Parts for Apple iMac Intel, White 20" family
Below are listed all the ranges within the 20" white Intel iMac family. It originally used the Core Duo version of the Intel chip before moving over to the Core 2 Duo.
If you are unsure which range you have, enter your serial number in the "Identify My Mac" box to the left. Click the "?" help link if you don't know where to find your serial number.