Atx12V Power Connector; Rear Chassis Fan Connector; Processor Fan Connector - Intel D845HV Technical Product Specification

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
1 Ground
2 Ground
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
Pin Signal Name
3 +12 V
4 +12 V
Technical Reference
59