I'm looking for a 250 W PSU 80+ micro-ATX in Europe and I have trouble
to find one. Dell sells some Desktop PC with PSU of this type, but I'm
building a PC myself and so I need it alone.
Does someone has some hints?
Best regards to everyone and thanks to replying people,
On Mon, 02 Nov 2009 21:40:59 +0100, twistedbrain
<andrea.ferraris@gmail.com> wrote:
>I'm looking for a 250 W PSU 80+ micro-ATX in Europe and I have trouble
>to find one. Dell sells some Desktop PC with PSU of this type, but I'm
>building a PC myself and so I need it alone.
>
>Does someone has some hints?
>
>Best regards to everyone and thanks to replying people,
>
>Andrea
In article <hcng3v$vlv$1@aioe.org>, andrea.ferraris@gmail.com says...
>
> I'm looking for a 250 W PSU 80+ micro-ATX in Europe and I have trouble
> to find one. Dell sells some Desktop PC with PSU of this type, but I'm
> building a PC myself and so I need it alone.
>
> Does someone has some hints?
>
> Best regards to everyone and thanks to replying people,
>
> Andrea
they are 300 W, it is about 20% more than the desired.
I'm not obsessed by 250 (also 240, 255, 235 or 260 do work :-).
The point is that this Tom's hardware article http://www.tomshardware.com/reviews/...cy,2069-5.html
I found very interesting, demonstrates that a PSU really well sized (in
such case 220 W) gives a power saving of some tens percents, because the
PSU works at a load level where it yelds really much and better.
My system will be a bit energy hungrier than such of the article; it is
my CPU will be the E7500 (2,93 Ghz) instead of the E7200 (2,53 Ghz),
I'll have 2 hard disks (but green, it is WD SATA 500GB 32Mb cache), and
then also 4 GB of RAM and a DVD writer, so, instead of a 220 W PSU a 250
should work right, but a 300 will be at least a bit oversized and so
overconsuming.
In article <hcpts5$5ff$1@aioe.org>, andrea.ferraris@gmail.com says...
>
> Andy and Steve, thank you ... but ;-)
>
> they are 300 W, it is about 20% more than the desired.
> I'm not obsessed by 250 (also 240, 255, 235 or 260 do work :-).
> The point is that this Tom's hardware article
> http://www.tomshardware.com/reviews/...cy,2069-5.html
> I found very interesting, demonstrates that a PSU really well sized (in
> such case 220 W) gives a power saving of some tens percents, because the
> PSU works at a load level where it yelds really much and better.
>
> My system will be a bit energy hungrier than such of the article; it is
> my CPU will be the E7500 (2,93 Ghz) instead of the E7200 (2,53 Ghz),
> I'll have 2 hard disks (but green, it is WD SATA 500GB 32Mb cache), and
> then also 4 GB of RAM and a DVD writer, so, instead of a 220 W PSU a 250
> should work right, but a 300 will be at least a bit oversized and so
> overconsuming.
>
> Regards and thanks again,
>
> Andrea
300W rating was the smallest I found with 80+ certification.
Do report back if you happen to find 250W P/S that are 80+ certified
and available for sale.
Steve ha scritto:
> In article <hcpts5$5ff$1@aioe.org>, andrea.ferraris@gmail.com says...
>> Andy and Steve, thank you ... but ;-)
>>
>> they are 300 W, it is about 20% more than the desired.
>> I'm not obsessed by 250 (also 240, 255, 235 or 260 do work :-).
>> The point is that this Tom's hardware article
>> http://www.tomshardware.com/reviews/...cy,2069-5.html
>> I found very interesting, demonstrates that a PSU really well sized (in
>> such case 220 W) gives a power saving of some tens percents, because the
>> PSU works at a load level where it yelds really much and better.
>>
>> My system will be a bit energy hungrier than such of the article; it is
>> my CPU will be the E7500 (2,93 Ghz) instead of the E7200 (2,53 Ghz),
>> I'll have 2 hard disks (but green, it is WD SATA 500GB 32Mb cache), and
>> then also 4 GB of RAM and a DVD writer, so, instead of a 220 W PSU a 250
>> should work right, but a 300 will be at least a bit oversized and so
>> overconsuming.
>>
>> Regards and thanks again,
>>
>> Andrea
>
> 300W rating was the smallest I found with 80+ certification.
> Do report back if you happen to find 250W P/S that are 80+ certified
> and available for sale.
The problem is "available for sale"; it is b.e. Dell uses in some of its
Desktop, 80+ (or better) PSUs. I don't understand why they are so
difficult to find because, if you use the PC many hours a day, b.e. in
office context, then in few years you can get back the money you spent
to buy them or more because the difference is not so big (from about 30$
to about $50) and you are environment friendly.
I've found this one, Seasonic SS-250SU, but I fear that it can't match
with my micro ATX mobo, now I'll check and then if it doesn't work I'll
go for a 300 W (I've found one for sale, new also here in Italy). I'd
like also if it can be quiet.
twistedbrain ha scritto:
> Steve ha scritto:
>> In article <hcpts5$5ff$1@aioe.org>, andrea.ferraris@gmail.com says...
