It was originally a Rev 1 G3/350, then the motherboard was replaced with a Rev 2 G3/400. After that the processor was upgraded with a Sonnet Crescendo G4/400.Is the Blue and White PowerMac G4 a previously unknown prototype hidden in Cupertino's labs?
Nothing strange has been done software-wise. Normally the only thing done with it is iTunes, occasional gaming and web development.