Originally posted by: dvr
how do i know if it has at least 80% of its rated power available on the 12V rails ?
Originally posted by: HOOfan 1
Generally PSUs that come with cases, especially if the Case/PSU combo is cheap, are not a PSU you would really want to run your computer with.
You will know if the PSU has at least 80% of its power available for 12V by looking at the label, or a general breakdown of the rails.
There may be more than 1 12V rail and you generally cannot add the values together, but hopefully there will be a listing of the max combined rating for 12V power. It is usually rated in Amperes and Watts =Amperes * Volts so for example if you have a 350W PSU and it has 25A available for 12V power then it has 300W available for 12V power and 300/350=.857 or 85.7% of its power available for 12V.
Originally posted by: rarebear
Need 500w-600w
Will you ever go SLI or Crossfire Dual Video Cards in the next 3-4 years???
Then you may want to spend $30-$40 more and get a 750w-850+ watts for future expansion.
Originally posted by: theAnimal
Originally posted by: rarebear
Need 500w-600w
Will you ever go SLI or Crossfire Dual Video Cards in the next 3-4 years???
Then you may want to spend $30-$40 more and get a 750w-850+ watts for future expansion.
Did you even look at the chosen video card?
A good quality 400W+ PSU is plenty, including OCing and even 2 HD4670. Antec Earthwatts, Corsair or Seasonic would be good choices.