Power supply's working principle. AT and ATX power supply and it has the same behavior is receiving voltage from 220-240 volts through the control switch for the motherboard, and AT sending voltage part back to the AC output to feed the monitor and will send another 220 volt voltage into one.To the unit that serves to convert 220 volt alternating voltage, 300 v DC power is via the transformer fire. This system is called (Switching power supply) and through the transformer converts high light, low light, without functional breast nachut the equipment, voltage divider, is a 5 and 12, before sending it to the power cord, and the cost of Switching power supply's talent, it is Switching to a cut-out device is immediately fed the fire load, either damaged or shot themselves.Thermal As we have already mentioned that the power supply has an important role in the PC cooling process by certain of its functions is brings hot air out of the case. The flow of air inside the PC to start from cold air to flow through to the front of the case. Then the air is heated up by the device, such as a CPU. Video card chips, hard disk, etc., because hot air is paset density less than cool air, it floats up to the top by natural causes floating hot air to be planted in the top part of the case. The cooling of the power supply fan is working, blower. Pull heat out of this area and blowing away from the PC. In one of the power supplies are expensive, blower, two or three, but now it has been changed by a change larger fans to reduce noise in the workplace. in most of the case, and there will be enough space for the installation of an additional fan at the rear. However, some computer case did not allow us to install the power supply at the top of the case, but it will give you power supply is at the bottom of the case or if it is the case that placed the horizontal power supply, it will be the one. The motherboard and the devices would be on the other side of one of the power supplies also have helped in cooling off the little kheso is a good example, because it brings the heat from outside to the case itself. Do not leave the heat accumulated inside the machine is the same as for other devices.
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