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Chapter 2: Hardware information
12. Hard disk activity LED connector (4-pin HDLED1)
ThisLEDconnectorisforthestorageadd-oncardcableconnectedtotheSATAor
SAS add-on card. The read or write activities of any device connected to the SATA or
SASadd-oncardcausesthefrontpanelLEDtolightup.
13. Chassis Intrusion (2-pin INTRUSION1)
These leads are for the intrusion detection feature for chassis with intrusion sensor or
microswitch.Whenyouremoveanychassiscomponent,thesensortriggersandsends
a high level signal to these leads to record a chassis intrusion event. The default setting
isshortCHASSIS#andGNDpinbyjumpercaptodisablethefunction.