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Technical Reference

✏

NOTE

Use only ATX12V- or SFX12V-compliant power supplies with the D845HV and D845WN boards.

ATX12V and SFX12V power supplies have an additional power lead that provides required

supplemental power for the Intel Pentium 4 processor. Always connect the 20-pin and 4-pin leads

of ATX12V and SFX12V power supplies to the corresponding connectors on the D845HV and

D845WN boards, 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 29. ATX12V Power Connector

Pin Signal Name Pin Signal Name

1 Ground 3 +12 V

2 Ground 4 +12 V

✏

NOTE

The board will not boot if the ATX12V power connector is not attached to the board.

Table 30. Rear Chassis Fan Connector

Pin Signal Name

1 Ground

2 VREG_12V_POWER

3 REAR_FAN_TACH

Table 31. Processor Fan Connector

Pin Signal Name

1 Ground

2 VREG_12V_POWER

3 FAN_TACH

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 152 153

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