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Direct exhaust air of video card ? - Page 2

post #11 of 22
Thread Starter 
Quote:
Originally Posted by windfire View Post
Yes, that is feasible.
However, I would suggest:-
a. adding a larger fan (or 2 little fans like 40mm) to make it active to assist the air flow because the hot exhausted air needs to make that 90-degree turn and I am afraid hot air will not make that turn fast enough and will cause hot air being backlogged
b. using a larger size 'shroud' so that the hot exhausting air has more maneuver space just outside the slot

(It is lunch time for me and I will return to this thread later)
Thanks for the input, I think you're right. Active would work far better or I need to think the shroud bigger. Thanks again -

Quote:
Originally Posted by Morizuno View Post
just put a box around your GPU so none of the air can go into the case and the have a 80mm or so fan taped onto the pci slots inside the box so it can exhaust out of the case
Thanks for your contribution, but, I'm not worried about the air in the case so much as the air expelled out the back of my video card.
    
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post #12 of 22
Quote:
Originally Posted by GanjaSMK View Post
Hah... I'm not looking to lower temps so much even though I did mention it. I can physically feel the higher temperatures around my upper body - pretty annoying.

Bah.. I'll just make one and see what happens. The case is about desk level (on a separate table next to my desk) and to the right of it is the door into this room - so my thoughts are that if I direct the air that way, it has a better chance of getting pushed out the door instead of dumping fully into the room!
I can understand if you want to do this as a project, but for simply cooling yourself (or your computer) this is pointless. If you want more cooling in your room you would be better off just buying a desk fan or room fan.
post #13 of 22
Thread Starter 
Quote:
Originally Posted by eggs2see View Post
I can understand if you want to do this as a project, but for simply cooling yourself (or your computer) this is pointless. If you want more cooling in your room you would be better off just buying a desk fan or room fan.
Well, thanks for the tip. I already have one fan on my desk and other fans can be placed in the room but generally do not expel the hot air out of the room.

Beyond that, this room has it's window wall facing the mid-day to setting of the sun which only makes it hotter as the days progress.

Anyways - whatever. It's just a matter of warm air in general in a room where there are multiple computers and devices running. It's just that when the 465 was put in, it was noticeably warmer, even in winter when ambient temperatures were cooler.
    
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post #14 of 22

Another idea that you can consider or build upon on is:-

Use an USB-powered fan (off from a motherboard USB port at case rear) to provide air flow across the exhaust slot of a graphics card.
Pic below shows the idea graphically.

USB fan:


post #15 of 22
Quote:
Originally Posted by windfire View Post
Another idea that you can consider or build upon on is:-

Use an USB-powered fan (off from a motherboard USB port at case rear) to provide air flow across the exhaust slot of a graphics card.
Pic below shows the idea graphically.

USB fan: Amazon.com: New USB Mobile Port Mini Fan For PC Mac Laptop Notebook: Electronics
This. Good idea lol. I am having a similar problem with my graphics card cooler now that I want to buy a new case. I am looking to get the Silverstone Raven 02 Black Evolution, but I have a ASUS Direct CU2 Cooler on my card, which exhausts 2/3 of the air back into the case and 1/3 that actually exhausts to the back. So basically, the hot air will exhaust from my card, then the Air Penetrator fans will blow the hot air back upwards to be taken into the GPU and CPU cooler. I don't know what I can do with the card cooler in a case that has the motherboard angled at 90-degrees.
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post #16 of 22
Quote:
Originally Posted by frannyvox View Post
This. Good idea lol. I am having a similar problem with my graphics card cooler now that I want to buy a new case. I am looking to get the Silverstone Raven 02 Black Evolution, but I have a ASUS Direct CU2 Cooler on my card, which exhausts 2/3 of the air back into the case and 1/3 that actually exhausts to the back. So basically, the hot air will exhaust from my card, then the Air Penetrator fans will blow the hot air back upwards to be taken into the GPU and CPU cooler. I don't know what I can do with the card cooler in a case that has the motherboard angled at 90-degrees.
I totally understand the thermal challenge of putting a card with internal-heat-dump design (eg DirectCU II) in a case like the Raven series. See my assessment in post #7 here:
http://www.overclock.net/computer-ca...ng-issues.html

But this problem can be solved decently for a single graphics card setup. Read through the above thread carefully. Note my solution described in post #11 (and #13) regarding the fan extractor and 'elbow'.
As you do not have other cards (dedicated Physx card or sound card), you just ignore that part of the solution described in the thread above.

For a single HD6870 Direct CU, you place it in the 2nd (blue) PCIex16 slot of your motherboard MSI 890GXM-G65. And place the Deep Cool XFan 5 to the 1st expansion slot (ie topmost slot). Remember to use the 'elbow' (stiff paper or plastic).

However, I see you indicate in your sig rig that you plan to get a 2nd HD6870 to do CF. For such dual-card setup, I have to suggest you to choose another case (eg HAF 932).

And, an apology to OP for getting OT.
If you wish to continue, start your own thread to explore this matter further.
post #17 of 22
Yeah sure, I wasn't expecting a reply, but thank you very much. I have created my won thread one a few days ago, but no luck yet. To the OP, try the USB Fan thing, it should just redirect the air into the other direction so it won't get ventilated back into the side panel.
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post #18 of 22
Quote:
Originally Posted by eggs2see View Post
I can understand if you want to do this as a project, but for simply cooling yourself (or your computer) this is pointless. If you want more cooling in your room you would be better off just buying a desk fan or room fan.
Fans don't cool a room ... just so you know

Well, I take it back ... if you have one in a window that's open to cooler air outside and you draw that cool air in using the fan, you can. But a ceiling fan, or a fan sitting on your desk ... it doesn't cool the room. If you make it blow on you, it evaporates the moisture on your skin, which cools you slightly ...

Ganja, I agree w/Windfire (nothing new there) insofar as I think it needs to be 'active' otherwise I think it'll create a backup of the air coming out of the card and make it run hotter.
    
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post #19 of 22
i took my reference 460 apart and cut a about a 100mm hole in the plastic right below the heatsink and mounted a slim fan off a 9500gt made a wire that plugged into my 12 volt rail it didnt really help getting hot air out of the case but it dropped my card temp buy about 8-10.c. i reapplied thermal paste at the same time,any fan would work but should be at least 100-120mm,also good buy warranty
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post #20 of 22
Thread Starter 
Quote:
Originally Posted by windfire View Post
Another idea that you can consider or build upon on is:-

Use an USB-powered fan (off from a motherboard USB port at case rear) to provide air flow across the exhaust slot of a graphics card.
Pic below shows the idea graphically.

USB fan: Amazon.com: New USB Mobile Port Mini Fan For PC Mac Laptop Notebook: Electronics
That looks promising. I think I'll probably go with something like this. I'll just have to see if I can find a fan with a cage around it. Awesome info and great ideas, many thanks.

Quote:
Originally Posted by brettjv View Post
Fans don't cool a room ... just so you know

Well, I take it back ... if you have one in a window that's open to cooler air outside and you draw that cool air in using the fan, you can. But a ceiling fan, or a fan sitting on your desk ... it doesn't cool the room. If you make it blow on you, it evaporates the moisture on your skin, which cools you slightly ...

Ganja, I agree w/Windfire (nothing new there) insofar as I think it needs to be 'active' otherwise I think it'll create a backup of the air coming out of the card and make it run hotter.
Yep, I do too. Solid advice. Now just to find the right fan!

Thanks guys!
    
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