For additional information about tools for updating, managing, and deployingfirmware, see the System x and BladeCenter Tools Center athttp://publib.boulder.ibm.com/infocenter/toolsctr/v1r0/index.jsp.v Before you install optional hardware, 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,indicating that an operating system was not found but the server is otherwiseworking correctly. If the server is not working correctly, see Chapter 3,“Diagnostics,” on page 23 for diagnostic information.v Observe good housekeeping in the area where you are working. Place removedcovers and other parts in a safe place.v If you must start the server while the cover is removed, make sure that no one isnear the server and that no tools or other objects have been left inside theserver.v Do not attempt to lift an object that you think is too heavy for you. If you have tolift a heavy object, observe the following precautions:– Make sure that you can stand safely without slipping.– Distribute the weight of the object equally between your feet.– Use a slow lifting force. Never move suddenly or twist when you lift a heavyobject.– To avoid straining the muscles in your back, lift by standing or by pushing upwith your leg muscles.v Make sure that you have an adequate number of properly grounded electricaloutlets for the server, monitor, and other devices.v Back up all important data before you make changes to disk drives.v Have a small flat-blade screwdriver available.v To view the error LEDs on the system board and internal components, leave theserver connected to power.v You do not have to turn off the server to install or replace redundant hot-swap acpower supplies or hot-plug Universal Serial Bus (USB) devices. However, youmust turn off the server before you perform any steps that involve removing orinstalling adapter cables or non-hot-swap optional devices or components.v Blue on a component indicates touch points, where you can grip the componentto remove it from or install it in the server, open or close a latch, and so on. Italso indicates that non-hot-swap component that you need to turn off the serverbefore performing any action on it.v Orange on a component or an orange label on or near a component indicatesthat the component can be hot-swapped, which means that if the server andoperating system support hot-swap capability, you can remove or install thecomponent while the server is running. (Orange can also indicate touch points onhot-swap components.) See the instructions for removing or installing a specifichot-swap component for any additional procedures that you might have toperform before you remove or install the component.v When you are finished working on the server, reinstall all safety shields, guards,labels, and ground wires.v For a list of supported optional-devices for the server, see http://www.ibm.com/servers/eserver/serverproven/compat/us/.System reliability guidelinesTo help ensure proper cooling and system reliability, make sure that:134 IBM System x3630 M3 Type 7377: Problem Determination and Service Guide