ATX Version 3.0 Multi Rail Desktop Platform Power Supply
Remote Sensing - RECOMMENDED
Remote sensing is recommended. Remote sensing can accurately control motherboard loads by adding it to the PSU connector. The +3.3 VDC output should have provisions for remote sensing to compensate for excessive cable drops. In low power PSU, remote sensing is recommended. The default sense should be connected to pin 13 of the main power connector. Refer Figure 5-2. The power supply should draw no more than 10 mA through the remote sense line to keep DC offset voltages to a minimum.