So my logicboard from jbarley arrived today. I installed it and things seem fine however i ran into some hiccups fixed them but still have a question All I did: Installed 2GB RAM Installed Battery Installed Board Installed 133MHz 1GHz CPU (From old board) Installed Second Drive Cage and moved the main drives back to the ATA100 bus. Booted the system to get the crash window. Tried to book Live CD Lubuntu - nothing happened stopped at black screen Tried to boot Leopard on the main HDD (Loaded and froze on the spinning Apple) Tried to boot the Leopard USB Installer - Just sat at the with the spinner. Held down ALT key for boot menu selected the main HDD and held the keys down to boot safe mode. successfully booted into same mode and ran a disk verify on main HDD - it passed. Rebooted now the system boots like normal Now the question: According to the Xbench results this was the motherboard from a DP 1.25GHz MDD. According to Intell, using my 133MHz CPU in a 167MHz board would clock down my CPU. However, it didn't "About This Mac" still shows the CPU as 1GHz. System Profiler shows the FSB being 133MHz. This can only mean 1 of 2 things: jbarley was wrong (which happens) and this was not a 167FSB board OR Intell was wrong and the system Clocked down the FSB to accomidate the slower FSB CPU. any thoughts?