itll work until it craps out totally. 

i would still find the time to recap and fix bad solder joints before things take a turn for the worse. Fix it while you can!

Also this may sound stupid, but make sure something isnt grounding out to the metal chassis, such as the fan for example. the 12V supply tab may be grounding out for some strange reason. 

Including your mod. Make sure the solder isnt blobbed so large its making contact with the metal undercarriage.