Some DIYers use computer power supplies in conjunction with other devices, such as low-power power tools. In order for such a block to work "on weight" and at the same time not deteriorate, it should be turned on according to certain rules.
Instructions
Step 1
Regardless of which power supply is used, before turning on, load it along the +5 V circuit with a current of at least 1 A. An old (not halogen!) Lamp from a car headlight is well suited for this. It has a spherical shape. Connect both of its threads in parallel and connect between the black and yellow wires. It is designed for a voltage of 12 V, and therefore from 5 V it will work in a light mode. However, do not allow her cylinder to come into contact with any flammable materials.
Step 2
Use the included switch to start the AT power supply. It is already connected with a long four-wire cord. If you accidentally unplug this cord, plug it in according to the illustration on the sticker located on the unit. Remember that incorrect connection will lead to a short circuit in the network! Carry out the connection itself, having previously disconnected the plug from the outlet. Observe the insulation condition of this switch!
Step 3
An ATX power supply will turn on only when two conditions are simultaneously combined: the switch on the case is on and there is a connection between the black and green wires. In order not to put an additional switch, connect the black and green wires to each other, and turn the unit on and off with its own switch. Install an additional switch that closes the black wire to the green one only if it is inconvenient to use the built-in power supply switch for some reason, for example, it is located in a hard-to-reach place.
Step 4
After turning on the power supply, using a voltmeter, make sure that all voltages at its outputs correspond to the passport ones.
Step 5
When using the power supply, do not short-circuit the output to +3, 3 V, as it is not protected in any way. Ensure good cooling, especially when the load is close to full. Never overload it on any of the current outputs, but on all outputs in total - in terms of power. If the fan is out of order, or one of the voltages has increased, stop using the unit immediately. Contact a qualified technician to repair the unit.
