Intel DB43LD Product Specification - Page 50
Power Supply Connectors
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Intel Desktop Board DB43LD Technical Product Specification 2.2.2.3 Power Supply Connectors The board has the following power supply connectors: • Main power - a 2 x 12 connector. This connector is compatible with 2 x 10 connectors previously used on Intel Desktop boards. The board supports the use of ATX12V power supplies with either 2 x 10 or 2 x 12 main power cables. When using a power supply with a 2 x 10 main power cable, attach that cable on the rightmost pins of the main power connector, leaving pins 11, 12, 23, and 24 unconnected. • Processor core power - a 2 x 2 connector. This connector provides power directly to the processor voltage regulator and must always be used. Failure to do so will prevent the board from booting. Table 18. Processor Core Power Connector Pin Signal Name Pin Signal Name 1 Ground 3 +12 V 2 Ground 4 +12 V Table 19. Main Power Connector Pin Signal Name 1 +3.3 V 2 +3.3 V 3 Ground 4 +5 V Pin Signal Name 13 +3.3 V 14 -12 V 15 Ground 16 PS-ON# (power supply remote on/off) 5 Ground 6 +5 V 7 Ground 8 PWRGD (Power Good) 17 Ground 18 Ground 19 Ground 20 No connect 9 +5 V (Standby) 10 +12 V 11 +12 V (Note) 12 2 x 12 connector detect (Note) 21 +5 V 22 +5 V 23 +5 V (Note) 24 Ground (Note) Note: When using a 2 x 10 power supply cable, this pin will be unconnected. For information about Power supply considerations Refer to Section 2.5.1, page 58 50