Make sure that you buy a power supply that is optimized for your region. Power supplies for European markets use different voltage settings than the ones used in North American markets.

You can buy a grounding strap to help keep you grounded while working.

Not all power supplies have voltage switches, and those that do normally have the switch set to the standard of the region for which they were purchased.

Not all power supplies have voltage switches, and those that do normally have the switch set to the standard of the region for which they were purchased.

Not all power supplies have voltage switches, and those that do normally have the switch set to the standard of the region for which they were purchased.

Refer to your computer’s instruction manual for the proper placement of the power supply unit, or look for a rectangular cut-out on the back of the case. If you’re removing an old power supply, look for a power plug on the back of the case to find the power supply.

If you have an old power supply in your computer, remove it first.

Many CPU housings have shelves on which the power supply will rest.

Depending on your power supply and motherboard, you may not have a secondary power cable. The plug used to attach the power supply to the motherboard is usually a 20- or 24-pin connector.