Power supply help !!

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I used the cooler master power calculator and it says
Your Recommended Minimum Power Supply is 422W
I was thinking of buying a Seasonic s12ii 520w psu.
So is that cool or should I buy another one ?
If another one then which one ?? Please specify
Thanks

 

[Rogue Leader]

That is an excellent quality PSU, and more than enough if thats what you calculate to. Post your full system specs and we can confirm.

 

[littleleo]

Having more power then the minimum is not a problem most of us do that. So if you do an upgrade on your GPU later you don't have to upgrade the PSU too.

 

[AdGo]

That is an excellent quality PSU, and more than enough if thats what you calculate to. Post your full system specs and we can confirm.

http://pcpartpicker.com/p/7PhnRB
Here it says 353 W but when I calculated on cooler master power calculator it said 422W

 

[littleleo]

You should be fine, Seasonic is one of the better brands. And the 270x needs a 500w or better. I would however go with an 8GB Kit (2x4GB) instead of 1 8GB stick. Then your memory will be running in dual channel mode.

 

[AdGo]

You should be fine, Seasonic is one of the better brands. And the 270x needs a 500w or better. I would however go with an 8GB Kit (2x4GB) instead of 1 8GB stick. Then your memory will be running in dual channel mode.

Dual channel memory kit costs more in my country 🙁 or is sometimes not available
Like Kingston hyperx fury or Corsair Vengeance.
BTW I live in India

 

[InvalidError]

Practically all "power estimators" produce grossly exaggerated estimates because they assume the worst case for everything and top that off with an additional safety margin.

Your PC might not even use 300W including PSU losses under stress-test conditions.

 

[littleleo]

You should be fine, Seasonic is one of the better brands. And the 270x needs a 500w or better. I would however go with an 8GB Kit (2x4GB) instead of 1 8GB stick. Then your memory will be running in dual channel mode.

Dual channel memory kit costs more in my country 🙁 or is sometimes not available
Like Kingston hyperx fury or Corsair Vengeance.
BTW I live in India

I understand, perhaps just two 4gb stick of the same brand and model is cheaper. I love Indian food by the way there is a small place near me that has a nice lunch buffet I enjoy from time to time.

 

[Rogue Leader]

Practically all "power estimators" produce grossly exaggerated estimates because they assume the worst case for everything and top that off with an additional safety margin.

Your PC might not even use 300W including PSU losses under stress-test conditions.

I agree, I would say it will hit 300watts dead on. If you want to save a few bucks you could get the Seasonic SII 420w psu. However you can't go wrong going a little bigger for some cushion for future upgrades.

Other than changing the memory for 2x4gb looks like a good setup.

 

[norseman4]

http://pcpartpicker.com/p/7PhnRB
Here it says 353 W but when I calculated on cooler master power calculator it said 422W

It looks like the Cooler Master calculator, since it is only allowing you to select generic items is providing worst case power requirements (ie. taking into consideration overclocking and/or padding the numbers to account for 3rd party cards.)

This can be a good thing.

With PC Part Picker that seems to show the average power draw of the components selected without OC but with brand specific values.

What I typically suggest when using PCPP is to take the value they provide add another 15%, then round up to the next half century. (353 * 1.15 = 406 --> 450W) This would be the absolute minimum PSU wattage that I'd recommend.

Using the same for CM comes out to 500W

The 520W that you are looking at should easily cover it and is a very trusted name in PSUs. (My preference would be to look for a full or modular power supply, but that is still a good unit)