11
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Chapter 2
Chapter 2
Chapter 2
Chapter 2
Chapter 2
Fan Connectors (PWR_FAN, CPU_FAN, SYS_FAN(optional))
The fan speed of these three fans can be detected and viewed in “PC Health” section of the
CMOS SETUP.
Intruder Detect Switch(JINTR)(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 connector has been closed
once, the system will send a message over the network to alert the network manager through
the on board LAN controller within ICH4.
SYS_FAN
SENSE
+12V
GND
+12V
CPU_FAN
SENSE
GND
PWR_FAN
+12V
GND
SENSE
JINTR
GND
Indicate signal
1
