Asus P2L97-DS User Manual page 35

III. INSTALLATION
21. Chassis Open Alarm Lead (CHASSIS)
This lead is for an open chassis monitor. A high level signal to the CHASSIS
lead will indicate to the system that the chassis has been opened. This function is
available only with the optional hardware monitor (LM78) installed.
Chassis Open Alarm Lead
ASUS P2L97-DS User's Manual
+5 Volts
Chassis Signal
Ground
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