Install
Power Supply
Install the power supply to the case
Now, locate where the power supply is going to be installed, remember if you've already installed the drives, it may be a bit difficult to to put the power supply in, that also depends on which case are you using for your computer.
Install the power supply matching it to the case and inserting the screws.
It should look something like on the picture to the right, see how the power supply is screwed to the case firmly.
Cables, Cables, and More Cables...
Then comes the hardest part, those cables, which clutter your computer and make you wanna cut them, piece by piece. Those cables have a purpose, they provide power to your computer components.

If you have your motherboard installed then proceed and connect your cables, remember that here are different types of connectors:

Just match the power sockets to your motherboard, all of your devices should be connected to the power supply and that means:
- Drives
- Hard Disks
- Some Video Cards
All of the connectors on the power suplly unit (PSU), have the exact place on computer where they are pluging in. The main power plug is 20pin connector in 2 rows (pictured above), it cannot be inserted in any other way so you don't have to worry unless you force things out , and for all of the others connectors applies the same rule.

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