Foxconn A74ML 3.0 Series User Manual page 23

Speaker Connector : SPeAKeR
The speaker connector is used to connect speaker of
the chassis.
EMPTY
fan Connectors : CPU_fAN, SYS_fAN
There are two main fan headers on this motherboard.
The fan speed can be controlled and monitored in "PC
Health Status" section of the BIOS Setup. These fans
can be automatically turned off after the system enters
S3, S4 and S5 sleeping states.
1
CPU_FAN/SYS_FAN
1
SPKJ
2
NC
3
SPKJ
4
SPEAKER
GND
POWER
SENSE
CONTROL
16