before you begin to install adapters in your computer, read the following information:

    1 read the handling guidelines in "handling static-sensitive devices" on page 31,and read the safety statements in "safety information" on page vii. these guidelines will help you work safely with your computer and options.

    2 back up all important data before you install or remove adapters.

    3 make sure that you have an adequate number of properly grounded electrical outlets for your computer,monitor,and other peripheral devices.

    4 before accessing the inside of the computer, rotate the two front stabilizing feet a quarter turn in towards the computer, so they do not break. before placing the computer in an upright position, rotate the two front feet a quarter turn outward from the computer.see "moving the stabilizing feet" on page 9.

    5 have a small, flat-blade screwdriver available.

    6 for a list of supported options for your computer, refer to http://www.ibm.com/pc/support on the world wide web.