ATX Version 3.0 Multi Rail Desktop Platform Power Supply

Design Guide

ID 336521
Date 01/02/2022
Version 2.0
Public
Document Table of Contents

Capacitive Load – RECOMMENDED

The power supply should be able to power up and operate within the regulation limits defined in Table 4-2, with the following capacitances simultaneously present on the DC outputs. These Capacitive Loads are to simulate what a motherboard / system provides when connected to a power supply.

Table 4-7: Output Capacitive Loads

Output

Capacitive Load (μF)

+12V1DC

3,300

+12V2DC

3,300

+5VDC

3,300

+3.3VDC

3,300

-12VDC

330

+5VSB

3,300