From August 31, 2004 when the iMac G5 was first introduced, many assumed that the CPU was underclocked to prevent the mid-range iMac from competing too much with the G5 PowerMacs. At that time, Apple posted an uncompressed image of the iMac's innards posted on Apple's PR page. There were four resistors clearly marked as CPU CLK and NB CLK which quite possibly control the clock multiplier and FSB speed. There was a lot of speculation for a few weeks but I haven't heard anything else about this since then. I am curious to see if these jumpers in fact control the clock multiplier and FSB. On my 1.6GHz iMac G5, both CPU CLK locations are occupied while the two NB CLK pads are unoccupied. I would appreciate it if someone with a 1.8GHz iMac G5 would be kind enough to post what the configuration is on their machine. As I said above, they are clearly labeled and are located just to the left of the heatsink and just right of the center of the board. So again, if one of you iMac G5 owners with a 1.8GHz CPU would be so kind as to post the configuration of said jumpers, I would appreciate it. Hopefully they will be different thus lending credence to this speculation. Thanks in advance.