D5400XS Technical Product Specification

Intel Desktop Board D5400XS 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 SSI/EATX 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 two supported 150 W processors (see

Section

1.4 on page 15 for a list of supported processors), 16 GB DDR2 RAM, three

high end video cards, six hard disk drives, one optical drive, and all board peripherals

enabled, the minimum recommended power supply is 1200 W.

Table 27 lists the

recommended power supply current values.

Table 27. Recommended Power Supply Current Values

Output Voltage 3.3 V 5 V 12 V1 12 V2 -12 V 5 VSB

Current 30 A 30 A 20 A 36 A 0.8 A 3.5 A

For information about Refer to

Selecting an appropriate power supply http://support.intel.com/support/motherboards/desktop/sb

/CS-026472.htm