Intel Desktop Board DP55WG Technical Product Specification
46
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 4 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.
•
Auxiliary PCI Express graphics power connector (SATA style) –
this
connector provides the required additional power when using high power (75 W or
greater) add-in cards in either or both the PCI Express x16 and the PCI Express x8
bus add-in card connectors. See Figure 1 for location.
CAUTION
If high power (75 W or greater) add-in cards are installed in either or both the
Secondary PCI Express x16 and the PCI Express x4 bus add-in card connectors, the
Auxiliary PCI Express graphics power connector must be used. Failure to do so may
cause damage to the board and the add-in cards.
Table 16. Processor Core Power Connector
Pin Signal
Name
Pin Signal
Name
1 Ground
2 +12
V
3 Ground
4 +12
V
5 Ground
6 +12
V
7 Ground
8 +12
V
