How to choose a Power supply (PSU)

In an ideal PC assemble, usually we put forward some of the hardware that we think is most important, like mainboard, processor, memory, VGA. Especially you who like brain-tweaking the computer to get the best PC games or even overclocking. While the Power Supply (PSU) is often ignored.

In fact, without the power supply is good, all powerful tools that we choose will not be able to work with the optimal.There are many types of PSU but not all good for use in a PC that has a high specs. Tips for choosing a fixed PSU specs are very high in need because without the PSU is good all the devices will not work optimally reliable.
Just to give an overview about the PSU.

1. WATTS
PSU using measures watts in power supply. Watt in the PSU is calculated by multiplying voltage by amperage. The higher the wattage PSU so power can be supplied higher.

2. Rails
Conductor size, power is in the form of volt. In klasifikasin be +3.3 V, + 5V, +12 V,-5V and-12V. As a benchmark simply note that (+) only because the rail (-) only for the use of PCs in the past that is for ISA slots, and Floppy drives. Calculating the power of each rail simply by mengalikanya with the ampere. Then add the third rail is to know the maximum capacity of the PSU.

3. Multiple Rails
Along with the development of processor technology and VGA +12 V rail increasingly require high power. This high power requirement will make the +12 V rails into heat and make the performance of the PSU becomes unstable, so to overcome this then divided into 2 rail, 3 rail even the newest four rails. That is to say that using a dual rail PSU will be more stable in the power supply because the heat can be suppressed. The result is wasted energy into heat is reduced.

4. Voltage Regulator
Often also referred to this is the change in output ripple voltage generated by the PSU. Changes in this voltage fruktuatif caused by conditions that do not konstants example from idle and then became a full load. The recommended safe standard is + / - 5% of railnya. The fewer the better the output ripple PSU.

Voltage regulators can be called as an essential component in maintaining the hardware in the computer hardware. For the flutuatif volt up and down in a short time causes the hardware components become damaged. Especially the most frequent subject is the hard drive.

5. Hold Up time
Backup power is available at PSU before running out of power. Under these conditions there is no power failure or power supply how much power is able to supply power PSU accommodated. The bigger its reserves mean more time in dealing with input condition die. PSU is good to have high Hold Up Time, which he uses to signify good component.

6. Over-Voltage Protection
PSU has an almost all these features. Its function is obvious that is to protect from power surges. So if there was a big auto power PSU will decide the current. With this feature the user can avoid the disaster of shorting or hit by lightning. So if there was a big hit that high are not the first PSU other components because the current is already on another cut klo PSU there is no feature of his spikes directly forwarded to all computer components.