Apple Macintosh Performa 577 - Manual (Page 82)

Take Apart Chassis Harness Assembly - 47
facing the front of the chassis and the power cables
facing toward the outside edge of the chassis. Slip the
connector extension through the slot in the side of the
chassis and slide the connector into place.
8 Position the hard drive connector with the connector slot
facing the rear of the chassis and the power cables facing
toward the outside edge of the chassis. Slip the connector
extension through the slot in the side of the chassis and
slide the connector into place.
9 Position the analog board connector with the connector
slot facing the rear and the power cables facing toward
the outside edge of the chassis. You will have to route the
cable under the connector (between the connector and the
cable bridge). Slightly push forward one of the keyed
tabs and slide the connector into place.