Intel Socket 478 AIMB-744 - Manual (Page 41)

27 Chapter 2
2.18 8-pin Alarm Board Connector (CN62)
The 8-pin alarm board connector is for Advantech chassis with alarm
board.
2.19 Case Open Connector (CN64)
The 2-pin case open connector is for chassis with case open censor. While
opening the case, the buzzer on motherboard will ring.
2.20 Serial ATA interface (SA0 and SA1)
In addition to the two EIDE interfaces (up to four devices), the AIMB-
744 features high performance serial ATA interface (up to 150MB/s)