I received my PC with a sticker that says, "Keep it in the 115V gear all the time. Misuse will lead to short circuit of power supply, or even fire." However, I've got a bit of a dilemma: there's no 115V option—only 110V or 120V. Plus, the switch looks like it might be upside down. I'm not from Australia, so I'm a bit confused about how it should be set. Can anyone help clarify this? I've attached an image of the switch for reference.
5 Answers
That sticker looks like it was written by someone who isn’t too familiar with English or electrical standards! Just be sure to match your setup with your local voltage range to avoid any issues.
You should use the 110V setting if you're in the US, where the typical voltage is about 110-120V. The other switch position is probably for 220V, which is used in Europe, and using that at a lower voltage could damage your power supply.
I wish I could help more, but I can’t access the image link. Just wanted to say hi from the UK!
If you can, post a clearer picture of the switch! Voltage tolerance in the US is generally ±5% to ±10%, so you want a setting that can reliably handle between 108V and 132V. That should keep everything running smoothly.
Just to make sure, the 220V option is definitely meant for European systems. If your area runs on 110V, stick with the 110V or 120V setting. Always better to be safe with power supply settings.

Yeah, I used to see that happen in school! Changing the switch to 220V when it wasn’t supposed to would fry the power supply pretty quickly.