Powermac G4 programming mode

[calb818]

I have an old Powermac G4, I have upgraded the RAM, and I now have a sonnet cpu upgrade to 1.4ghz. My problem is getting into programming mode to enable me to update the rom with the required firmware for the faster cpu. I am using a normal usb pc keyboard which has no power key button that is required to be pressed at boot up to enter programming mode so any help would be much appreciated.

 

[chrismacguy]

Even the Apple Keyboards that shipped with the PowerMac G4 didnt have the PowerButton (They did for the very very first G4s, but mid-way through that models run they switched to the Apple Pro Keyboard which lost the power button) - You want to hold down the Power Button on the front of the machine instead.

 

[calb818]

Even the Apple Keyboards that shipped with the PowerMac G4 didnt have the PowerButton (They did for the very very first G4s, but mid-way through that models run they switched to the Apple Pro Keyboard which lost the power button) - You want to hold down the Power Button on the front of the machine instead.

Many thanks for that, I have found the button I needed, it is the small button on the right below the power button, keep it pushed in when powering up until the machine gives a long beep and hey presto, it has gone into programming mode and does it all automatically.
Many thanks