Best psu need to run smoothly pc?


Jan 6, 2010
you can c my config below but all im doing is to add graphic card 5770 hd

Do i need to replace if i do overclocking my cpu and gpu both.....

if yes then how much wattage is sufficeint for the h/w driving ?

which company will be better? currently i use 450 watt i ball
Well your power supply is some no name that i never heard of it will probably be enough to run your system but if you want to overclock you should have a quality PSU. You should look at either Antec, Corsair, or Silverstone.




Anyone of those will be a great choice.

And BTW nice pic :)

Yea like I said it will power it but IDK beyond that you start asking too much of a cheap power supply and you are asking for trouble.

Just watch this video too see what happens when you demand too much from a cheap power supply.
The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the +12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 5XXX series cards which use less power due to their energy efficiency.

A high quality 500 to 550 watt psu will have a +12 volt rail rated at 40 amps. A high quality 700 to 750 watt psu will have a +12 volt rail rated at 60 amps.

In addition the power supply should be at least 80+ Bronze certified for energy efficiency. There are some models available which have achieved 80+ Silver and 80+ Gold Certifications.

Before purchasing a new psu you will need to decide whether you will eventually have a pc with one or two video cards.

Corsair and Seasonic are two brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Some of the newer models come with a 7 year warranty. Lately we've been seeing a few other brands offering some high quality units. One example would be the Antec Earthwatts and Antec TruePower New models which are a major improvement over Antec’s older psu’s like the Basiq models.