Intel D848PMB Technical Product Specification - Page 56
Integrator, S Notes
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Intel Desktop Board D848PMB Technical Product Specification # INTEGRATOR'S NOTES • Use only ATX12V-, SFX12V-, or TFX12V-compliant power supplies with the Desktop Board D848PMB. ATX12V, SFX12V, and TFX12V power supplies have an additional power lead that provides required supplemental power for the processor. Always connect the 20-pin and 4-pin leads of ATX12V, SFX12V, and TFX12V power supplies to the corresponding connectors on the desktop board, 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 24. ATX12V Power Connector Pin Signal Name 1 Ground 3 +12 V Pin Signal Name 2 Ground 4 +12 V Table 25. Processor Fan Connector Pin Signal Name 1 Control (optional) 2 +12 V 3 CPU_FAN_TACH Table 26. Main Power Connector Pin Signal Name 1 +3.3 V 2 +3.3 V 3 Ground 4 +5 V 5 Ground 6 +5 V 7 Ground 8 PWRGD (Power Good) 9 +5 V (Standby) 10 +12 V Pin Signal Name 11 +3.3 V 12 -12 V 13 Ground 14 PS-ON# (power supply remote on/off) 15 Ground 16 Ground 17 Ground 18 No connect 19 +5 V 20 +5 V 56
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