Atx12V Power Connector; Processor Fan Connector - Intel D845GBV Product Supplement Document

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INTEGRATOR'S NOTES
•
Use only ATX12V-compliant power supplies with the Desktop Board D845GBV. ATX12V
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 power supplies
to the corresponding connectors on the Desktop Board, otherwise the Desktop Board will
not boot.
•
Do not use a standard ATX power supply. The Desktop Board will not boot with a
standard ATX power supply.
Table 8.

ATX12V Power Connector

Pin Signal Name
1 Ground
3 +12 V
Table 9.

Processor Fan Connector

Pin Signal Name
1 (Note)
2 +12 V
3 CPU_FAN_TACH
Note: Pin 1 is Control if the Desktop Board uses the hardware monitoring and fan control ASIC.
Pin 1 is Ground if the Desktop Board uses the hardware monitoring ASIC.
Product-Specific Features
Pin Signal Name
2 Ground
4 +12 V
17