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Top-Venting PSUs, PSU-on-bottom cases?

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June 8, 2014 2:12:47 PM

I've been upgrading my system recently, with the goals of making it cooler and quieter. I recently added an SSD and a Noctuca NH-D14. I am impressed by the silence of the cooler and its fans, and now am looking to take the next step.

I was pretty proud of myself for finding some PSUs with good ratings which were both quiet, and vented vertically, which seems like a good idea for quiet, effective cooling. However, my current case doesn't have any vents on top. When looking for a new, quiet case, I was baffled to see that most cases seem to have the PSU on bottom these days.

Minor question: When/why did PSUs move to the bottom?

More important question: Should I look for a top-vented PSU and top-vented case in order to make a cool quiet PC? Or is another combo more viable?

I am currently running a Phenom 955 with a Radeon 6870 and my 450W PSU is doing just fine, other than the fact that it is now the loudest component in my case. Can anyone suggest a good pairing of PSU/case in the ~$200 range?

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a b ) Power supply
June 8, 2014 2:21:04 PM

rwhipple08 said:
I've been upgrading my system recently, with the goals of making it cooler and quieter. I recently added an SSD and a Noctuca NH-D14. I am impressed by the silence of the cooler and its fans, and now am looking to take the next step.

I was pretty proud of myself for finding some PSUs with good ratings which were both quiet, and vented vertically, which seems like a good idea for quiet, effective cooling. However, my current case doesn't have any vents on top. When looking for a new, quiet case, I was baffled to see that most cases seem to have the PSU on bottom these days.

Minor question: When/why did PSUs move to the bottom?

More important question: Should I look for a top-vented PSU and top-vented case in order to make a cool quiet PC? Or is another combo more viable?

I am currently running a Phenom 955 with a Radeon 6870 and my 450W PSU is doing just fine, other than the fact that it is now the loudest component in my case. Can anyone suggest a good pairing of PSU/case in the ~$200 range?


Those bottom PSUs also vent out of the bottom and the newer cases have vent holes down there that match perfectly,the PSU on the bottom keeps the PSU itself cooler and helps it live longer and perform better..or so some claim. It also makes the box more stable and gives more fan room up at the top and may help keep the rest of the machine cool.
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June 8, 2014 2:24:33 PM

Thanks for the suggestion. It looks very nice...but this still puts the PSU on bottom. Is the idea that PSUs typically vent in from the bottom anyways, so put it on bottom, let it pull in from outside air instead of in from the case, and vent out the back? Is this ideal for cool/quiet operation?
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June 8, 2014 2:35:30 PM

Thanks...that makes sense. I hadn't really considered that the airflow could go that way. I was just so stuck on the first novel idea I came across that I didn't really understand the second one.
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a c 77 ) Power supply
June 8, 2014 2:37:45 PM

rwhipple08 said:
I've been upgrading my system recently, with the goals of making it cooler and quieter. I recently added an SSD and a Noctuca NH-D14. I am impressed by the silence of the cooler and its fans, and now am looking to take the next step.

I was pretty proud of myself for finding some PSUs with good ratings which were both quiet, and vented vertically, which seems like a good idea for quiet, effective cooling. However, my current case doesn't have any vents on top. When looking for a new, quiet case, I was baffled to see that most cases seem to have the PSU on bottom these days.

Minor question: When/why did PSUs move to the bottom?

More important question: Should I look for a top-vented PSU and top-vented case in order to make a cool quiet PC? Or is another combo more viable?

I am currently running a Phenom 955 with a Radeon 6870 and my 450W PSU is doing just fine, other than the fact that it is now the loudest component in my case. Can anyone suggest a good pairing of PSU/case in the ~$200 range?


bottom mounted psu provide best performance as they intake only cold air from the room rather than worm of the inside of the case. you really dont need to spend 200$.
i suggest these

PCPartPicker part list: http://pcpartpicker.com/p/xDYwrH
Price breakdown by merchant: http://pcpartpicker.com/p/xDYwrH/by_merchant/
Benchmarks: http://pcpartpicker.com/p/xDYwrH/benchmarks/

Case: Corsair 300R ATX Mid Tower Case ($59.99 @ Newegg)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)
Total: $109.98
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-06-08 17:36 EDT-0400)
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a c 286 ) Power supply
June 8, 2014 2:56:12 PM

The PSU fan is an intake, not an exhaust, it pulls air from within the case and exhausts it out the back of the case, you seem to be treating it as a reverse.

