Maintenance and Service Guide

Cable management
Proper routing of the internal cables is critical to the operation of the computer. Follow good cable
management practices when removing and installing components.
● Handle cables with care to avoid damage.
● Apply only the tension required to seat or unseat cables during insertion or removal from the connector.
● When possible, handle cables by the connector or pull-strap.
● Route cables in such a way that they cannot be caught or snagged by parts being removed or replaced.
● Keep cables away from direct contact with major heat sources, such as the heat sink. (Some air ow
guides have a cable guide that lets you route cables safely around the heat sink.)
● Do not jam cables on top of daughterboards or memory modules (DIMMs). Circuit cards and DIMMs are
not designed to take excessive pressure.
● Keep cables clear of any movable or rotating parts (such as a fan) to prevent them from being cut or
crimped when the component is lowered into its normal position.
● In all cases, avoid bending or twisting the cables. Do not bend any cable sharply. A sharp bend can break
the internal wires.
● Do not rely on components like the keyboard or service door to push cables down internally. Always
position the cables to lay properly by themselves or in the cable guides and chassis areas designed for
cable routing.
CAUTION: Always release connector latch before removing the cable. Otherwise, pulling the cable could
damage the cable pins and result in a failed device.
Additional information 147