>>> Andy and Steve, thank you ... but ;-)
>>>
>>> they are 300 W, it is about 20% more than the desired.
>>> I'm not obsessed by 250 (also 240, 255, 235 or 260 do work :-).
>>> The point is that this Tom's hardware article
>>> http://www.tomshardware.com/reviews/...cy,2069-5.html
>>> I found very interesting, demonstrates that a PSU really well sized
>>> (in such case 220 W) gives a power saving of some tens percents,
>>> because the PSU works at a load level where it yelds really much and
>>> better.
>>>
>>> My system will be a bit energy hungrier than such of the article; it
>>> is my CPU will be the E7500 (2,93 Ghz) instead of the E7200 (2,53
>>> Ghz), I'll have 2 hard disks (but green, it is WD SATA 500GB 32Mb
>>> cache), and then also 4 GB of RAM and a DVD writer, so, instead of a
>>> 220 W PSU a 250 should work right, but a 300 will be at least a bit
>>> oversized and so overconsuming.
>>>
>>> Regards and thanks again,
>>>
>>> Andrea
>>
>> 300W rating was the smallest I found with 80+ certification.
>> Do report back if you happen to find 250W P/S that are 80+ certified
>> and available for sale.
>
> The problem is "available for sale"; it is b.e. Dell uses in some of its
> Desktop, 80+ (or better) PSUs. I don't understand why they are so
> difficult to find because, if you use the PC many hours a day, b.e. in
> office context, then in few years you can get back the money you spent
> to buy them or more because the difference is not so big (from about 30$
> to about $50) and you are environment friendly.
> I've found this one, Seasonic SS-250SU, but I fear that it can't match
> with my micro ATX mobo, now I'll check and then if it doesn't work I'll
> go for a 300 W (I've found one for sale, new also here in Italy). I'd
> like also if it can be quiet.
>
> Regards and thanks again
I think I was wrong, if I understand well it is "up to 80%", so it's not
80+. Then I saw also that less powerfull is the PSU more quickly turns
its fan when the power required grows because it become hotter and so
more noisy. I'm wondering if are there fanless PSUs, 80+, 240-260 W and
I'm almost sure that there aren't.
Well, after many Internet search I've found two 300 W PSU 80+ (one ATX,
the other micro ATX) that I can get here where I live without customs
taxes and in short times.
They are the Seasonic SS-300SFD Micro ATX, that I can get all included
for about 64 EUR and the Thermaltake TR2 QFan 300W that I can get at
about 54 EUR.
The micro ATX case I choose should support both (micro ATX and ATX).
What would you sugggest and why?
twistedbrain wrote:
> Hello world!
>
> Well, after many Internet search I've found two 300 W PSU 80+ (one ATX,
> the other micro ATX) that I can get here where I live without customs
> taxes and in short times.
>
> They are the Seasonic SS-300SFD Micro ATX, that I can get all included
> for about 64 EUR and the Thermaltake TR2 QFan 300W that I can get at
> about 54 EUR.
>
> The micro ATX case I choose should support both (micro ATX and ATX).
> What would you sugggest and why?
>
> Thanks to replying people, regards to all,
>
> Andrea
The Seasonic is fixed 220VAC input. As long as that is what you're looking
for, the specs look great. They look better than any other microATX
I was looking at yesterday. Active PFC works against efficiency, but
is mandated for operation in Europe.
The Thermaltake has slightly weaker low voltage rails. There is a
whole family of power supplies with TR2 in the name, so it is quite
possible the one you're looking at, is a different model.
Paul thank You,
> The Seasonic is fixed 220VAC input. As long as that is what you're looking
> for, the specs look great. They look better than any other microATX
> I was looking at yesterday. Active PFC works against efficiency, but
> is mandated for operation in Europe.
I have to say that I know about nothing about that, so what I'm going
to write
could be fully wrong, but I report only things (maybe false or
misunderstood)
I read, it is, I read that Active PFC enhance efficiency in some
different places
and (but it's unrelated - I think) I saw that 220 vattage instead of
110 could be
good for efficiency because in a comparartive table of most efficient
PSU there
were more model at 220 than at 110 and at 220 was given also the
category of
Platinum 80 (also if it was empty).
Anyway this last consideration about vattage is absolutely unsure and
unerliable,
insead, about Active PFC I read that in some different and also
normally reliable
places like Anandtech.
> http://www.seasonic.com/pdf/datashee...S-300SFD%20Act...
>
> 3.3 @ 20A, 5V @ 20A, 12V @ 22.5A, -12V @ 0.8, +5VSB @ 2A
> <---- 125W max ----> <-- 270W -->
> <------------------------- 300W max ------------------->
>
> The Thermaltake has slightly weaker low voltage rails. There is a
> whole family of power supplies with TR2 in the name, so it is quite
> possible the one you're looking at, is a different model.
250W 80+ PSU micro-ATX in Europe 
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