Thursday, July 14, 2011

Power supply discussion


In this first segment, I will be covering on power supplies and the quality of power supplies from different brands.
1) Why you should buy a quality power supply?
The reason is simple. Quality power supplies are not only able to deliver their rated power, but they also deliver it in a cleaner and more stable manner.
 This means that you will have to use less voltage to your CPU when overclocking, it also helps to prolong the life of your hardware when they are provided with clean, unfluctuating power.
Also, the power supply lasts longer.
2) What makes a good power supply?
There are many things a good power supply has.
Look for operational features like OCP (Overcurrent Protection), OVP/UVP (Overvoltage/Undervoltage protection), SCP (Short circuit Protection), PFC (Power factor correction) and such.
If you open up a quality power supply, chances are you'll find the following traits.
a) A fan with ball bearings from a reputable manufacturer. (AVC, Nidec, Sanyo, ADDA, Globe, Delta, etc.)
b) Quality Japanese capacitors that are rated at the higher maximum operating temperature of 105 degrees Celsius. (Nichihon, Nippon Chemicon, Hitachi, Rubycon)
c) Active PFC. This is evident when you see the absence of a voltage selector switch at the rear of the unit.
d) Sleeved cables. Now, it doesn't mean all PSU's with sleeved cables are good, but it usually means that they have at least added some quality to the cabling. Thick wires are also a good indicator.