How to tell if the power supply on my computer?
-Unplug all external components from the computer. ie: keyboard, mouse, monitor, etc. -Plug computer tower into another outlet in the house that you know works. -Make sure the 110/220 switch at the back is set to 110v if you’re in North America. It’s unlikely that it’s switched, but it’s possible. -If the system does come back on, it may be the outset or surge protector/UPS that you’re using. Add external components one at a time to see if you’re over-using the power supply. A basic 330w power supply can’t handle high end video cards and tons of extra components. -If the system doesn’t come on, check to see if any of the lights come on; or any of the fans. Usually when the fan doesn’t come on, the system doesn’t boot and nothing else is plugged into the computer; the power supply is toast and it’s time for a new one. New power supplies aren’t that hard to install, and they’re fairly cheap unless you get some monster 1000w unit. 400-650w is plenty good for most non-hardcore-gamer system
