Fan Connectors (Cpufan, Chsfan , Bakfan); Chassis Security Switch (Chssec) - QDI Superb 4L Manual

Chapter 2
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.

Ž
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.
Œ
10
ΠCPUFAN
 BAKFAN
FAN GND
Œ
Ž CHSFAN
FAN GND
1
ΠCHSSEC
Manual for S4L series
SENSE
+12V
FAN GND
SENSE
+12V
SENSE
+12V
Indicate signal
GND