Atx12V Power Connector; Processor Fan Connector; Main Power Connector - Intel D848PMB Specification

Intel Desktop Board D848PMB Technical Product Specification
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INTEGRATOR'S NOTES
•
Use only ATX12V-, SFX12V-, or TFX12V-compliant power supplies with the Desktop Board
D848PMB. ATX12V, SFX12V, and TFX12V power supplies have an additional power lead
that provides required supplemental power for the processor. Always connect the 20-pin and
4-pin leads of ATX12V, SFX12V, and TFX12V power supplies to the corresponding connectors
on the desktop board, otherwise the board will not boot.
•
Do not use a standard ATX power supply. The board will not boot with a standard ATX power
supply.
Table 24.

ATX12V Power Connector

Pin Signal Name
1 Ground
3 +12 V
Table 25.

Processor Fan Connector

Pin Signal Name
1 Control (optional)
2 +12 V
3 CPU_FAN_TACH
Table 26.

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
56
Pin Signal Name
2 Ground
4 +12 V
Pin Signal Name
11 +3.3 V
12 -12 V
13 Ground
14 PS-ON# (power supply remote on/off)
15 Ground
16 Ground
17 Ground
18 No connect
19 +5 V
20 +5 V