Intel DH57DD Product Specification - Page 54
Electrical Considerations
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Intel Desktop Board DH57DD Technical Product Specification 2.5 Electrical Considerations 2.5.1 Power Supply Considerations CAUTION The +5 V standby line from the power supply must be capable of providing adequate +5 V standby current. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. Additional power required will depend on configurations chosen by the integrator. The power supply must comply with the indicated parameters of the ATX form factor specification. • The potential relation between 3.3 VDC and +5 VDC power rails • The current capability of the +5 VSB line • All timing parameters • All voltage tolerances For example, for a system consisting of a supported 87 W TDP processor (see Section 1.4 on page 14 for information on supported processors), up to 16 GB DDR3 memory, integrated graphics, one hard disk drive, one optical drive, and all board peripherals enabled, the minimum recommended power supply is about 260 W with current ratings as listed in Table 32 Table 32. Recommended Power Supply Current Values Output Voltage 3.3 V 5 V 12 V1 12 V2 -12 V Current 12 A 18 A 14 A 16 A 0.3 A 5 VSB 2 A NOTE +12 V1 denotes the 12 V rail at the 2 x 12 power connector. +12 V2 denotes the 12 V rail at the 2 x 2 power connector. For information about Selecting an appropriate power supply Refer to http://www.intel.com/support/motherboards/desktop/sb/C S-026472.htm 54