Premio-computer Apollo/Shadowhawk User Manual Page 84

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Technical Reference
61
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
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