Advice 1: How to remove power supply

When there is a need to replace components in the computer, of course, you can contact the experts. But, first, they do not work for free, and secondly, they are not always available at hand. The technical complexity of replacing computer parts is not. All you need is a screwdriver and accuracy.
How to remove power supply
You will need
  • computer, power supply, small Phillips screwdriver, minimal skills in handling computer
Instruction
1
All the described operations should be performed with the power off of the computer. Disconnect power from the system unit.
2
Open the side cover housing with side access to connectors on the motherboard. The unit of power most often located above the Board, but there are other options. Find it.
3
From unit supply to components inside your computer are the cables, disconnect them. Carefully remove the cables of the power supply of the hard drives and optical drives. If the cable power is connected to the graphics card, also disconnect it, squeeze the latch-lock.
4
Remove the primary and secondary cables to the power sockets of the motherboard. They are also equipped with latches that must be folded. Pull the cables carefully, you can gently sway them in the nest, but do not exert too much effort. Check that all the wires inside the computer coming from the unit power supplyhas been disconnected.
5
Remove the four screws that block the power supply bolted to the hull. They are located on the rear panel. While holding the second hand unit is power, so he fell inside the case for something important.
6
Gently, slowly then pull the power supply out of the chassis. You might have to remove the optical drive or the CPU, but in most modern cases this is not necessary.

Advice 2: How to start the PSU without a PC

Sometimes you need to run the unit power supply (PSU) without attaching it to your computer. For example, you want to check its performance or noise level, before deciding to install the device into the computer, or to seek a more quiet model.
How to start the PSU without a PC
You will need
  • — power supply standard ATX.
Instruction
1
Almost all modern BP is the unitand standard ATX. Next, you will learn the procedure for the inclusion of such unitand food. Check whether your PSU standard ATX. To see the relevant information on the device.
2
The procedure of starting the unitand power supply without a computer requires compliance with certain safety regulations. Before the procedure, block food, of course, must be disconnected from the network. You'll need a small wire on both edges which you should remove a bit of insulation (several millimeters is enough).
3
Insert the power cable connect power to unit power, but to the network it does not connect. Then connect one end of the wire into connector PS-ON. Usually by this connector fits the green wire, but cheap Chinese unitAh supply wire color may be different. The second end of the wire connect to one of the GND (COM) ports (they are black wires).
4
Then insert the wire power in the electrical network. The unit power will work. However, the device is better not to use this mode for a long period of time due to the fact that it works without load.
5
But if you want to check the noise characteristics of the unitand power supply, it may need time. In this case connect to PSU several devices, such as optical drive or hard disk. In this case, the unit power will work with the load, respectively, it can be used longer. Besides, this way you reduce the risk of failure of the device to a minimum.
Useful advice
If the power supply does not start, check to see if it simply turned off. On the device there should be a button on/off (not present on all models).
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