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MSI 290 CF -> EVGA 780 SLI
- Thread starter BaDBoY_uK
- Start date
Soldato
- Joined
- 6 Feb 2010
- Posts
- 14,582
I'm out of idea as well...I think your suggestion sounds viable.Two suggestions.
1) Stick a fan on the edge of the backplate and have it pushing the hot air the gpu's kick out down towards your HDD's. Hopefully then your bottom 120MM intake will help naturally push the air towards the vents above your gpu's. Positive pressure in your case will help this.
2) Stick a fan right on top of both gpu's so it sucks the heat out of both and moves it further away from the gpu's. The problem will be gpu 1 is sucking in gpu 2's heat. This may solve that, or at least lessen the effect. If that does not work, turn the fan over and see if that helps.
That's all ive got for now. Over to Marine and Shankly.
One thing I did consider is that to add to you suggestion, rather than "hoping" the "botton 120MM intake will help naturally push the air towards the vents", could considering getting one of these or similar to help with pushing more heat out through the vent:
http://store.antec.com/Product/cooling-cooling_fan/super-cyclone-blower/0-761345-77194-8.aspx
(might need to blu-tac it to secure it on the vent)
Caporegime
Good shout Marine. He could also use one of these, or something similar to help force the warm airflow to those vents. He could put it near the front fan, but further down the bottom. Or he could maybe ghetto another 120mm fan there.
http://store.antec.com/Product/cooling-cooling_fan/spot-cool/0-761345-75018-9.aspx
Soldato
Nope there different see my image. Edit see he posted wrong image.
I tried all kinds Bad boy from ghetto mod fans to side etc nothing worked till I moved them apart. The bottom card is pushing hot air out and the top card is sucking it all in reason for high temps. They isn't enough space to get the hot air from bottom GPU away fast enough.
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Soldato
This what mine was like
Before
Fan mod - didn't do jack for me tried out and in take.
This was the only choice I had to reduce the temps and works superb, both cards now run temp wise like single GPUs.
Temps before and after
Before
Heaven 4.0 - 94c
After Heaven 4.0 - 70c
Before
Fan mod - didn't do jack for me tried out and in take.
This was the only choice I had to reduce the temps and works superb, both cards now run temp wise like single GPUs.
Temps before and after
Before
Heaven 4.0 - 94c
After Heaven 4.0 - 70c
Caporegime
Shanks i notice with your fan placement its not sitting on top of the gpu core. In fact it appears to be sitting on top of vrm 2, which is the coolest vrm on the card. 
Nonetheless i doubt it would've made too much difference. Space is the best healer without doubt.
Nonetheless i doubt it would've made too much difference. Space is the best healer without doubt.
Soldato
Shanks i notice with your fan placement its not sitting on top of the gpu core. In fact it appears to be sitting on top of vrm 2, which is the coolest vrm on the card.
Nonetheless i doubt it would've made too much difference. Space is the best healer without doubt.
I did practice with moving along the GPU's
each run of heaven 4.0 OCUK settings but nothing stopped the top card hitting 94c this even with side panel off.
Caporegime
You could always lower the voltage a bit. Or you could set the throttle temp a bit lower for the top card, to keep it in check. I find throttling does not reduce the clocks too badly as long as its not blatantly overheating.
Caporegime
CCC >> Overdrive.
Sometimes i lower mine if the room is hot and the game im playing has plenty o fps. You get as much performance as you need but can make sure the gpu stays at a certain temp. Very handy.
Soldato
It's not there on msi cards. Think just reference
Caporegime
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Soldato
Really, Are you sure?
...pic...
Does this work now? Last time I tried it my cards hit the target temp and throttled with the fan speed nowhere near the limit I set.
Caporegime
Yeah it didn't work for me either back then. Truth be told im not sure, because i use a custom fan profile but the target throttle temp works as i use it sometimes. I will try it out and report back.
Caporegime
With summer approaching, I feel we will see a few more of these threads. If you can water cool next month, do that Badboy and do what you can to keep the cards cool till then.
Soldato
Really, Are you sure?
snip
Yeah its not there on these cards, I thought just Ref cards have this?
Caporegime
Good info. Well there goes my suggestion then.