Intel D845PEBT2 Product Specification - Page 59
Table 30., ATX12V Power Connector, Table 31., Rear Chassis Fan Connector, Table 32., Processor Fan
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Technical Reference ✏ NOTE Do not use a standard ATX power supply. The Desktop Board D845PEBT2 will not boot with a standard ATX power supply. Use only ATX12V-compliant power supplies with the Desktop Board D845PEBT2. ATX12V power supplies have an additional power lead that provides required supplemental power for the Intel Pentium 4 processor. The Desktop Board D845PEBT2 will not boot if the ATX12V power supply is not connected to both the 4-pin and 20-pin power connectors. For information about The power connector The functions of the fan connectors Refer to Section 1.16.2.1, page 41 Section 1.16.2.2, page 41 Table 30. ATX12V Power Connector Pin Signal Name 1 Ground 3 +12 V Pin Signal Name 2 Ground 4 +12 V Table 31. Rear Chassis Fan Connector Pin Signal Name 1 Control 2 VREG_12V_POWER 3 REAR_FAN_TACH Table 32. Processor Fan Connector Pin Signal Name 1 Control 2 +12 V 3 CPU_FAN_TACH 59