Nice PSU wattage calculator

PSUs: The source of DC power for all components in the PC & often a big noise source.

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hyperq
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Nice PSU wattage calculator

Post by hyperq » Wed Sep 14, 2005 8:30 am

If you are buying a PSU but unsure about the wattage you need, try this wattage calculator.

http://www.jscustompcs.com/power_supply/

The only flaw I noticed is that it rates all Athlon64 CPUs at 89W. There is no option for the new 90nm Athlon64 CPUs that are rated at 67W. Besides this, it is a nifty little program.
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mathias
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Re: Nice PSU wattage calculator

Post by mathias » Wed Sep 14, 2005 8:48 am

Looks as bad or worse than other power requirement calculators. I see plenty of flaws, prescot power is understated, they claim a radeon 9600's and geforce 5200's use 40 watts, and that geforce 4's use less than those, that there's no difference between 5700's and 5700 ultras, memory power consumption is also overstated.

The most ridiculous problem is how they generally seem to be pulling the video card power figures out of their asses.
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hyperq
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Post by hyperq » Wed Sep 14, 2005 9:03 am

I also noticed that it doesn't include nVidia 6600 and 6600 GT there, and there should be an option for a Second Video Card.

Still, I think the program gives a pretty good estimate. It will be useful to people who are not sure how many watts they need.

Mathias, is there a wattage calculator that you want to recommend?
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mathias
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Post by mathias » Wed Sep 14, 2005 9:11 am

hyperq wrote:Mathias, is there a wattage calculator that you want to recommend?
No. If you don't want to bather to calculate it yourself, then your no worse off just guessing. And you're better of calculating what you can check easily and guessing the rest.
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hyperq
Posts: 104
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Location: Ithaca, New York, USA

Post by hyperq » Wed Sep 14, 2005 9:18 am

mathias wrote:
hyperq wrote:Mathias, is there a wattage calculator that you want to recommend?
No. If you don't want to bather to calculate it yourself, then your no worse off just guessing. And you're better of calculating what you can check easily and guessing the rest.

I am trying to point out some useful resources for newbies. It will be more helpful if you can offer some constructive advice or better alternatives. Everyone can complain, but not everyone can be helpful.
Last edited by hyperq on Wed Sep 14, 2005 10:03 am, edited 1 time in total.
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oakdad
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Post by oakdad » Wed Sep 14, 2005 10:00 am

Nice just wish it would state how much each rail would need.
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stromgald
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Post by stromgald » Wed Sep 14, 2005 10:23 am

Is this thing correct in estimating 25W for a PCI SCSI controller card? I just put an old PCI SCSI card into my new computer to hook it up to an old flatbed scanner. With everything else in my system (Athlon64 3200+, DVD-ROM, CD-RW, 3 HDD, and 6800 Vanilla), I'm getting 347W with this calculator, quite close to my PSU's rating (350W) :shock: . My computer seems to run fine so I think this calculator is probably overestimating a bit :wink: .
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Devonavar
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Post by Devonavar » Wed Sep 14, 2005 10:26 am

Please continue discussion in this old thread about PSU calculators:

http://forums.silentpcreview.com/viewtopic.php?t=20726
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