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GTX 1080 ti to hot!

snips86x said:
yeah, I noticed that the top fans were pulling air in. Since hot air rises, you need them to vent. You'd be surprised at the difference it can make.

Given the AIO is on the front, you wouldn't really want it pushing air out.

Front = In
Top = Out
Rear = Out

That'll aid positive pressure.
Click to expand...

Two outs and one in will have negative pressure. The extra intake air will be pulled in through all the nucks and crannies and PCI blank slots etc.

The fact air rises has virtual zero effect, convection on these scales is minimal and slow. If you shut off all your fans and measure the amount of air rising out of the case by convection alone it would be totally eclipsed many times over by a single fan at minimum RPM.

I'd wager that if you put your exhausts at the front and bottom and your intakes at the top and rear it would have very little effect to the overall temperature once the fans are running. A degree maybe 2 tops but I even doubt that.

The most important things about case airflow in order of priority is:
1. Air circulation volume - moving air, in through and out of the case - this directly controls the ambient case temp.
2. Directional flow. ie, intakes on one side, exhaust on the other.
3. Directed supply of cool air for internal heatsinks - makes sure there are no hot spots around heatsinks due to dead zones in airflow.
4. Positive pressure to prevent dust build up due to secondary inhalation.

CPU AIO will only raise the case ambient air temp as an intake by a degree or two, even under load and can result in better cooling overall due to increased directed airflow.

I sincerely doubt this is a case ambient temp issue. As easy test would be to put a temp probe or kitchen thermometer inside the case for an hour. Anything up to 40*C is fine, but 30*C or under ideal.
 
PaulCa said:
Two outs and one in will have negative pressure. The extra intake air will be pulled in through all the nucks and crannies and PCI blank slots etc.

The fact air rises has virtual zero effect, convection on these scales is minimal and slow. If you shut off all your fans and measure the amount of air rising out of the case by convection alone it would be totally eclipsed many times over by a single fan at minimum RPM.

I'd wager that if you put your exhausts at the front and bottom and your intakes at the top and rear it would have very little effect to the overall temperature once the fans are running. A degree maybe 2 tops but I even doubt that.

The most important things about case airflow in order of priority is:
1. Air circulation volume - moving air, in through and out of the case - this directly controls the ambient case temp.
2. Directional flow. ie, intakes on one side, exhaust on the other.
3. Directed supply of cool air for internal heatsinks - makes sure there are no hot spots around heatsinks due to dead zones in airflow.
4. Positive pressure to prevent dust build up due to secondary inhalation.

CPU AIO will only raise the case ambient air temp as an intake by a degree or two, even under load and can result in better cooling overall due to increased directed airflow.

I sincerely doubt this is a case ambient temp issue. As easy test would be to put a temp probe or kitchen thermometer inside the case for an hour. Anything up to 40*C is fine, but 30*C or under ideal.
Click to expand...
Thanks for the info. I'll keep that in mind and will try it out. Today I received 2x 140mm fans and swapped AOI fans so they push the air out not in so.... I now have 2x140mm fans + 1x 120mm fan at the front intake 2x140mm fans are blowing cold air on gpu and 1x 120mm puling air in on AOI and one 120mm fan puling air out at the back haven't tested the temps yet will do it later today or when I get home
 
janis strods said:
hello. just got my EVGA gtx 1080ti ftw3 and after 20-30 min of gaiming the temp sits around 84 degrees it seems a bit to hot! its not overclocked not planing to do that even in idle its to hot and room temp is around 18-20 + its a fresh instal windows 10 new drivers!


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Click to expand...

Your card could be working on silent mode. You need to install MSI AB and set up a custom curve.
Also can you sheck if there is a newer bios for your GPU? EVGA should have supplied you with a tool to check this, like Aorus/Gigabyte does.

And as PaulCa said above you need a lot of positive airflow. Exhaust fans be damned these days if your case it not tightly sealed and has ventilation it will push the warm air out.
 
