Power supply at the bottom of the computer chassis?

  • Thread starter Thread starter Man-wai Chang to The Door (33600bps)
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Man-wai Chang to The Door (33600bps)

Would it suck a lot of dust like a vacuum cleaner? :)

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Man-wai Chang to The Door (33600bps) said:
Would it suck a lot of dust like a vacuum cleaner? :)
Click to expand...

Do you just get bored easy or something, what with this constant stream of
crap questions?

No, a PSU in the bottom of the case doesn't vacuum up anything, unless the
case designer was stupid enough to put holes in the case directly under the
PSU fan, which certainly isn't the case in my Antec P180.

And shorten yer oversized sig line.
 
No, a PSU in the bottom of the case doesn't vacuum up anything, unless the
case designer was stupid enough to put holes in the case directly under the
PSU fan, which certainly isn't the case in my Antec P180.
Click to expand...

You talking about a dust filter? I was talking about a regular hole!
The old design (power supply at the top) should be more tolerant to dust.

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Would it suck a lot of dust like a vacuum cleaner? :)
Click to expand...
Most power supplies suck air in through the bottom (or top) of the unit
and exhaust it out the back as their cooling strategy. If the air is
dusty it will suck in the dust also. Most time the air comes from inside
the case, so the air comes through the case intakes. Most cases have a
screen on the intakes. Short answer: it probably doesn't matter where in
the case it is, but if you keep your case on the floor and never clean
your screens or blow out the case then it might see a greater than
average flow of dust.
 
Do you just get bored easy or something, what with this constant stream of
crap questions?

No, a PSU in the bottom of the case doesn't vacuum up anything, unless the
case designer was stupid enough to put holes in the case directly under the
PSU fan, which certainly isn't the case in my Antec P180.

And shorten yer oversized sig line.
Click to expand...
Is this a newsgroup or a tree fort?
 
Man-wai Chang to The Door (33600bps) said:
You talking about a dust filter? I was talking about a regular hole!
The old design (power supply at the top) should be more tolerant to
dust.
Click to expand...

I'm talking about no hole at all. The PSU in my P180 gets its air from the
front of the case, the same as if it was at the top, except its /nearer/ to
the source of incoming cool air, which should be better for it.
 
Do you just get bored easy or something, what with this constant stream of
crap questions?

No, a PSU in the bottom of the case doesn't vacuum up anything, unless the
case designer was stupid enough to put holes in the case directly under the
PSU fan, which certainly isn't the case in my Antec P180.

And shorten yer oversized sig line.
Click to expand...

What he said, and...

If you keep your computer elevated (on your desk, for example) instead
of on or near the floor, it might be better, generally.

I say might, because that is not the answer for everybody. For example
if keeping the computer cool is a top priority the 'puter might stay
cooler if it stays near the floor - as long as it's not by a heating
vent or radiator.

I have pets, and they shed a lot, and so I don't just have dust to deal
with but pet hair and dander to be aware of as well. I keep my computer
on my desk, and that seems to keep it fairly dust-free.
 
You talking about a dust filter? I was talking about a regular hole!
The old design (power supply at the top) should be more tolerant to dust.
Click to expand...

Just keep your local area free of dust. If you don't like
housecleaning, hire somebody.
 
Most power supplies suck air in through the bottom (or top) of the unit
and exhaust it out the back as their cooling strategy. If the air is
dusty it will suck in the dust also. Most time the air comes from inside
the case, so the air comes through the case intakes. Most cases have a
screen on the intakes. Short answer: it probably doesn't matter where in
the case it is, but if you keep your case on the floor and never clean
your screens or blow out the case then it might see a greater than
average flow of dust
Click to expand...

It seems to me that, if the intake areas become choked with dust,
overheating will become a problem before PSU sucking dust will become a
problem.
 
kony said:
Perhaps better for it, but that also means less air flows
over the rest of the parts in the system so they get cooled
less, unless you have even more case airflow to compensate
which increases the dust level.
Click to expand...
Yes and no. 140mm fan in the top of the case, 120 in the back, filtered 120
in the front, 140 on the HSF and a twin fan Arctic cooling thingy on my
video card. That do?
 
I'm talking about no hole at all. The PSU in my P180 gets its air from the
front of the case, the same as if it was at the top, except its /nearer/ to
the source of incoming cool air, which should be better for it.
Click to expand...

A typical power supply assumed you to put it at the top of chassis, and
opening at the bottom and the front for air intake. If you mounted it at
the bottom (that doesn't have a hole), the bottom air intake of the
original design would not be functioning!!!

I have never heard of a PSU manufacturer selling a PSU tailored for
bottom mounting! Could you name one?

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Just keep your local area free of dust. If you don't like housecleaning,
hire somebody.
Click to expand...

Your Honor:

This mean a air purifier, and thus a more expensive electricity bill! I
rather not a chassis that put the PSU at the bottom!

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It seems to me that, if the intake areas become choked with dust,
overheating will become a problem before PSU sucking dust will become a
problem.
Click to expand...

The original ATX design didn't expect a power supply at the bottom of
the computer chassis, did it? Not even BTX (or CTX?) expected that, did it?

I guess I should stop thinking about these chassis.

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The original ATX design didn't expect a power supply at the bottom of
the computer chassis, did it? Not even BTX (or CTX?) expected that, did it?

I guess I should stop thinking about these chassis.
Click to expand...
You mount the power supply "upside down" in these cases (fan intake
point up). It is a good design for gaming cases that can then mount an
exhaust fan on the top of the case.
 
You mount the power supply "upside down" in these cases (fan intake
point up). It is a good design for gaming cases that can then mount an
exhaust fan on the top of the case.
Click to expand...

Need to read the manual of the chassis to confirm your statement...

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Man-wai Chang to The Door (33600bps) said:
A typical power supply assumed you to put it at the top of chassis,
and opening at the bottom and the front for air intake. If you
mounted it at the bottom (that doesn't have a hole), the bottom air
intake of the original design would not be functioning!!!

I have never heard of a PSU manufacturer selling a PSU tailored for
bottom mounting! Could you name one?
Click to expand...

Try looking at the PC cases. The PSU (obviously?) isn't mounted so the
intake fan is blocked, there is a gap for air to get in.
 
Man-wai Chang to The Door (33600bps) said:
Your Honor:

This mean a air purifier, and thus a more expensive electricity bill!
I rather not a chassis that put the PSU at the bottom!
Click to expand...

Well, nobody is forcing you to buy one, are they?
And I can't swear for all of them, but some of the Antec cases do this and
they work just fine.
 
TVeblen said:
You mount the power supply "upside down" in these cases (fan intake
point up). It is a good design for gaming cases that can then mount an
exhaust fan on the top of the case.
Click to expand...

I didn't/couldn't in my P180 (Antec PSU as well), but it doesn't matter as
the PSU isn't in contact with the bottome of the case anyway, there is a gap
for airflow.
 
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