If that psu is as weak as the earlier A1200 psu's, then I'm surprised it isn't failing already :hammer:
Mine failed with a 68030 accelerator and a hard drive ! It suffered from sudden crashes with no apparent reason - I put an oscilloscope on the power rails and saw it dip as the Miggy crashed ! A tower conversion and an AT psu sorted it out, and it's been rock solid for 10 years.