Dell Precision T7400 User's Guide - Page 146

NOTICE: To connect a network cable, first plug the cable into the network port or device and then plug it into the computer. 4 Connect your computer and devices to electrical outlets, and turn them on. 5 After you open and close the cover, the chassis intrusion detector, if enabled, causes the following message to appear on the screen at the next computer start-up: ALERT! Cover was previously removed. 6 Reset the chassis intrusion detector by changing Intrusion Alert to Enabled or Enabled-Silent. See "Resetting the Chassis Intrusion Detector" on page 62. 7 If a setup password has been assigned by someone else, contact your network administrator for information on resetting the chassis intrusion detector. I/O Panel CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer. 146 Adding and Replacing Parts