As long as you buy a good PSU it really won't care if it is drawing 25C air from outside the case or the 35C air from within the case, if you buy a cheap one thats a different story.
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June 9, 2014 12:05:39 PM

chris987 said:
rwhipple08 said:
I've been upgrading my system recently, with the goals of making it cooler and quieter. I recently added an SSD and a Noctuca NH-D14. I am impressed by the silence of the cooler and its fans, and now am looking to take the next step.

I was pretty proud of myself for finding some PSUs with good ratings which were both quiet, and vented vertically, which seems like a good idea for quiet, effective cooling. However, my current case doesn't have any vents on top. When looking for a new, quiet case, I was baffled to see that most cases seem to have the PSU on bottom these days.

Minor question: When/why did PSUs move to the bottom?

More important question: Should I look for a top-vented PSU and top-vented case in order to make a cool quiet PC? Or is another combo more viable?

I am currently running a Phenom 955 with a Radeon 6870 and my 450W PSU is doing just fine, other than the fact that it is now the loudest component in my case. Can anyone suggest a good pairing of PSU/case in the ~$200 range?


bottom mounted psu provide best performance as they intake only cold air from the room rather than worm of the inside of the case. you really dont need to spend 200$.
i suggest these

PCPartPicker part list: http://pcpartpicker.com/p/xDYwrH
Price breakdown by merchant: http://pcpartpicker.com/p/xDYwrH/by_merchant/
Benchmarks: http://pcpartpicker.com/p/xDYwrH/benchmarks/

Case: Corsair 300R ATX Mid Tower Case ($59.99 @ Newegg)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)
Total: $109.98
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-06-08 17:36 EDT-0400)


Chris,

I checked out the XFX-550W and found a significant number of reviews stating the unit is usually on the louder end, and oftentimes is defective and or very-loud. Have you had a good experience with it?

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a c 77 ) Power supply
June 9, 2014 12:40:24 PM

rwhipple08 said:
chris987 said:
rwhipple08 said:
I've been upgrading my system recently, with the goals of making it cooler and quieter. I recently added an SSD and a Noctuca NH-D14. I am impressed by the silence of the cooler and its fans, and now am looking to take the next step.

I was pretty proud of myself for finding some PSUs with good ratings which were both quiet, and vented vertically, which seems like a good idea for quiet, effective cooling. However, my current case doesn't have any vents on top. When looking for a new, quiet case, I was baffled to see that most cases seem to have the PSU on bottom these days.

Minor question: When/why did PSUs move to the bottom?

More important question: Should I look for a top-vented PSU and top-vented case in order to make a cool quiet PC? Or is another combo more viable?

I am currently running a Phenom 955 with a Radeon 6870 and my 450W PSU is doing just fine, other than the fact that it is now the loudest component in my case. Can anyone suggest a good pairing of PSU/case in the ~$200 range?


bottom mounted psu provide best performance as they intake only cold air from the room rather than worm of the inside of the case. you really dont need to spend 200$.
i suggest these

PCPartPicker part list: http://pcpartpicker.com/p/xDYwrH
Price breakdown by merchant: http://pcpartpicker.com/p/xDYwrH/by_merchant/
Benchmarks: http://pcpartpicker.com/p/xDYwrH/benchmarks/

Case: Corsair 300R ATX Mid Tower Case ($59.99 @ Newegg)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)
Total: $109.98
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-06-08 17:36 EDT-0400)


Chris,

I checked out the XFX-550W and found a significant number of reviews stating the unit is usually on the louder end, and oftentimes is defective and or very-loud. Have you had a good experience with it?



i have built several pc with the specific psu with no problems. also know that all xfx are seasonic made one of the best in the business. to put it more simple you cant find a grade A component psu, like this one, in such low price. thats why its highly recommended by the community! with your system you will hardly utilize half of it!
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