Power supply calculator

[Petros]

Who knows how long it will be updated and accurate, but as of this posting it has most of the latest and greatest computer parts listed. This is a nice reference for anyone building new systems and selecting a PSU.

http://www.extreme.outervision.com/PSUEngine

 

[LeeJend]

I love it. It is actually the most accurate I've come across, but in their own words, useless. From their page:

The recommended total Power Supply Wattage gives you a general idea on what to look for BUT it is NOT a crucial factor in power supply selection! Total Amperage Available on the +12V Rail(s) is the most important, followed by the +5V amperage and then the +3.3V amperage. Example: PSU you want to buy has 400W total wattage output but only has 16A on +12V rail. But your configuration might require 20A on +12V rail.


So when will someone come up with a power supply amperage calculator?

 

[epk]

video cards are the ones that have high aperage requirements, and it says how much on the box (and on the manufacturer's site)... why would you need a calculator for that?

i think that warning is there so no one calcs their wattage and then ruins their system by buying one of those crappy psu that advertise high watts but have low real power

 

[Petros]

My +12v rails are 20A, so I'm happy! Amperage...all up to the PSU manufacturer, sadly :hurt:

 

[Maroon]

frankly speaking there are a lot of similar progs:

http://www.journeysystems.com/power_supply_calculator.php

http://www.schrockinnovations.com/powercalc.php

and in most cases they are used for advertising of PSU brands.

 

[X-Istence]

I have a 350 watt PSU that runs 6 hard drives and a cd-rom drive, as well a GeForce FX5200. My 12v rails has 25 amps.