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 Post subject: Question about psu's
PostPosted: Tue Sep 17, 2013 1:03 pm 
8086
8086

Joined: Fri Mar 01, 2013 12:38 pm
Posts: 29
So I'll be running a core i5 haswell with 4600 integrated graphics, every calc I've used says it requires less then 100 watts. So does this mean I can get by with 200 watt PSU For my build?

Note: I'm not running a graphics card!


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 Post subject: Re: Question about psu's
PostPosted: Tue Sep 17, 2013 1:35 pm 
Smithfield
Smithfield

Joined: Sun Jun 18, 2006 7:37 pm
Posts: 5472
My source says at 100% load you should get a 250W PSU with 15A@12V... So I'd get that or a 300W PSU. Note that unless you're doing a complete system burn in, your system will hardly ever be at 100% load.


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 Post subject: Re: Question about psu's
PostPosted: Tue Sep 17, 2013 3:22 pm 
8086
8086

Joined: Fri Mar 01, 2013 12:38 pm
Posts: 29
LatiosXT wrote:
My source says at 100% load you should get a 250W PSU with 15A@12V... So I'd get that or a 300W PSU. Note that unless you're doing a complete system burn in, your system will hardly ever be at 100% load.


What source are u using?


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 Post subject: Re: Question about psu's
PostPosted: Tue Sep 17, 2013 3:39 pm 
Team Member
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Joined: Wed Aug 12, 2009 12:09 pm
Posts: 622
How much money would you save by getting a 200W over a 300W psu? I see 400W corsairs for $30 on sale. Like latios said, the PSU will not use up all potential wattage.

What's a " complete system burn in", Latios?


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 Post subject: Re: Question about psu's
PostPosted: Tue Sep 17, 2013 3:43 pm 
Smithfield
Smithfield

Joined: Sun Jun 18, 2006 7:37 pm
Posts: 5472
http://extreme.outervision.com/psucalculatorlite.jsp I caved in and got a pro subscription though, so I can see more stuff.

A complete system burn-in for the purposes of PSU selection is maxing out both the CPU and GPU by running say Prime95 and Furmark at the same time. Both of these max out the CPU and GPU respectively.


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