Intel 0.9 3.3 Typical Power Distribution, Table 4: Typical Power Distribution for a 160 W Configuration, Table 5: Typical Power Distribution for a 200 W Configuration

Intel ATX Power Supply Design Guide

Version 0.9

3.3 Typical Power Distribution

Although power requirements and distributions will depend on the specific system options and implementation, this section identifies several potential configurations. For a single processor mini-tower configuration with one ISA slot, three PCI slots, one shared slot, and six peripheral bays, a minimum 160 W sustained (200 W peak) power supply should be sufficient for a typical application. For a full tower, dual processor configuration with one ISA slot, five PCI slots, one shared slot, and six peripheral bays, a 300 W sustained power supply should be sufficient. Tables 4, 5, 6, and 7 list the suggested power distribution for various configurations and applications.

Table 4: Typical Power Distribution for a 160 W Configuration

	Min.	Max.	Peak
	Current	Current	Current
Output	(amps)	(amps)	(amps)	Notes:
+12VDC	0.0	6.0	8.0
+5VDC	1.0	18.0		+3.3VDC and +5VDC combined power 110 W max
+3.3VDC	0.3	14.0		Pin 11 default +3.3 V sense required
-5VDC	0.0	0.3
-12VDC	0.0	0.8
+5VSB	0.0	0.72		See Section 3.4.3.

Table 5: Typical Power Distribution for a 200 W Configuration

	Min.	Max.	Peak
	Current	Current	Current
Output	(amps)	(amps)	(amps)	Notes:
+12VDC	0.0	6.0	8.0
+5VDC	1.0	21.0		+3.3VDC and +5VDC combined power 125 W Max
+3.3VDC	0.3	14.0		Pin 11 default +3.3 V sense required
-5VDC	0.0	0.3
-12VDC	0.0	0.8
+5VSB	0.0	0.72		See Section 3.4.3.

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