I’m going to be moving to Japan from Germany soon. The PC I use most is a desktop; its PSU is specified at 220–240 V input as is the European standard. Japan uses 100 V mains power as we all know.
I assume that the lower voltage will mean that I will not be able to use my PC’s current PSU in Japan out of the box. What options do I have to make it work?
Note that I heavily use the PC and sometimes leave it churning through data overnight. Thus, any suggestion should be applicable for excessive usage, too.