On Mon, 20 Mar 2006 16:54:02 -0600, Dan A Currie wrote: > Go to the SYSTEM PROFILER in your Mac under the APPLE to find out > about your Mac ... then try going here and enter the type of Mac you > have in the appropriate place. > http://www.macsales.com/ Also, if you want some step by step instructions on how to work inside your computer you can download a pdf version of the repair manual at: http://www.whoopis.com/computer_repair/#powermac You will need to know exactly which powermac you have first.