THE VALUE OF the PSU

When we planned to upgrade the computer, often this component was most often set aside by us. PSU was often humiliated and got smallest attention. Quite a lot of we often thought bought the case at the same time bundle with PSU, in fact like yg we knew PSU bundle (most) was bad PSU, although having the producer that bundle the case with great PSU. The temptation to ignore power supply was temptation was most humane towards the systems builder with various reasons, the example “if using PSU from bundle with case, we would be able to use more money for better VGA or CPU that more fastest”. Very important if we could have the understanding yg true about power supply, so as we could place POWER supply in his position.

SPECIFICATION OF POWER SUPPLY

Every Time power supply had the label adhered in PSU body, the information is written in PSU usually consisted of the specification that was presented by the manufacturer
To understand the power of PSU (watt) we must look for a moment concerning the Tension (Volt) and the Flow (Ampere) 1. Voltage was the potential for the power around two points.
2. Ampere was the level of the electron current.
3. One watt was multiplication between the tension (V) and the flow (A)
Because of that although being easy his abbreviation as follow:
Watt = W
Voltage = V
Ampere = A

Rails
Rails was the system of the power delivery. Current PSU usually is divided into +3.3v, +5v, +12v, -5v and -12v. Although there is one that is negative, it was necessary we attention was enough that was just positive, (except for you were interested understand better about power supply)
Rails could determine as big output one power supply.
The example:
1st Rail =+3.3v rail30a = 100w
2nd Rail =+5v rail 30a = 150w
3rd Rail =+12v rail25a = 300w
Grand the total from PSU above was 550W. but wait a minute, the figure 550W often was diverted by the PSU manufacturer.

Multiple Rails
The Trend now, the Computer component more often used the power from rail 12V, because the most psu broke the +12v rails became two, three, four in to six rail.
Multiple rails made the computer more stable and cold because of supplies were stable.

STANDARD OF PSU

PSU that often circulated and used was ATX 20pin and 24 pin. ATX EPS12v was used to server, this standard was known with 24 connector pins and 8 pins +12v in addition. BTX the length from Balanced Technology Extended, more was aimed to anticipate hot so as the PSU orientation was supervised. Several producers PSU has claimed that their PSU were BTX ready.

POWER SUPPLY TERM

Holdup Time
Holdup time was the measurement so PSU still could give power when input electricity was suddenly interrupted. If electricity was interrupted and in again short time ounce, then PSU could compensation the loss of electricity supplies, felt like electricity not was cut off. It was increasingly old that Hold up time usually indicated the PSU quality, likewise indicated this PSU using the good component.

Voltage Regulation aka Ripple
The Burden to Power Supply often inconsistent (played game, idle, etc.). Together with the change that happened output tension also varied. The regulation/Ripple showed the measurement of how many changes that happened. Most of PSU modern had ripple 5% when the flat burden. Several PSU companies that were great claimed ripple 1% which Is very nice.

Over Voltage Protection
This function guarded moments that the voltage rise inappropriately. PSU could shutdown automatically for the safety hardware that was passed through by this tension.

Modular Power Supply
The PSU Breakthrough for them that liked modding and the neatness. But modular PSU had the weakness, increasingly many cables that could be removed, automatic made more connections and the number of blanks of the cable connection that had the potential for the obstacle, the obstacle was increasingly, many powers that were thrown away, modular psu was wasting energy. If really needed modular PSU please nuy it, but if indeed was bought by you, you know the weakness.
The Modular PSU

Negative Rails
What negative rails he function??? It was modern that the negative rail already unpopular compared with positive rails. The negative rails was used to:
1. Isa cards
2. Serial port or LAN
3. Old FDD (yup 5.25″ FDD) :D

PFC
What of PFC? PFC = Power Factor Correction. Power Factor was the measurement was as efficient in consuming the electricity power. PFC was judged from 0 to 1. 0 were most ineffective, 1 most effective, so if. 5 approximately moderate effective. 8 meaning that very good in efficiency.
There were 2 PFC kinds, passive and active. PFC passive using the capacitor to filterize the AC flow with the aim of guarding induction cargo. PFC Active using the electric series to match induction cargo. The wrong concept about PFC to be, PFC could unload the electricity bill. This was untrue except for your bill was based on how many of VA and PFC.

The Label PSU with Active PFC:

Peak Vs Continuous Power
Continous was the PSU capacity to give the power every time. Peak was the spurting of the power during the period of specific time, the example 30 seconds or 60 seconds. Using the PSU on the capacity CONTINOUS him in the period of a long time will result in damage. Also often the person mentioned Continous was known as PURE PSU.

Adjustable Pots
Often take the form of potensio metre that enabled you adjust the tension each rail.
The example if the tension +12v descended to 11.4v and result could not stable then we could adapt. Not all of PSU had fitur this, adjustable pots was the features for hardware freak, if you still noobie better consultations previously, through to damage that was not expected to be able to be avoided.
PSU with Adjustable Potensio Metre:

GUIDE TO BUYING PSU

Please use PSU calculator along with, if you were in planned how many power requirement for your computer:
OuterExtreme Power Supply Calculator

source from khurios2000