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