Handling static-sensitive devicesAttention: Static electricity can damage the server and other electronic devices. Toavoid damage, keep static-sensitive devices in their static-protective packages untilyou are ready to install them.To reduce the possibility of damage from electrostatic discharge, observe thefollowing precautions:v Limit your movement. Movement can cause static electricity to build up aroundyou.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 serverwithout setting down the device. If it is necessary to set down the device, put itback into its static-protective package. Do not place the device on the servercover or on a metal surface.v Take additional care when handling devices during cold weather. Heatingreduces indoor humidity and increases static electricity.Removing the server top coverAttention: If you release the cover latch and remove the cover while the server isrunning, the server will lose power and turn off automatically. After you reinstallthe cover, you can turn on the server again.Before you install optional hardware devices, make sure that the server is workingcorrectly. Start the server, and make sure that the operating system starts, if anoperating system is installed, or that a 19990305 error code is displayed, indicatingthat an operating system was not found but the server is otherwise workingcorrectly. If the server is not working correctly, see the Problem Determination andService Guide.To remove the server top cover, complete the following steps:1. Read the safety information that begins on page “Safety” on page v and“Installation guidelines” on page 44.2. Turn off the server and all attached peripheral devices. Disconnect all powercords; then, disconnect all external cables from the server.3. If the server has been installed in a rack, slide the server out from the rackenclosure.4. Press in on the blue tab on the cover-release latch and lift the cover-releaselatch up (the cover slides to the rear). Lift the cover off the server and set itaside.46 System x3690 X5 Types 7147, 7148, 7149, and 7192: Installation and User's Guide
