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I brought a new computer a yr ago. Whenever, i've try to push the power button it won't turn on. A lot of people say it can be the power supply but i don't want to get a power supply, when install it won't work. Is there a way i can check what's wrong with it.

so you get no lights or fans or beeps and nothing on the screen?

If it's the power button on the front of the computer, you will better taking it into a computer rpair shop and let them fix it...

this is safe and not hard to do if it is an atx power supply all pc's built in the last few years are so yours will be you can check it it is the button in the pc you just remove the lead from the switch to the mainboard there will be 2 pins under the power plug to the mainboard cross them with a screw driver be carefull not to break anything if the power turns on it is your switch if you have no power it will be the power supply. Before you do that make sure it hasn't got and on/off switch on the back of the case as well as the button on the front.

Taking your pc to a shop will cost you $$$ This is a safe way to check your power supply you will need to unplug all leads to the mainboard and hard drives and cd/dvd roms. I can tell you this is safe I have worked in pc shops for over 10 years!!! you just need to be carefull.

To turn on an ATX power supply that isn't connected to a motherboard use a wire or paper clip to short the green wire (PS_ON) to any one of the black wires (COM).



Also, be aware that some of the older Dells (older than Dimension 4300) did use proprietary powersupplies that are not wired the same as the ATX standard, even though they will look physically the same.

the power is not on

The 2 suggestions will check if it's your power supply or just the case switch. If your not confident or havn't been inside a pc before it might be best to take it to a repair shop. But both suggestion are easy. I ran a co-worker through it yesterday it end up being his power supply ( which it is in most cases) I directed him on how to fit it he followed the instructions that pc is now up and going. He had never been inside a pc before he didn't realize it was so easy!