Date: Mon, 29 Jul 2019 11:40:18 +0000 (UTC) From: Paul Pathiakis <pathiaki2@yahoo.com> To: freebsd-questions@freebsd.org, RW <rwmaillists@googlemail.com> Subject: Re: Best hardware for a replacement desktop? Message-ID: <1017844498.2766939.1564400418639@mail.yahoo.com> In-Reply-To: <20190723235405.761f1663@gumby.homeunix.com> References: <CAGBxaX=ch_=NKBAme9wTQjSVsJ4Oxschs3Qg7Kddh7KouW3DJw@mail.gmail.com> <5ceb24c1-66ce-2603-5eed-78283d9676b7@holgerdanske.com> <CAGBxaXmiAy2xAKT1oyat4J_Q-gOFTzEEiQQso3oTS9EqoY3ayQ@mail.gmail.com> <23861.63968.885139.970960@jerusalem.litteratus.org> <1618173539.5511975.1563822072600@mail.yahoo.com> <CAGBxaXnKpD8ok%2B9YPr_s1fYrEnj%2BWP20_5dAFp17Bz2KdReKEg@mail.gmail.com> <1125579496.1306494.1563881223475@mail.yahoo.com> <20190723173126.2a26ee26@archlinux> <CAGBxaXmNX9LA1gOsJi5m0MOB90p%2Bmjj6UCMhqK7dN_HPHrqrmQ@mail.gmail.com> <20190723204435.51c334d6@archlinux> <20190723235405.761f1663@gumby.homeunix.com>
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=20
On Tuesday, July 23, 2019, 6:54:23 PM EDT, RW via freebsd-questions <fr=
eebsd-questions@freebsd.org> wrote: =20
=20
On Tue, 23 Jul 2019 20:44:35 +0200
Ralf Mardorf via freebsd-questions wrote:
> On Tue, 23 Jul 2019 13:18:48 -0400, Aryeh Friedman wrote:
> >Since there is only a $15 (at most) between 450/600 W (roughly the
> >same price range) and 850 W I mightiest well do overkill=C2=A0=20
>=20
> Regarding the PSU I'm in favour of overkill, too, if fundable. I'm
> surprised about the minimal price differences. I would take a look at
> the Ampere available on the secondary side.
>=20
> While I disagree with Paul Pathiakis regarding the "overkill", he has
> good a good point: "efficiency"
The reason for avoiding overpowered PSUs is not the difference in
price, it's that they are optimized for different loads.=C2=A0=20
## and here I was thinking I was going to have to explain this... :D
P.
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Am 29.07.2019 13:40, schrieb Paul Pathiakis via freebsd-questions:
>
> The reason for avoiding overpowered PSUs is not the difference in
> price, it's that they are optimized for different loads.
> ## and here I was thinking I was going to have to explain this... :D
> P.
true and the best efficiency you reach if you use 50% of the PSU.
If you under or over 50% you will lose efficiency.
If you would like to have the best efficiency make sure, you buy a PSU
that has the double power you require and make sure you buy a 80 plus
gold or higher.
I keep it for yourself the make a calculation how much power you waste
compared to the higher price you have to pay.
Here you can find a quick overview:
https://en.wikipedia.org/wiki/80_Plus
--
Gruß
Matthias
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