You need to make sure you know why the 5V power supply failed before installing new RIC1 or RIC2 boards. With all the bad RIC1 or RIC2 boards removed, you should be able to install and initialize the new boards one at a time. Once installed, the function of each individual board should work, even if the other RIC1/RIC2 boards are removed. So if you have fixed the power supply and installed all but one of the boards, your press should work, minus the function of the one missing board. For example, you installed and initialized all of the boards but the RIC1 for cocking, you may get an error but everything but cocking should work.