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PSU 115 vs 230 switch WHICH ONE?!

  • Power Supplies
  • Switch
  • Components
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Last response: in Components
August 18, 2012 6:38:02 PM

I have a Rosewill Lightning gaming power supply, specifically:

This thing doens't say which side is the 115 or 230 setting. The switch actually has 3 settings. Left, Center and Right. I don't know which position it should be in. Any advice?

What happens if I get this wrong?

More about : psu 115 230 switch

Best solution

a c 311 ) Power supply
August 18, 2012 6:45:19 PM

If you get it wrong the power supply explodes. That PSU also has active PFC so it shouldn't have a voltage switch, i believe the switch shown in that picture is for the fan color.

What country are you in?
August 18, 2012 6:47:14 PM

Oh *** you're right! I forgot it had that feature!

I feel so dumb now. Thanks!
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August 18, 2012 6:47:21 PM

Best answer selected by Wemperer.
a c 163 ) Power supply
August 18, 2012 6:49:22 PM

If you are in a 110-125V country, setting the wrong position may do:
- nothing
- PSU works but likely at reduced efficiency and reduced margins to cover brownouts
- PSU blows its fuse or possibly more

If you are in a 220-240V country, setting the wrong position will:
- almost certainly blow the fuse
- possibly destroy the PSU
- maybe damage computer components if the PSU rings its outputs faster than it can blow itself up

So the wrong position in a ~120V area is relatively safe while the wrong position in a ~240V area is almost guaranteed to blow something up.