I've seen a PowerPC 604e 150 MHz CPU for sale for a A4000, not for a A3000 unless a hack is made to the moatherboard. But I didn't know about any 150 Mhz PPC ?! :-o Is it reliable ?? I still have got an unused A4000 with 68060 hidden in my room, and it might be cool to upgrade it with a PPC board, not ?? Unless someone tells me that this specific board may have to many flaws ?!