Intel DH57DD Product Specification - Page 46

Add-in Card Connectors, 2.2.3, Power Supply Connectors, CAUTION - voltage regulators

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Intel Desktop Board DH57DD Technical Product Specification 2.2.2.2 Add-in Card Connectors The board has one PCI Express 2.0 x16 connector. This connector supports simultaneous transfer speeds of up to 8 GB/s of peak bandwidth. 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, pins 11, 12, 23, and 24 must remain 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. CAUTION If a high power (75 W or greater) add-in card is installed in the PCI Express x16 connector, that card must also be connected directly to the power supply. Failure to do so may cause damage to the board and the add-in card. Table 26. Processor Core Power Connector Pin Signal Name Pin Signal Name 1 Ground 2 Ground 3 +12 V 4 +12 V 46

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Intel Desktop Board DH57DD Technical Product Specification
46
2.2.2.2
Add-in Card Connectors
The board has one PCI Express 2.0 x16 connector.
This connector supports
simultaneous transfer speeds of up to 8 GB/s of peak bandwidth.
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, pins 11, 12, 23, and
24 must remain 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.
CAUTION
If a high power (75 W or greater) add-in card is installed in the PCI Express x16
connector, that card must also be connected directly to the power supply.
Failure to
do so may cause damage to the board and the add-in card.
Table 26.
Processor Core Power Connector
Pin
Signal Name
Pin
Signal Name
1
Ground
2
Ground
3
+12 V
4
+12 V