You need to get the right watts needed by your computer and also don't forget the cooling fan. Make sure that you inspect the device for any physical damage and you got it in a good deal. For safety, use an anti-static hand cover and your computer is not connected to the electricity including the devices attached to it. Its time to open the chase and remember the wires and set up better copy the it on a piece of paper. Carefully remove the screw that connects to the chase; holding the old power supply, then from the motherboard, drive and fan. Connect the new power supply; screw in to the motherboard, drive and fan; then to the chase. Double check on the diagram copied and any missing screw, then check if your computer works again. You can check the site I posted in the related links if you need to get a new power supply or fan.
Oh no i suggest you buy a new power supply before it complety stuffs your pc. you may not have enough power in your power supply to run it.
A PC power supply cable can be purchased online from Amazon where there are many such items available to buy. They can also be found used or new on eBay.
AT Power Supply - still in use in older PCs.ATX Power Supply - commonly in use today.ATX-2 Power Supply - recently new standard.
The PC power supply box's function is to supply the computer with power. Without the PC power supply box, the computer would not be able to turn on and off.
For a god quality PC power supply; 120mV on the 12V rail 50mV on the 5V and 3.3V rails
plug it in
+10
Unplug it from the power supply.
Keep it plugged in.
Rectifer
change the power supply then restart your PC......
A PC Main Supply is what gives the computer power to operate, in desktop computers they have to constantly be connected to some type of power outlet. Diagram. Plug socket > Cable > PSU (power supply unit) > Motherboard > power to all components in the computer.