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Almost got the twin frozr II 580 under control.

post #1 of 20
Thread Starter 
Hey guys,

Had a few posts trying to keep my Twin Frozr II 580 under control.

I have spend a while figuring out where most of the heat from the card goes to. I noticed like 80% of the heat goes out the back and the front of the card.

Here is what I did wrong with my airflow, the two front intake were blowing the hotair comming out the of the GPU back infront of the card intake. Slowly heating the air more and more.

Currently have 2x 140 MM as bottom and side intake, two front out, and 3 top out (including antec 620). Took of the back of my case to prevent heatbuild up between the cables. Basicly I have as much fresh air going towards the intake fans of the 580 and having all the remaining air sucked out.

Ran a furmark on default 1080p, getting 57C after like 8 mins. When running longer it seems to stabalize on 72C. I found that the way the card blows the hotair out the back it slightly angles towards the PSU, took out all the PCI brackets but still it gets trapped there.

So now im trying to look for solutions to keep the hot air build up above my PSU, also heating up the left 580 intake.

This isnt a picture of my case. In my case the PCI-E slot on the motherboard is down one so even less room between GPU and PSU. Also PCI brackets are removed from the back, my HDD and SSD are all the way in the bottom + my back panel is off. Also using a Antec 620 as back out. Red = hot out, blue in cool in. Also the arrows on the 580 show how the air leaves the card approximatly.

In the redcircle area is were my problem is. Seems to build up air there and no easy way to get it out efficienctly.

338

Was gonna try aim the side intake slightly towards to back to try and push the air out. Or might have a fan on the back of the case sucking it out. Dunno if any1 has any suggestions for me.
post #2 of 20
Reason #1 I got rid of my GTX580 Twin Frozr II... I hate all the heat being dumped in the case....
post #3 of 20
Thread Starter 
Ye true, gotta say though Fractal R3 is prolly worst case for this card.
post #4 of 20
Dat negative pressure... Why do you have the front fans as exhaust instead of intake? I had no problems with hot air buildup with 2x 6950 TFII's when I had them in R3. Of course it traps the air there as there isn't anything moving it towards the rear of the case as your front fans are exhaust.
e: yeah my fans were like this: Intake 2x front 1x bottom and exhaust 1x rear 1x top rearmost
post #5 of 20
Thread Starter 
Well as much as the Twin Frozr II is an external exhaust the shroud is quiet closed, most air I noticed is being pushed towards the front of the case. I felt the hot air being forced back infront of the GPU intake when I had 2x front intake. Guess the 10C lower tells the story for me. Now just gotta get the left intake sorted.
post #6 of 20
I can't see that having all the airflow coming from the bottom for you case being very efficient. Only because it's so close to the table probably 1/2 at most. Turbulence = less airflow

What I would do in your case is pick up a slot cooler for underneath the card and make your front fans blow in like they should.

http://www.xoxide.com/evercool-fox2.html

Just an idea!

This way you have straight airflow from front to back.

What are you temps on your card now and what were they?
Edited by Cape Cod - 12/29/11 at 5:13am
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post #7 of 20
Quote:
Originally Posted by Doubleome View Post

Well as much as the Twin Frozr II is an external exhaust the shroud is quiet closed, most air I noticed is being pushed towards the front of the case. I felt the hot air being forced back infront of the GPU intake when I had 2x front intake. Guess the 10C lower tells the story for me. Now just gotta get the left intake sorted.

I'm not sure if I understood that one the way you ment it, but twin frozr coolers do by no means exhaust a lot of air outside the case. They dump most of the air back in the case to all directions from between the heatsink and pcb. That air normally exits through the top of the case as the exhaust fans pull it up while the intake fans provide fresh air for the cooler. Sounds logical to me. Having a positive pressure (more intake than exhaust) would mean that air would be forced to escape through all the gaps and holes it finds, so that could help with the air pocket.

Are you sure the 10C lower temps aren't because the fan has to work harder to get enough air? You seem to have like 3x more exhaust than intake... And if by switching the fans you got 10c lower temps on gpu, it probably means that some temps got higher as nothing is free.
post #8 of 20
Something else I just notices it is that you could have the psu flipped over to help pull more air out of the case. As well as it will keep you psu cleaner not drawing air from outside the case.
Psu's don't get very hot unless there under a pretty good load and they exhaust out the back.

Question: what are you using for fan control on that card and what is your fan speeds under load.
Edited by Cape Cod - 12/29/11 at 5:40am
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post #9 of 20
Thread Starter 
From what I have been able to see the Twin Frozr II forced air both towards the front of the case and towards the back but not out the back. I have litteraly tried any possible fan setup, even any possible case orientation. Sofar having the air being pushed in the bottom/side and out the front mostly seems to keep it sub 80C. Nothing else has kept it sub 80C.

From what I can see now is the left GPU intake draws in its own hot air.


................................................

Update


Just now spiked up to 86C. Couldnt feel any unusually hot air going in the intake.


This is in Swtor, BC2, BF3, Minecraft even. Stable 70 on Furmark default 1080p.
Edited by Doubleome - 12/29/11 at 6:11am
post #10 of 20
You didn't answer any of the questions I asked.
I want to see if there is any other reason beside the airflow in your case for it to be running that hot.
Btw Max temps on them cards are 100+c << but should never get that high ever! lol
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