Hello there, i have some low end ATX smps boards lying around so i thought that i could use them in some other way so i decided to set it up as a power supply for my 2 linksys routers and bandluxe 3G router all running at the same time, it worked for abt a year then one evening it suddenly went dead, all preliminary checks were ok, fuse not blown, rec diodes ok, primary caps ok, switching transistors ok, sec rec diodes ok and sec filter caps ok, i noticed that my 5vsb voltage was too low, abt 1.4 volts only, checked the schematic and the 5vsb ckt has 2 transistors, one for the 5 volts and one...