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 Post subject: PSA: PSUs and Haswell
PostPosted: Tue Aug 13, 2013 9:35 am 
Clawhammer
Clawhammer

Joined: Sun Jun 18, 2006 7:37 pm
Posts: 4553
Well then, looks like this slipped by me (and maybe others?). But essentially Haswell has a very low power state that sips so little power that this actually goes beyond the limitation of a lot of power supplies. However, you can disable this and the rumor mill suggests that this is disabled by default anyway. But if you want to take advantage of that power state, read http://techreport.com/review/24897/the- ... ility-list


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 Post subject: Re: PSA: PSUs and Haswell
PostPosted: Wed Aug 14, 2013 6:49 pm 
Coppermine
Coppermine
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Joined: Wed Mar 25, 2009 4:40 pm
Posts: 597
Thanks, LatiosXT, and an excellent reminder to anyone building a computer with Haswell.

I hate to be this blunt, but if you're going to build a Haswell-based computer, then you need to RTFM.

I just completed a build (I'll be posting details soon), but with MSi they're using the terminology EuP 2013, or just EuP. BTW, the default setting on my motherboard was for EuP to be disabled.


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 Post subject: Re: PSA: PSUs and Haswell
PostPosted: Wed Aug 14, 2013 7:21 pm 
Clawhammer
Clawhammer

Joined: Sun Jun 18, 2006 7:37 pm
Posts: 4553
Oh yes, the European thingy where they want power supplies to sip like microamps when shut down. I mucked with it once but it made my system unstable.


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