The use of computer cases with power supply in them is to be able to charge a person's laptop, netbook, iPad, or other electronic device while it is in the case still.
In order to supply power supply to your computer you would need an outlet plug near your computer. Then you can plug your computer into that and necessarily, use an extension.
When your computer will not power on. When the cooling fan of the power supply has failed. When the amount of hardware in use in your case exceeds the power capability of your power supply.
Use a power supply tester. You can get them on ebay for under $5.
Case: minitowers:compact cases,low-profile cases or slimline cases. Power supply: ATX power supply
The power supply makes the computer run, without any type of power supply it would be impossible to run a computer. The mains power supply for a laptop and the power supply unit of a desk top, both convert the high AC voltage from the mains power and convert it to low voltage DC, for the electronics of a computer to use.
The Power Supply. It is what you plug the power cord into.
The Power Supply. It is what you plug the power cord into.
UPS = Uninterruptible Power Supply
power supply
No FireWire does not need a separate power supply to operate. FireWire is used to connect peripheral devices to a computer.
The power supply changes the 120v ac 60 hz (in the us and canada) to dc 12v, dc 5v, and dc 3.3 v that the computer components can use. The power supply is rated in power supplied as watts of power.
A power supply that is designed to be outside the case of the computer. Most laptop computers use an external power supply rather than an internal one to reduce size and weight while the laptop runs on battery power.