Hi Gary, I also have a dual 1.7GHz 7447A PowerForce CPU from PowerLogix with VRM Bypass technology. Let's hope we get lucky running the beast... LM >>>gheartsfield at mac.com 10/23/07 3:19 pm >>> Well I do not think it will load on a stock Cube. 867- G4 minimum for Leopard. Time to upgrade the brain. I have a 1.7 powerlogix that I hope will be fine. Gary Heartsfield -------------- next part -------------- An HTML attachment was scrubbed... URL: http://listserver.themacintoshguy.com/pipermail/cube/attachments/20071023/c9507096/attachment.html