Too much airflow over processor rob video card airflow?

2008-01-10 18:03:45

#1

jsnipy: ...; +3,277|6785|...

After changing case fans (which draw a lot more) out and putting on cpu cooler my video card jumped up 10 degrees. It is because the card is being robbed of air? Don't see why the temperature would jump so drastically.

see picture: http://img169.imageshack.us/img169/972/img7635xk0.jpg

The cabling closes the to the front case fan is quite thinned out and there is a more than reasonable air channel.

thx in advance.

2008-01-10 18:12:37

#2

heggs: Spamalamadingdong; +581|6651|New York

The natural airflow would need some flow below your video card to properly allow cooling to the whole system (please excuse bad grammar, currently drinking). You're right jsnipy, you don't get much of any improvement because you have no air to move. This is almost similar to the picture of the case with tons of fans. If you don't have adequate airflow, you won't get much cooling.

Opening up the back may help, but then you allow dust and such in, which is equally undesirable.

Remember Me As A Time Of Day

2008-01-10 18:16:01

#3

nukchebi0: Пушкин, наше всё; +387|6587|New Haven, CT

If your CPU cooler is sucking more air in, the air channel it draws from moves faster. This creates a lower pressure stream sucking in more air and preventing it from flowing over the lower side of you video card.

Put up a picture unedited and I'll draw it for you.

2008-01-10 18:36:55

#4

jsnipy: ...; +3,277|6785|...

nukchebi0 wrote:
Put up a picture unedited and I'll draw it for you.

http://img185.imageshack.us/img185/2067 … 5uuto7.jpg

2008-01-10 19:09:36

#5

nukchebi0: Пушкин, наше всё; +387|6587|New Haven, CT

https://img222.imageshack.us/img222/314/caseflowoz2.jpg

There you go.

2008-01-10 19:11:58

#6

jsnipy: ...; +3,277|6785|...

Maybe i'll cut the speed down, thx

2008-01-10 19:12:37

#7

nukchebi0: Пушкин, наше всё; +387|6587|New Haven, CT

You're welcome.

2008-01-11 00:45:44

#8

Gawwad: My way or Haddaway!; +212|6948|Espoo, Finland

It would be great if the GPU's had the heatsink on top (i.e. on the CPU's side). Would make some excellent cooling when fitted with an 'open' after market HS. (not that box blocking outside airflow)

2008-01-11 04:26:06

#9

Stormscythe: Aiming for the head; +88|6812|EUtopia | Austria

Gawwad wrote:
It would be great if the GPU's had the heatsink on top (i.e. on the CPU's side). Would make some excellent cooling when fitted with an 'open' after market HS. (not that box blocking outside airflow)

BTX?

2008-01-11 04:29:28

#10

Ganko_06: Laughter with an S; +167|6908|Camoran's Paradise

You need a fan on the side of your case about where the video card is to suck air off of it.

2008-01-11 06:28:27

#11

GC_PaNzerFIN: Work and study @ Technical Uni; +528|6677|Finland

Ganko_06 wrote:
You need a fan on the side of your case about where the video card is to suck air off of it.

I got a 120mm fan blowing cool air on my gfx card from my windowed sidepanel. drops gfx temps a lot.

3930K | H100i | RIVF | 16GB DDR3 | GTX 480 | AX750 | 800D | 512GB SSD | 3TB HDD | Xonar DX | W8

2008-01-11 07:38:04

#12

jsnipy: ...; +3,277|6785|...

I hooked the speed control up to the zalman and dropped it down to 1200rpm and it definately let the video card temp drop, still not to what it was but at least im on to something.

Once thing I noticed is that is also does not appear to get as hot as it used to under load.

2008-01-11 15:22:12

#13

nukchebi0: Пушкин, наше всё; +387|6587|New Haven, CT

Since you are moving the air moer slowly (in less quantities), the pressure difference is less. It is the expected, honestly.

2008-01-11 15:46:15

#14

Gawwad: My way or Haddaway!; +212|6948|Espoo, Finland

Stormscythe wrote:
Gawwad wrote:
It would be great if the GPU's had the heatsink on top (i.e. on the CPU's side). Would make some excellent cooling when fitted with an 'open' after market HS. (not that box blocking outside airflow)
BTX?

BTX?

2008-01-11 16:06:19

#15

Dragonclaw: Member; +186|6568|Florida

Gawwad wrote:
Stormscythe wrote:
Gawwad wrote:
It would be great if the GPU's had the heatsink on top (i.e. on the CPU's side). Would make some excellent cooling when fitted with an 'open' after market HS. (not that box blocking outside airflow)
BTX?
BTX?

BTX sucks anus. I have a gateway 700GR BTX. Its a piece of crap. The CPU stays at 67-80c the whole time because of the bad airflow, and the heatsink can not be upgraded on a BTX board so Im stuck with a piece of shit black box heatsink that doesnt even have a fan on it. Not to mention BTX PSUs are few and far between, and good luck finding a BTX case and mobo and well, anything BTX related is pretty scarce now.

Last edited by Dragonclaw (2008-01-11 16:07:00)

2009-05-28 15:34:56

#16

jsnipy: ...; +3,277|6785|...

jsnipy wrote:
After changing case fans (which draw a lot more) out and putting on cpu cooler my video card jumped up 10 degrees. It is because the card is being robbed of air? Don't see why the temperature would jump so drastically.

see picture: http://img169.imageshack.us/img169/972/img7635xk0.jpg

The cabling closes the to the front case fan is quite thinned out and there is a more than reasonable air channel.

thx in advance.

I was thinking about putting the fan vertical instead of horizontal (I have a 120mm fan at top of case). Anything I'm not foreseeing?

2009-05-28 15:42:00

#17

GC_PaNzerFIN: Work and study @ Technical Uni; +528|6677|Finland

Doesn't really matter which way (blowing to back or top) it is. Just keep it as it is, not worth the hassle.

3930K | H100i | RIVF | 16GB DDR3 | GTX 480 | AX750 | 800D | 512GB SSD | 3TB HDD | Xonar DX | W8

2009-05-28 15:43:31

#18

.Sup: be nice; +2,646|6716|The Twilight Zone

maybe put one under the gfx card so it blows the air up?

https://www.shrani.si/f/3H/7h/45GTw71U/untitled-1.png

2009-05-28 15:48:51

#19

GC_PaNzerFIN: Work and study @ Technical Uni; +528|6677|Finland

Its a design flaw of having many compartments. PSU, under gfx, and CPU are are 3 different compartments in this design and there is barely intake at all to the middle compartment (under gfx).

Thats why I bought this Silverstone that intakes air equally to over and under gfx card.

3930K | H100i | RIVF | 16GB DDR3 | GTX 480 | AX750 | 800D | 512GB SSD | 3TB HDD | Xonar DX | W8

BF2S Forums Too much airflow over processor rob video card airflow?

nukchebi0 wrote:

Gawwad wrote:

Ganko_06 wrote:

Stormscythe wrote:

Gawwad wrote:

Gawwad wrote:

Stormscythe wrote:

Gawwad wrote:

jsnipy wrote:

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