Hello, I have a problem. I've got a B&W G3 and I've heard it's possible to swap the CPU with PM G4 Yikes!. So, few weeks later I've purchased the latter one, swapped CPUs, powered my B&W on and... does't work, I get 5 beeps and that's all. I've made some research and as far as I know I need to patch the Boot ROM / Firmware on my B&W to make the G4 CPU work. But... Google knows nothing. B&W's Firmware version is 1.1 and I've got no idea how to patch/downgrade it. Have any of you upgraded your B&W with G4 Yikes! CPU successfully? Could you tell me what to do, please?