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powersupply calculator

pretty neat, checked it vs the takaman in 'how to buy a psu' sticky... came out pretty similar
 
its ok but dosent give you the amp ratings you need for your different rails.
 
nomak said:
its ok but dosent give you the amp ratings you need for your different rails.
Click to expand...

which is exactly the most important part of any PSU calculator
the other advantage takaman's has is you can enter in amp figures for items not listed
set a utilization level, see the combined wattage or the +3.3V\5V rail (which used to be very important and in an old box still is)
and search PSUs based on the results

though the returns arent qualified with any adjustment for a derating curve
which can be vastly different from one manufacturer to the next
and is how some 350s can put out more watts than many so called 500s
 
I'll agree this seems pretty usefull. It did reaffirm my belief that my PSU was *almost* at full power load. Good thing i unplugged that 2nd drive when i bought my new 6800
 
SystemERRor said:
I'll agree this seems pretty usefull. It did reaffirm my belief that my PSU was *almost* at full power load. Good thing i unplugged that 2nd drive when i bought my new 6800
Click to expand...


all calculators are additive of the maximum deaw of the components
and all the component never hit their full draw at the same time
understanding how many amps are being drawn in what rail is important


typical and worse case are quite different here is an example of typical
Real System Power Requirements @ spcr
the calculator above can easilly pad in the spinup draw of all the drives & Fans which is the max, but that will drop to about 1\4 of that once they have spun up. You wouldnt get hit with the spinup of all your opticals at the same time anyway, you can delay spinup of HDDs through many controllers (typically SCSI and or IDE RAID)

its neither representative of a typical draw or a worse case draw. And without the amps and the draws they used for the components its hard to employ it to figure out either.


Watts dont mean Jack

.
 
Well, all i know is that my PSU stopped clicking once i removed my CD-R drive. That's about it.
 
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