A
Panos said:
Your card could be working on silent mode. You need to install MSI AB and set up a custom curve.
Also can you sheck if there is a newer bios for your GPU? EVGA should have supplied you with a tool to check this, like Aorus/Gigabyte does.

And as PaulCa said above you need a lot of positive airflow. Exhaust fans be damned these days if your case it not tightly sealed and has ventilation it will push the warm air out.
Click to expand...
Bios? Where do I check that?
 
Your FTW3 certainly runs hotter than mine ;)
After about an hour of gaming in this weather mine gets to about 67C, that's with near 99% gpu usage .
Once you've got your case fans sorted.... fully power off the computer and switch it off from the wall.
The FTW3, has two bios's available (master & slave), and you can switch between these using the teeny tiny microswitch located on the side of the gpu. With the pc totally powered down, switch the bios microswitch to its secondary position which will use the slave bios.

This bios will use a much better fan curve across all 3 fans and also allow a higher power limit if you want to overclock.

If you use Evga Precision X software, just bare in mind it is not the most stable piece of software, and in quite a few cases has a negative affect on performance.
Msi Afterburner is a much better and far more stable piece of software. But it doesn't have as many Evga specific options like Precision.

Mick
 
FlyingFish said:
Your FTW3 certainly runs hotter than mine ;)
After about an hour of gaming in this weather mine gets to about 67C, that's with near 99% gpu usage .
Once you've got your case fans sorted.... fully power off the computer and switch it off from the wall.
The FTW3, has two bios's available (master & slave), and you can switch between these using the teeny tiny microswitch located on the side of the gpu. With the pc totally powered down, switch the bios microswitch to its secondary position which will use the slave bios.

This bios will use a much better fan curve across all 3 fans and also allow a higher power limit if you want to overclock.

If you use Evga Precision X software, just bare in mind it is not the most stable piece of software, and in quite a few cases has a negative affect on performance.
Msi Afterburner is a much better and far more stable piece of software. But it doesn't have as many Evga specific options like Precision.

Mick
Click to expand...
cool thanks. can u send me a pic with ur fan curve? would help me pout a lot ;) cant open the pic u already put in
 
Have you checked what the fans on the card are actually doing?

MSI Afterburner graph window will show you the fan tactometer and the commanded fan percentage.
 
PaulCa said:
Have you checked what the fans on the card are actually doing?

MSI Afterburner graph window will show you the fan tactometer and the commanded fan percentage.
Click to expand...

True but only of one of the three fans. That's why you need the slave bios to run a healthier fan curve for the other two.

Only Precision XOC can give you total control of the FRW3 GPU, BUT it's horrendously unstable software IMO. Best way is to work without it.

Mick
 
FlyingFish said:
True but only of one of the three fans. That's why you need the slave bios to run a healthier fan curve for the other two.

Only Precision XOC can give you total control of the FRW3 GPU, BUT it's horrendously unstable software IMO. Best way is to work without it.

Mick
Click to expand...
msi i dont understand that well i might just stick with precision x
 
If Precision works for you then stick with it m8.
If I remember correctly my fan curve in afterburner is straight down the middle after 40C, so for example 50C=50% fan, 60C=60%fan 70C=70% fan etc.

I'll post a screen shot when I'm home later :)

Mick
 
8OTnuj1.jpg


Playing a bit of Assassins Creed Origins, the dips in gpu usage are from when I'm in the menu system, the rest in gameplay, 1440p & maxed out settings
 
Nothing special, slave/secondary bios selected on the card, Afterburner fan profile for No.1 fan. And hopefully decent case cooling ;)

This is a picture of my case setup, which is not too dissimilar from yours. The cpu AIO blows outwards, and the single front fan blows into the case.
Whats not shown on the picture is a single 120mm top fan blowing upwards, and more importantly another single 120mm fan attached to the clear side panel (not shown) which hoovers a massive amount of heat out of the case directly from the gpu.

0rmbXAg.jpg


Mick
 
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