Dell Precision 330 Service Manual - Page 130
Desktop Chassis, Removing the Chassis Intrusion Switch (Desktop Chassis
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www.dell.com | support.dell.com Desktop Chassis • Removing the chassis intrusion switch • Replacing the chassis intrusion switch Removing the Chassis Intrusion Switch (Desktop Chassis) CAUTION: Before you perform this procedure, see "Precautionary Measures." NOTICE: Before disconnecting a peripheral from the system or removing a component from the system board, verify that the standby power indicator on the system board has turned off. To locate this indicator, see "System Board Components" or "Interior Service Label." 1 Turn off the computer and peripherals, disconnect them from their electrical outlets, wait at least 5 seconds, and then remove the computer cover. 2 Remove the hard-drive bracket. 3 Remove all expansion cards. 4 Remove the expansion-card guide. 5 Disconnect the chassis intrusion switch cable from the control-panel connector (ALERT). To locate this connector, see "Control Panel Components." 6 Feed the chassis intrusion switch cable through the routing hole in the front wall of the chassis (see the following figure). 7 From inside the chassis, slide the chassis intrusion switch toward the left side wall of the chassis to release it from the chassis. 8 Lift the chassis intrusion switch and switch cable away from the chassis. 130 Chassi s Int r usi o n Sw itch