Manual for S4 series
Chapter 2
Chassis Security Switch (CHSSEC)(Reserved)
The connector connects to the chassis security switch on the case. The system can
detect the chassis intrusion through the status of this connector. If the case has been
opened , the system will record the status and indicate the chassis has been opened.
1
CHSSEC
GND
Indicate signal
Fan Connectors ( CPUFAN, CHSFAN, BAKFAN)
The fan speed of CPUFAN and CHSFAN can be detected and viewed in PC Health
section of the BIOS. These three fans will be automatically turned off after the system
enters suspend mode.
PWRFAN
CPUFAN
FAN GND
SENSE
+12V
CHSFAN
FAN GND
+12V
SENSE
BAKFAN
FAN GND
+12V
SENSE
