US computer power compatibility

Anybody got a fix or good idea for connecting my PSU cables to the Japanese power outlets? I’m not sure about the long term effects of using a standard 3 prong to 2 prong converter.
PSU is a Corsair RM850X.

6 comments
  1. I got an adaptor with a ground wire and just covered the ground wire. My rig is old and if it explodes, it had a good life.

  2. Your PSU will be fine.

    The converter will be fine too. But if you really want to, you can just buy a new power cable 🙂

  3. Specs for that model are 100-220v and 47-63Hz. Totally within parameters for Japan. Don’t worry about it.

  4. Mechanically, it’s a bit more weight on the plug, that is pretty much irrelevant.

    Electrically, the ground pin is connected to the case and to the “ground” rail on the low-voltage side (which is electrically isolated from both hot and neutral on the supply).

    During normal operation, that isn’t a problem. However, the metal case being connected to ground is a safety feature: if for some reason there is ever a short between the hot wire and the case, this will make your GFCI and/or breaker trip, so as long as you have power in the room, you can be sure that it is safe to touch the case.

    So if you don’t connect the ground, you disable a safety feature.

  5. I believe that the PSU cables in Japan use the same connector on the PSU side. They just have the 2-prong Japanese plug on the other end.

    You can either use a cheap travel adapter, or go to Hard Off and buy a second-hand Japanese PSU cable for like 200 yen.

    If you really want to ground your PC case, you can get an electrician to install an outlet with a ground connection, but that’s not really done in Japan.

  6. Every US-manufactured computer I’ve owned here, I just pull out the third prong. …Your mileage may vary, but in 20 years of using US computers I’ve never had a problem.

Leave a Reply
You May Also Like