Power Supply Wattage Calculator!

There are 'better' and more 'accurate' calculators around.

http://extreme.outervision.com/PSUEngine

That calculator gives you a more comprehensive list of components that you might have in your pc. It even takes into account capacitor aging and system load. It's no alternative to a proper reading, but it will give you a good enough estimate to go on.

For example, the Asus one recommended a 450w. A 9600GT, E8400 with 4GB and a single HDD at load will only pull ~250W. The OuterVision one gave an estimate of around 226W. A good 380W like the Antec EA380 would be more than enough.
 
HardHat said:
There are 'better' and more 'accurate' calculators around.

http://extreme.outervision.com/PSUEngine

That calculator gives you a more comprehensive list of components that you might have in your pc. It even takes into account capacitor aging and system load. It's no alternative to a proper reading, but it will give you a good enough estimate to go on.

For example, the Asus one recommended a 450w. A 9600GT, E8400 with 4GB and a single HDD at load will only pull ~250W. The OuterVision one gave an estimate of around 226W. A good 380W like the Antec EA380 would be more than enough.
Click to expand...

Hmm, that is pretty accurate. Well, I'll add this one too. Thanks HardHat :)
 
HardHat said:
There are 'better' and more 'accurate' calculators around.

http://extreme.outervision.com/PSUEngine

That calculator gives you a more comprehensive list of components that you might have in your pc. It even takes into account capacitor aging and system load. It's no alternative to a proper reading, but it will give you a good enough estimate to go on.

For example, the Asus one recommended a 450w. A 9600GT, E8400 with 4GB and a single HDD at load will only pull ~250W. The OuterVision one gave an estimate of around 226W. A good 380W like the Antec EA380 would be more than enough.
Click to expand...

That one gets it totally wrong, It says I need a 703Watt PSU and I'm running my comp fine with an Antec TruePower trio 650watt
 
Yes...thats why i used commas around 'accurate'. And also why i said a 'good enough estimate.' Its not exact. Feel free to link to another calculator that you know is more accurate.
 
HardHat said:
Yes...thats why i used commas around 'accurate'. And also why i said a 'good enough estimate.' Its not exact. Feel free to link to another calculator that you know is more accurate.
Click to expand...

I'd rather ask someone that really knows about that stuff then using a calculator ;)
 
If you know someone who can do a proper reading, great, good for you. But as far as getting a quick, relatively close estimate...

You're running a 920 with 6GB and two video cards...judging by the short length in your pics, they're not 'high-end'. So how exactly did it recommend 703w? Or did you upgrade in the past 2 months since the pictures were posted?
 
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HardHat said:
If you know someone who can do a proper reading, great, good for you. But as far as getting a quick, relatively close estimate...

You're running a 920 with 6GB and two video cards...judging by the short length in your pics, they're not 'high-end'. So how exactly did it recommend 703w?
Click to expand...

1 Card actually, the other one is broken (I have artifacts with it)

Well, I just set High-end Mobo, a core i7 920 overclocked to 3.25GHz, 3x2GB DDR3 RAM, 1x 8600GT, 2x 250GB SATA, 6x USB Device, 1x 140 no-led fan, 2x 250 no-led fan, 1x 250 led fan, and no lcs.
 
Err...it only recommended 322W with your specs...

Motherboard: High End Destktop
920 @ 3250Mhz
3 sticks DDR3
8600GT
2 HDDs
6 USB Devices
1 x 140mm Regular
2 x 250mm Regular
1 x 250mm LED

Double checked, and even set your voltage to a high 1.6V. I know you're not using that, but still, it only recommended a 398W. How in the world did you get 703W?
 
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HardHat said:
Err...it only recommended 322W with your specs...

Motherboard: High End Destktop
920 @ 3250Mhz
3 sticks DDR3
8600GT
2 HDDs
6 USB Devices
1 x 140mm Regular
2 x 250mm Regular
1 x 250mm LED

Double checked, and even set your voltage to a high 1.6V. I know you're not using that, but still, it only recommended a 398W. How in the world did you get 703W?
Click to expand...

Ahh I found what I did wrong. I selected quad sockets because my CPU was a quadcore but didn't read the note under it xD And it's only 1.24vCore ;)
 
I haven't used these calculators, but something everyone should remember is that most power supplies are rated at their max output, which isn't the typical output. As the power supply heats up, efficiency drops, and the best of power supplies usually only put out 85%-90% of their rated output under real load. Cheaper power supplies are lucky to hit 75%-80%. I always overbuy my power supplies though, makes future upgrading easier. Plus, there is the benefit of bragging that your system has a 1kW power supply... :)
 
Please remember, wattage isn't the most important thing, especially with high-end video cards. It's the amount of amps on your +12v rails.

~Gooda~
 
Havegooda {A|R} said:
Please remember, wattage isn't the most important thing, especially with high-end video cards. It's the amount of amps on your +12v rails.

~Gooda~
Click to expand...
True, but watts = volts * amps, and most power supplies break out available watts on each voltage rail. You have a good point though. :)
 
Naismith said:
True, but watts = volts * amps, and most power supplies break out available watts on each voltage rail. You have a good point though. :)
Click to expand...

So I would have 228Watts on my 3 +12 rails with 19amps ?
 
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