Processor Core Power Connector; Main Power Connector - Intel BOXDB43LD - B43 Chipset Executive Series Manual

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
1 Ground
3 +12 V
Table 19. Main Power Connector
Pin Signal Name
1 +3.3 V
2 +3.3 V
3 Ground
4 +5 V
5 Ground
6 +5 V
7 Ground
8 PWRGD (Power Good)
9 +5 V (Standby)
10 +12 V
(Note)
11 +12 V
12 2 x 12 connector detect
Note: When using a 2 x 10 power supply cable, this pin will be unconnected.
For information about
Power supply considerations
50
Pin Signal Name
2 Ground
4 +12 V
Pin Signal Name
13 +3.3 V
14 -12 V
15 Ground
16 PS-ON# (power supply remote on/off)
17 Ground
18 Ground
19 Ground
20 No connect
21 +5 V
22 +5 V
23 +5 V
(Note)
24 Ground
(Note)
(Note)
Refer to
Section 2.5.1, page 58