How do i change the voltage if my computers power supply?

Apparently there was supposed to be a little switch on the back of it, but i've just taken it apart now and there isn't one. I've also checked in the bios and theres nothing about it there either,How do i change the voltage if my computers power supply?
Many power supplies do NOT have the switch. Also almost NO desktops or towers have multi-voltage supplies. You will need to fit a new one. Laptops are the only machines which have multi-voltage supplies. It is dangerous to take advice from someone who say %26quot;it is probably ....%26quot; to do this will PROBABLY destroy your machine.How do i change the voltage if my computers power supply?
With the difference in voltage of the switch this would either stop the machine if set too low, or blown it up if set too high. Do NOT paly with things you do not understand.

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How do i change the voltage if my computers power supply?
if there isnt a switch it most likely takes both euro and american voltages (110-240)



my old one had a switch but my new one doesnt, go figure :)How do i change the voltage if my computers power supply?
The switch on the back is for the AC input voltage, and does not affect the resulting DC current which the power supply produces. If you were to switch it to run on 230v in the united states, your computer will not boot, and could possibly damage hardware.



115v for USA, 230v for UK/Europe.



If it does not have a switch, you might have to read the label on the power supply itself. While some power supplies can automatically switch voltage, it would be safe to check.How do i change the voltage if my computers power supply?
as far as i know there is no more of those old power supplies which had 110 / 240 watt switches . (us - europe etc).



They should work on both without problems. Try reading the sticker on your power supply if it supports both. if it doesn't go to an electricity shop for a converter.How do i change the voltage if my computers power supply?
My guess is when you plug it in, it automatically senses the input voltage, and automatically adjusts.



Or, it is only for use in the US, and other countries that use 120V 60Hz.How do i change the voltage if my computers power supply?
If you do not have a switch then you can not change the voltage, it is as simple as that, you could check the power input label to see if it is a 110-240 volt 50hz-60hz in which case it would work any where, most lap top chargers have this facility.

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