Gtx 1070 Temperature Goes after adding another GPU, is it safe for 24/7?

[Honey]

hi,
dont know its right place to ask, i appolgize if its not right place, i request them to transfer thread to right place,
using MSI Gaming X Gtx 1070, temp was 82c and was able to get 430-445sols, but after i added zotac gtx 1060,
the gtx 1070 temp goes up dont know because of it or not, temp goes upto 85c (and gtx 1060 temp remain same as 78c)
is it safe for mininng?
how can i decrease temperature without downclocking?

 

[Toothless]

Turn up the fans? No reason to dabble into new things you lack the knowledge to keep it from dying quickly.

 

[micropage7]

it the second card covers the first card you gonna have the temp get higher
thats ok, just dont forget to improve your airflow

at least it would help the hot air out from the case

 

[EarthDog]

Think about it....

What does hot air do? The answer, rise. What is above your new card? The other.

85C is fine or turn the fan up.

 

[Tallencor]

Had the same issue with my 480 crossfire so I removed the heatsinks and used thermal gizzly liquid metal and it reduced my thermals by 8c idle and 20c gaming load.
Keeping in mind I don't 24/7 max clock so I can't 100% recommend this method as it requires certain other things to be in place like heatsink metal type and liquid metal volumes to be correct. Definitely do research first.
What works for some may not work for others.

 

[trog100]

i bet honey already has his fans flat out.. he he..

trog

 

[Honey]

i bet honey already has his fans flat out.. he he..

trog

Yea xD, i need think i need open case, will buy it soon. Btw is 85c safe for 24/7?

 

[EarthDog]

For the X time............... YES!!!!!!!!!!!!!!!!!!!!!!!

 

[trog100]

try lowering the max power setting on your cards.. try 70% see how much your sol rates goes down.. if you can use say 80 power & only lose 5% output it helps with any heat problems.. find a setting you like.. your cards will boost less if they are too hot.. i just dont like fans running flat out 24/7..

you could try taking your case side off.. see if that makes any difference..

trog

 

[Honey]

i bet honey already has his fans flat out.. he he..

trog

Yea xD, i need think i need open case, will buy it soon. Btw is 85c safe for 24/7?

 

[Zyll Goliat]

Yea xD, i need think i need open case, will buy it soon. Btw is 85c safe for 24/7?

It´s different when ppl. use GPU for gaming and when temps jumps on 85c-90c for a few min then get lower due some intensive gaming for a of few hours,in that case I´ll say it´s OK but in your case when you pushing your GPU to work 24/7 all day&every day on temps that are constant and reaching 85c or higher that will eventually degrade your GPU or memory(GPU mem) for sure maybe even other components in that RIG can suffer also......

 

[Honey]

Finally temp went down to 69-71c
Nothing is better than open xD
Will make miningg case myself.

 

[brandonwh64]

Same issue with 6950's unlocked. the top card was always the hottest

 

[toilet pepper]

I'm on the same boat as you. I even did some ghetto mods to help the temps.

Guess what? It didn't work. The top card still stays around 82C with the fans ramping up to around 90%-100% just to keep the temps. And this is with setting the temp and power limit in Afterburner to around 70C.

So what I did was used a riser ran it and the power connectors out of a PCIE slot at the back of the case. I don't see me gaming on 2 GTX 1070s anyways. Plus, I can unplug the other card easily before doing a long gaming session anytime.

 

[Vayra86]

The higher temp is also just a higher core temp because the top card is pushing harder than it does as single gpu. No amount of airflow can mitigate this.

 

[trog100]

i have been running a pair of 980 TI cards for some time.. at default fan profiles the top card ran up to 20 C hotter than the bottom card..

i ran two different fan profiles.. over cooling the bottom card at 55 C gave me 70C on the top card.. it wasnt just core temps.. with a 980 TI the entire card heats up.. meaning the top card is pulling pre heated air off the backplate of the bottom card.. i also used case side fans..

interestingly i now run a pair of 1070 cards in the same situation.. these have no heat problems at all.. much less power being used much less heat being generated and the entire card set up runs much cooler..

trog

 

[EarthDog]

The higher temp is also just a higher core temp because the top card is pushing harder than it does as single gpu. No amount of airflow can mitigate this.

