CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs or thumb-screws that you must disengage before disconnecting the cable. When disconnecting cables, keep them evenly aligned to avoid bending any connector pins. When connecting cables, ensure that the connectors and ports are correctly oriented and aligned.

CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device.

CAUTION: Press and eject any installed card from the 8-in-1 Media Card Reader.

Recommended Tools

The procedures in this document may require the following tools:

•Phillips screwdriver

•Plastic scribe

•Small flat-blade screwdriver

10 Before You Begin

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Dell 5420, 7420 owner manual Recommended Tools
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