The Japanese magazine MacFan reports that the Intel Core Duo iMac’s CPU is socketed. O’Grady’s PowerPage writes: “This means that it isn’t soldered to the logic board like most Macintosh CPUs have been for years and can be upgraded. In an article in the Japanese magazine MacFan a reader claims to have upgraded the processor in a 17-inch Intel iMac from 1.83GHz to 2.0GHz without issue.”