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Step 2Preparing the Power Supply
It's best to do this first, as the PSU will help us later. The simpler the power supply the better as more recent ones are harder to get working out of a system. The type which has a 20 way large connector is ideal.
Unplug all the power connections inside the computer and remove the power supply unit. You will usually find three screws on the back panel of the PC holding it. Once out, blow hard into the ventilation holes to remove the dust of ages.
Now you're into the PC, you can take out the CDROM drive (usually a couple of screws into the side) and a blanking plate from the back panel.
If the large connector from the PSU has a green wire in the position shown in the photo, connect a wire link to it, and to one of the black wires next to it. This is the lead which would go to the power switch and needs to be grounded to turn the supply on.
Unplug all the power connections inside the computer and remove the power supply unit. You will usually find three screws on the back panel of the PC holding it. Once out, blow hard into the ventilation holes to remove the dust of ages.
Now you're into the PC, you can take out the CDROM drive (usually a couple of screws into the side) and a blanking plate from the back panel.
If the large connector from the PSU has a green wire in the position shown in the photo, connect a wire link to it, and to one of the black wires next to it. This is the lead which would go to the power switch and needs to be grounded to turn the supply on.
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