Overclocking Dual 1080ti's

[KyleKyleKyle]

ok so I got a second 1080ti. Tomorrow the temp is going to be -2 Fahrenheit for a high temp. Is it safe to set my computer in the window? I want to see how well it can OC and what to expect lol. Also what are the best settings to get the most out of SLI 1080ti? I have a HB Bridge as well.

[Unimaginative Name]

Going from hot (or warm) to cold can cause condensation. If you leave it inside so it only sucks in freezing air you should be fine, but don't blame me if anything goes wrong. 

[Jurrunio]

you can blow cold air outside into the case for as much cooling as you want, just make sure water dont get in.

 

Best settings depends on individual card's overclocking rusults. Not sure if SLI runs the card at the same clock speed, but still, test individual card's maximum overclock before going SLI.

[Princess Luna]

Just out of wonder, what display are you rocking?

[Jurrunio]

1 minute ago, Unimaginative Name said:

Going from hot (or warm) to cold can cause condensation

It's the opposite. When cold items get into warm air, water condense.

[knightslugger]

1 minute ago, Jurrunio said:

It's the opposite. When cold items get into warm air, water condense.

...on the colder object

[KyleKyleKyle]

2 minutes ago, Princess Cadence said:

Just out of wonder, what display are you rocking?

a 55 inch 4k Samsung TV

[Princess Luna]

Just now, KyleKyleKyle said:

a 55 inch 4k Samsung TV

Must be a lovely couch gaming [:

 

I can't see a sli 1080 ti not running all games on ultra at 60fps not sure why bother overclocking straight away...

[Unimaginative Name]

Just now, Jurrunio said:

It's the opposite. When cold items get into warm air, water condense.

http://www.overclockers.com/forums/showthread.php/43713-Condensation-When-it-will-and-won-t-happen

No, cold air holds less water than warm air, so when a warm object enters cold air water will condense on the object. When cold air enters a warm object, condensation is unlikely. 

Just now, Princess Cadence said:

Must be a lovely couch gaming [:

 

I can't see a sli 1080 ti not running all games on ultra at 60fps not sure why bother overclocking straight away...

I think its more of the -2 degree thought experiment. 

[Jurrunio]

 

1 minute ago, Unimaginative Name said:

http://www.overclockers.com/forums/showthread.php/43713-Condensation-When-it-will-and-won-t-happen

No, cold air holds less water than warm air, so when a warm object enters cold air water will condense on the object. When cold air enters a warm object, condensation is unlikely. 

Quote

Case 1: Cold air, cold surface.
Condensation is rather unlikely here, since cold air doesn't hold very much water. The only way it might happen is if the surface is colder than the air and the air is at high relative humidity.

Case 2: Warm air, warm surface.
Condensation is again unlikely, since a warm surface typically does not cause condensation.

Case 3: Cold air, warm surface.
Condensation will not happen. Cold air doesn't hold near as much air as warm air. When the air hits the surface, its temperature increases and so does its carrying capacity, meaning that it could potentially have the opposite effect. If the surface is wet, it will become dry in this scenario. A computer in a refrigerator would have this situation.

Case 4: Warm air, cold surface.
Condensation is very likely here. As mentioned above, warm air holds more water than cold air. When it hits the cold surface, its temperature decreases, as does its carrying capacity. If the change is great enough, condensation will occur. A computer with a peltier unit would have this situation.

3

Are you even reading what I'm reading? OP is putting a computer in warm conditions (assuming the room is warmer than outside) in cold air, so it matches case 3.

 

Besides, how would you explain condensation on a can of ice cold soda? Shouldnt it be dry according to your logic?

[Unimaginative Name]

1 minute ago, Jurrunio said:

 

Are you even reading what I'm reading? OP is putting a computer in warm conditions (assuming the room is warmer than outside) in cold air, so it matches case 3.

 

Besides, how would you explain condensation on a can of ice cold soda? Shouldnt it be dry according to your logic?

Yeah, I read it over again and realized I was wrong. 

[Synawke]

3 hours ago, KyleKyleKyle said:

ok so I got a second 1080ti. Tomorrow the temp is going to be -2 Fahrenheit for a high temp. Is it safe to set my computer in the window? I want to see how well it can OC and what to expect lol. Also what are the best settings to get the most out of SLI 1080ti? I have a HB Bridge as well.

its not temps that holds the 1080ti back. dont try it. you wont get anywhere more than you already have with an OC

[knightslugger]

6 minutes ago, Synawke said:

its not temps that holds the 1080ti back. dont try it. you wont get anywhere more than you already have with an OC

absolutely 100% not true. Temps are EVERYTHING on Pascal.

 

well mostly everything... BUT THEY'RE IMPORTANT NONE THE LESS!

 

If you can keep the core temp below 40*C, even 35*C, your boost 3.0 will hold HIGHER CLOCKS.

[Mick Naughty]

Assuming they will go low enough. I doubt it would be worth it. Oc only yields so many frames. 5 frames isn’t worth the effort to even lift my pc up. 

[Synawke]

19 hours ago, knightslugger said:

absolutely 100% not true. Temps are EVERYTHING on Pascal.

 

well mostly everything... BUT THEY'RE IMPORTANT NONE THE LESS!

 

If you can keep the core temp below 40*C, even 35*C, your boost 3.0 will hold HIGHER CLOCKS.

the 1080ti is limited by the architecture. nvidia literally made it so it wont go past certain points. regardless of the temps. you can look up results. nobody can get the 1080ti to OC much