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Intel® Desktop Boards have two power supply connectors, main power and processor core power.
Main power
The connector for the main power is 2 x 12, and 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 leftmost pins of the main power connector, leaving pins 11, 12, 23, and 24 unconnected.
Main power connector pin-out
| 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 |
23 |
+5 V |
| 12 |
2x12 connector detect |
24 |
Ground | |
12V processor core voltage connector
The 12V processor core voltage connector is either a 2 x 2 or a 2 x 4 connector (depending on board model) that provides power directly to the processor voltage regulator. Always use this connector. Failure to do so will prevent the board from booting.
2 x 2 processor core voltage connector pin-out 
| Pin |
Signal Name |
Pin |
Signal Name |
| 1 |
Ground |
2 |
Ground |
| 3 |
+12 V |
4 |
+12 V | |
2 x 4 processor core voltage connector pin-out 
| 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 | |
This applies to:
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