Power supply calculator

LeeJend

OSNN Veteran Addict
Joined
Jan 25, 2003
Messages
5,291
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

OSNN Veteran Addict
Political User
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Oct 22, 2006
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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

Thief IV
Joined
May 19, 2003
Messages
3,038
My +12v rails are 20A, so I'm happy! Amperage...all up to the PSU manufacturer, sadly :hurt:
 

X-Istence

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Dec 5, 2001
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6,498
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.
 

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