v Limit your movement. Movement can cause static electricity to build up aroundyou.v The use of a grounding system is recommended. For example, wear anelectrostatic-discharge wrist strap, if one is available. Always use anelectrostatic-discharge wrist strap or other grounding system when working insidethe server with the power on.v Handle the device carefully, holding it by its edges or its frame.v Do not touch solder joints, pins, or exposed circuitry.v Do not leave the device where others can handle and damage it.v While the device is still in its static-protective package, touch it to an unpaintedmetal surface on the outside of the server for at least 2 seconds. This drainsstatic electricity from the package and from your body.v Remove the device from its package and install it directly into the server withoutsetting down the device. If it is necessary to set down the device, put it back intoits static-protective package. Do not place the device on the server cover or on ametal surface.v Take additional care when handling devices during cold weather. Heating reducesindoor humidity and increases static electricity.Internal cable routing and connectorsThe following illustration shows the internal routing and connectors for the two SASsignal cables (in server models with eight SAS drive bays).Notes:1. To connect the SAS signal cables, make sure that you first connect the signalcable, and then the power cable and configuration cable.2. To disconnect the SAS signal cables, make sure that you first disconnect thepower cable, and then the signal cable and configuration cable.The following illustration shows the internal routing and connector for optionaloptical drive cable.Attention: To disconnect the optional optical drive cable, you must first press theconnector release tab, and then disconnect the cable from the connector on thesystem board. Do not disconnect the cable by using excessive force.Chapter 2. Installing optional devices 47