Intel D945GNT Product Specification - Page 62

Power Supply Connectors, INTEGRATOR'S NOTE

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Intel Desktop Board D945GNT Technical Product Specification 2.8.2.2 Power Supply Connectors The board has 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. • ATX12V 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. # INTEGRATOR'S NOTE When using high wattage PCI Express x16 graphics cards, use a power supply with a 2 x 12 main power cable. The 2 x 12 main power cable can provide up to 144 W of power from the +12 V rail. Table 26. Main Power Connector Pin Signal Name Pin Signal Name 1 +3.3 V 13 +3.3 V 2 +3.3 V 14 -12 V 3 Ground 15 Ground 4 +5 V 16 PS-ON# (power supply remote on/off) 5 Ground 17 Ground 6 +5 V 18 Ground 7 Ground 19 Ground 8 PWRGD (Power Good) 20 No connect 9 +5 V (Standby) 21 +5 V 10 +12 V 11 +12 V (Note) 12 2 x 12 connector detect (Note) 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. Table 27. ATX12V Power Connector Pin Signal Name 1 Ground 3 +12 V Pin Signal Name 2 Ground 4 +12 V 62

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Intel Desktop Board D945GNT Technical Product Specification
62
2.8.2.2
Power Supply Connectors
The board has 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.
•
ATX12V 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.
INTEGRATOR’S NOTE
When using high wattage PCI Express x16 graphics cards, use a power supply with a 2 x 12 main
power cable.
The 2 x 12 main power cable can provide up to 144 W of power from the +12 V rail.
Table 26.
Main Power Connector
Pin
Signal Name
Pin
Signal Name
1
+3.3 V
13
+3.3 V
2
+3.3 V
14
-12 V
3
Ground
15
Ground
4
+5 V
16
PS-ON# (power supply remote on/off)
5
Ground
17
Ground
6
+5 V
18
Ground
7
Ground
19
Ground
8
PWRGD (Power Good)
20
No connect
9
+5 V (Standby)
21
+5 V
10
+12 V
22
+5 V
11
+12 V
(Note)
23
+5 V
(Note)
12
2 x 12 connector detect
(Note)
24
Ground
(Note)
Note:
When using a 2 x 10 power supply cable, this pin will be unconnected.
Table 27.
ATX12V Power Connector
Pin
Signal Name
Pin
Signal Name
1
Ground
2
Ground
3
+12 V
4
+12 V