TYAN S1570 AT User Manual page 19

Align the plastic guide pins on the lead cables to their receptacles on the
mainboard. You may need to hold the lead at an angle to line it up.Once
you have the guide pins aligned, press the lead connector so that the
plastic clips on the lead snap into place and secure the lead to the connec-
tor.
Connecting 5V power supply
S1570-001-01 http://www.tyan.com 19