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How much power I need?


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#1 sharly55

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Posted 21 November 2014 - 11:20 AM

I want to buy a new processor and graphics card, a FX-8350 and R9 280, in total both requires 325 watts for work, but I suppose that I have to buy a little bigger PSU if I don't want my pc shutdown each 5 minutes, so I'm thinking in buy a 500-watt PSU, like this

 

http://www.aerocool.com.tw/index.php/power-supply/kcas/82-power-supply/kcas/1211-kcas-500w-information

 

This is enough or do you think that I need a better one?



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#2 j4m3s

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Posted 21 November 2014 - 11:54 AM

It depends partly on the other components you will be using and whether you want some room to upgrade in the future. I like to spend a little more on the power supply for more flexibility.

 

I'd recommend a power supply calculator like this one: http://www.extreme.outervision.com/psucalculatorlite.jsp



#3 jonuk76

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Posted 21 November 2014 - 12:15 PM

I think you will need better than that.  I put in a PC with those specs and average supporting components (2 x DIMMs, 1 x SATA HDD, DVD-RW, 2 x 120mm Fan) into the calculator here.  Allowing for some capacitor ageing (20%), the minimum allowable PSU came out at 495w.  Personally, I'd go for a high quality 650w or higher PSU.  Look higher if you intend to overclock as that really ramps up power use.

 

I don't know much about the Aerocool brand for PSU's.  If you are in the US, this Corsair HX650 is on offer at the moment at Newegg which is a nice deal.  For a higher performance PC I would tend to look for PSU's that have been well reviewed or are made by one of the better OEM's like Seasonic or Superflower.


Edited by jonuk76, 21 November 2014 - 12:17 PM.

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#4 sharly55

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Posted 23 November 2014 - 01:44 AM

Thanks for the advice both, I will seek for a PSU more powerful. :).

 

It's a nice deal but newegg don't have shipping to Mexico so I've to see on amazon or another site






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