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From: Andy on 7 May 2010 22:38
Based on the photo
<http://www.hardwaresecrets.com/fullimage.php?image=17043>, it looks
like the fan blows air into the power supply case.

On Fri, 07 May 2010 21:34:38 -0400, me <noemail(a)nothere.com> wrote:

>On Fri, 7 May 2010 17:15:17 -0600, "peter" <peter(a)nowhere.net> wrote:
>
>>I have been building systems for about 20 years and I have yet to come
>>across
>>a reputable PSU that blows into the Case........
>>never heard of a 500W Rocketfish
>
>
>I did some research: The ATX specification suggests the use of a
>properly placed power supply to cool the CPU. If you recall some of
>the systems in the early ATX days, they often ran without CPU fans.
>Specifically I recall Dell, Compaq, and HP systems with large vertical
>fin heatsinks on CPU's and no fans. Apparently some vendors adhere to
>the earlier interpretation, and some ignore it in favor of modern
>tradition for aftermarket supplies.
>
>As for the Rocketfish brand, it's actually a rebrand that Best Buy
>does of a CWT. It got great reviews, and you can get them open box for
>a steal, so I went with it. http://www.hardwaresecrets.com/article/748
>
>
>
>
From: peter on 7 May 2010 22:43
So I went to the review and took a good long look at the Fan setup of the
PSU in Zoom view
and I would suggest you do the same and compare it to the unit you own.
To me it looks like the blades of the fan are angled to suck air in...

peter

--
If you find a posting or message from me offensive,inappropriate
or disruptive,please ignore it.
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to me and I will be only too happy to demonstrate :-)


"me" <noemail(a)nothere.com> wrote in message
news:abf9u5167g3ggmf7sfa5tpool75ft0asj2(a)4ax.com...
> On Fri, 7 May 2010 17:15:17 -0600, "peter" <peter(a)nowhere.net> wrote:
>
>>I have been building systems for about 20 years and I have yet to come
>>across
>>a reputable PSU that blows into the Case........
>>never heard of a 500W Rocketfish
>
>
> I did some research: The ATX specification suggests the use of a
> properly placed power supply to cool the CPU. If you recall some of
> the systems in the early ATX days, they often ran without CPU fans.
> Specifically I recall Dell, Compaq, and HP systems with large vertical
> fin heatsinks on CPU's and no fans. Apparently some vendors adhere to
> the earlier interpretation, and some ignore it in favor of modern
> tradition for aftermarket supplies.
>
> As for the Rocketfish brand, it's actually a rebrand that Best Buy
> does of a CWT. It got great reviews, and you can get them open box for
> a steal, so I went with it. http://www.hardwaresecrets.com/article/748
>
>
>
>
>
From: Fred on 8 May 2010 01:46
me wrote:
> OK... I live in the dark ages... but what's with "modern" power
> supplies blowing INTO the case instead of out of it? Pushing hot air
> in can't possibly be good - why not blow it right out and let the draw
> cool the rest of the case?
>
> Are most of you opening up your PS and reversing these back-asswards
> fans?

To be clear here .
A lot of the modern power supplies employ much larger slower revolving fans
that are designed to run more quietly.
A 135mm fan is placed in the bottom or top of the unit (depending on your
perspective and where the supply is mounted in your case) which draws air
from within the case and exhausts it out of the rear vent of the power
supply to the outside.
With these power supplies the rear vent is situated where the smaller type
of fans would normally be placed.
If yours is doing the opposite, i.e. sucking air from the outside and
exhausting into the case then I would change the direction.



From: Barry Watzman on 8 May 2010 10:46
That is correct, but those systems had LARGE case fans blowing air
directly across those CPU "heatsink only" coolers. It was a sound
design at the time, although I didn't like it.

me wrote:

>
> I did some research: The ATX specification suggests the use of a
> properly placed power supply to cool the CPU. If you recall some of
> the systems in the early ATX days, they often ran without CPU fans.
> Specifically I recall Dell, Compaq, and HP systems with large vertical
> fin heatsinks on CPU's and no fans.>
>
>
From: Barry Watzman on 8 May 2010 10:47
You cannot conclude that without knowing which way the blades turn,
clockwise or counter-clockwise.

peter wrote:
> So I went to the review and took a good long look at the Fan setup of
> the PSU in Zoom view
> and I would suggest you do the same and compare it to the unit you own.
> To me it looks like the blades of the fan are angled to suck air in...
>
> peter
>
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