Socket 462
Power Supply Standard ATX12V 1.3 or higher
ATX plug 20-pin
AUX plug (6-pin) not used
P4 connector (4-pin 12V) rarely used
Socket 754
Power Supply Standard ATX12V 1.3 or higher
ATX plug 20-pin, sometimes 24-pin
AUX plug (6-pin) not used
P4 connector (4-pin 12V) sometimes needed
Socket 939
Power Supply Standard ATX12V 1.3 or higher
ATX plug 20-pin, sometimes 24-pin
AUX plug (6-pin) not used
P4 connector (4-pin 12V) sometimes needed
Intel
Socket 370
Power Supply Standard ATX12V 1.3 or higher
ATX plug 20-pin
AUX plug (6-pin) rarely used
P4 connector (4-pin 12V) rarely used
Socket 423
Power Supply Standard ATX12V 1.3 or higher
ATX plug 20-pin
AUX plug (6-pin) rarely used
P4 connector (4-pin 12V) needed
Socket 478
Power Supply Standard ATX12V 1.3 or higher
ATX plug 20-pin
AUX plug (6-pin) not used
P4 plug (4-pin 12V) needed
Socket 775
Power Supply Standard ATX12V 2.01 or higher
ATX plug 24-pin, sometimes 20-pin
AUX plug (6-pin) n/a
P4 plug (4-pin 12V) needed
P4 plug (8-pin 12V) 945X chipset (DualCore) or higher often needs this connection

ATX plug with 24 pins (Extented ATX)

20-pin ATX motherboard connector

20-pin ATX cable

6-pin EPS connector
Previous Next
Summary
  1. Males And Females Must Fit Together
  2. Connector Table
  3. External: Connectors For External Peripherals
  4. IEEE-1394 / Firewire / i.Link
  5. Cinch RCA (Composite, Audio, HDTV Components)
  6. PS/2
  7. VGA Monitor Interface
  8. DVI Monitor Interface
  9. RJ45 For LAN And ISDN
  10. RJ11 For Modems And Telephony
  11. S-Video (Hosiden, Y/C)
  12. SCART
  13. HDMI
  14. Inside The Box: Connections Inside A PC System
  15. ATA/133 (Parallel ATA, UltraDMA/133 Or E-IDE)
  16. AGP - Accelerated Graphics Port
  17. PCI Express: The Serial Bus
  18. PCI And PCI-X: The Parallel Buses
  19. Power Connectors And ATX Standards
  20. Power Connectors And ATX Standards, Continued
About the author
Uwe Scheffel
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  • Anonymous
    All of the captions are attached to the wrong pictures.
    Ugh.

    *PLEASE* leave a few blank lines between.
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