before you begin installing options in your computer, read the following information:

    1 review the safety information beginning on page vii, “installation guidelines”, and “handling static-sensitive devices” on page 28. these guidelines will help you work safely with your computer and options.

    2 make sure that you have an adequate number of properly grounded electrical outlets for your computer, monitor, and other devices that you will connect to the computer.

    3 back up all important data before you make changes to disk drives.

    4 have a small flat-blade screwdriver available.

    5 when you need to access the inside of the computer to install options, you might find it easier to lay the computer on its side. before laying the computer on its side, rotate the two front stabilizing feet a quarter turn inward toward the computer, so that they do not break. before returning the computer to an upright position, rotate the front stabilizing feet a quarter turn outward from the computer. see “moving the stabilizing feet” on page 30 for more information.

    6 the blue color on components and labels identifies touch points where you can grip a component, move a latch, and so on.

    7 for a list of supported options for your computer, go to http://www.ibm.com/pc/ on the world wide web; then, select your country and navigate to the list of options for your computer.