Why does the top card work harder with two gpus as opposed to solo?

 

[Vayra86]

Why does the top card work harder with two gpus as opposed to solo?

The top card is the master card that combines the resulting frames from the bottom card and sends it through to output. The pipeline gets extended on the master card and not on the slave card. This is also where your increased latency comes from.

 

[EarthDog]

Weird... 100% use is 100% use. Its doing something different, not more, net. Hear me out... instead of dedicating 100% of its effort to put fps out, some of that effort is funneled towards stiching them together.

Heat rising is, by far, the main culprit of higher temps.

Pretty sure if the 'master' card can be the bottom card, or in isolated loops, temps would remain the same.

 

[fullinfusion]

Finally temp went down to 69-71c
Nothing is better than open xD
Will make miningg case myself.

Hey @Honey open case mining Vega for a month..

Solution

 

[Vayra86]

Weird... 100% use is 100% use. Its doing something different, not more, net. Hear me out... instead of dedicating 100% of its effort to put fps out, some of that effort is funneled towards stiching them together.

Heat rising is, by far, the main culprit of higher temps.

Pretty sure if the 'master' card can be the bottom card, or in isolated loops, temps would remain the same.

Well you say that, and at the same time, depending on the game and engine, 100% utilization makes for a hotter card in certain titles; I can imagine a lot more going across VRAM as well for example, with SLI.

Do agree its 100% true the heat rise is the main contributor. Its easy to test, put the case open on its side and run game. I would, if I had another 1080

 

[Ruru]

I had Gigabyte GTX 970 G1 Gaming at first, then I added an EVGA GTX 970 blower-cooler model for SLI. Temps got up just a few degrees, but what helped most, was to fully clean the coolers of both cards.

 

[trog100]

Weird... 100% use is 100% use. Its doing something different, not more, net. Hear me out... instead of dedicating 100% of its effort to put fps out, some of that effort is funneled towards stiching them together.

Heat rising is, by far, the main culprit of higher temps.

Pretty sure if the 'master' card can be the bottom card, or in isolated loops, temps would remain the same.

heat rising does play a part.. but with my 8 card mining rig.. 8 cards side by side with a nice 3 inch gap between each card starting from left to right you can detect a cumulative heat increase from card to card as you move down the line. putting your hand between each card make it obvious why..

which is why you see a row of fans mounted in front and sometimes at the back as well on mining rigs.. these move air between the cards and cools the area each card is picking up its air from..

without the row of fans working you really can feel the cumulative heat effect as you move down the row of cards from left to right..

so yep heat rising does play a part but i think its more about one card pre heating the air that the other cards fans pick up..

the only way to help is to have fans blowing between each card.. with my desk top rig a case side fan (or two) does the job nicely..

its a shame the fad for see through windows has stopped case side fans being popular.. they are essential for multi card set ups..

trog

 

[EarthDog]

Wow... many words for something i already said.

That was the thought there trog...heat rises to the top card where it takes in warmer air.

Well you say that, and at the same time, depending on the game and engine, 100% utilization makes for a hotter card in certain titles; I can imagine a lot more going across VRAM as well for example, with SLI.

Do agree its 100% true the heat rise is the main contributor. Its easy to test, put the case open on its side and run game. I would, if I had another 1080

vram is mirrored on each card. The master has nothing to do with that.

I dont buy this master is hotter stuff. Or if it does, its nearly negligible..1-2c..

 

[trog100]

Wow... many words for something i already said.

That was the thought there trog...heat rises to the top card where it takes in warmer air.

vram is mirrored on each card. The master has nothing to do with that.

I dont buy this master is hotter stuff. Or if it does, its nearly negligible..1-2c..

i dont use anymore words than i have to to fully explain what i need to.. i also said something a little different than what you said.. i said (and explained) that it was more about one card picking up pre-heated air from another card than heat rises..

if cards had the fans blowing top to bottom the bottom card in an sli set up would be the one that runs hotter..

heat (convection) may well rise on its own but it can be blown downwards or sidewards it aint just limited to going upwards.. he he

trog