Need some help here.

Traded for a MaxNC 10 with probotix steppers/controllers and a controller PC running LinuxCNC. The setup was working fine and completely ready to go when I got it. After a move and setup the PC is being flaky. I know the PSU is dying (.5v short on the 12v rail) but it has me a little worried with the age of the machine.

If I have to build a new controller PC what files do I need to move over so that all the machine settings replicate? I am familiar with linux and PCs, however not with EMC.

Thanks!