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Topic: Nvidia Safe Temps? (Read 219 times)

member
Activity: 154
Merit: 10
May 02, 2018, 05:35:19 PM
#13
My 1080tis are runing at this moment at 70c since outside temperature is really high and i cant fix that anyway,but then again i am runing them at 90% tdp so i have room to control it.Ussualy i start lowering tdp when temps gets arround 75c-no special reason for it except its my comfort zone
legendary
Activity: 2436
Merit: 6643
be constructive or S.T.F.U
May 02, 2018, 03:48:18 PM
#12
The thermal cutoff is over 90c. Not sure why people say they throttle that low when they dont.


Every electronic chip that's ever made is more efficient and has a better chances surviving the long run at lower temps.

there is no exact figure that even the manufacturer themselves can tell you. simply because the usage / airflow / up time is always different.



hero member
Activity: 1036
Merit: 606
May 02, 2018, 03:41:28 PM
#11

 Once the card reaches around 83°C, the clocks level out at around 1705 MHz, which is still 100 MHz higher than the base clock.

^^^^still higher than base clock, and those few mhz make basically no difference in the real world.

Here is one of my GTX 1070 machines as an example:

ETH:

GPU0 26.668 Mh/s - GPU0 t=82C fan=96%
GPU1 26.694 Mh/s - GPU1 t=74C fan=81%
GPU2 26.685 Mh/s - GPU2 t=69C fan=64%
GPU3 26.673 Mh/s - GPU3 t=82C fan=96%
GPU4 26.685 Mh/s - GPU4 t=81C fan=93%

All cards are within 0.03Mh or so......does that really look like a bunch of thermal throttling? I can post hundreds of other miner status lists showing the same thing.


As noted in the second part of the review, modern Nvidia cards begin to progressively throttle in 13 MHz increments as low 40C. Once the temperature exceeds 82C, there was a drop to the base clock. Which means modern cards DO in fact progressively throttle the core frequency and voltage according to the temperature, not just at the thermal limit cutoff.

Quote
We can see a linear trend that has clocks go down as the temperature increases, in steps of 13 MHz, which is the clock generator's granularity. Once the card exceeds 82°C (I had to stop the fan manually to do that), the card will drop all the way down to its base clock, but will never go below that guaranteed minimum (until 95°C where thermal trip will kick in).

This means that for the first time in GPU history, lower temperatures directly translate into more performance - at any temperature point and not only in the high 80s. I just hope that this will not tempt custom board manufacturers to go for ultra-low temperatures while ignoring fan noise.

Ethash is a memory dependent algorithm which is not affected as much by by a lower core clock. Especially given that for mining ETH, you should UNDERCLOCK the core to LESS than the default clock. For other core intensive algorithms such as Equihash, where you need to INCREASE the core overclock, the thermal throttling would affect the hash rate much more.
full member
Activity: 1148
Merit: 132
May 02, 2018, 03:36:07 PM
#10

 Once the card reaches around 83°C, the clocks level out at around 1705 MHz, which is still 100 MHz higher than the base clock.

^^^^still higher than base clock, and those few mhz make basically no difference in the real world.

Here is one of my GTX 1070 machines as an example:

ETH:

GPU0 26.668 Mh/s - GPU0 t=82C fan=96%
GPU1 26.694 Mh/s - GPU1 t=74C fan=81%
GPU2 26.685 Mh/s - GPU2 t=69C fan=64%
GPU3 26.673 Mh/s - GPU3 t=82C fan=96%
GPU4 26.685 Mh/s - GPU4 t=81C fan=93%

All cards are within 0.03Mh or so......does that really look like a bunch of thermal throttling? I can post hundreds of other miner status lists showing the same thing.





most nivida users run at 75% or 80 powe limit tho
running at 100 seems to gain nothing but extra heat,

at 75 power limit you will rarely go past 75 deegree temps and still
hit 90 percent or higer on expected hash rates
hero member
Activity: 756
Merit: 560
May 02, 2018, 03:21:04 PM
#9

 Once the card reaches around 83°C, the clocks level out at around 1705 MHz, which is still 100 MHz higher than the base clock.

^^^^still higher than base clock, and those few mhz make basically no difference in the real world.

Here is one of my GTX 1070 machines as an example:

ETH:

GPU0 26.668 Mh/s - GPU0 t=82C fan=96%
GPU1 26.694 Mh/s - GPU1 t=74C fan=81%
GPU2 26.685 Mh/s - GPU2 t=69C fan=64%
GPU3 26.673 Mh/s - GPU3 t=82C fan=96%
GPU4 26.685 Mh/s - GPU4 t=81C fan=93%

All cards are within 0.03Mh or so......does that really look like a bunch of thermal throttling? I can post hundreds of other miner status lists showing the same thing.




hero member
Activity: 1148
Merit: 523
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May 02, 2018, 02:44:27 PM
#8
What do you guys run you cards at in the summer?  What is safe 24/7?  Mine ran nice and cool in the winter but it's warming up now.  Have too many cards for AC, so I use exchange with outside air.  For 1070ti's and 1080ti's


Nvidia cards mostly getting high temperature than the AMD cards. Maximum you can allow the Nvidia cards to touch the 79 degree temperature mate not more than that. If you air conditioner in your mining rig set up room then it is much better to maintain the temperature.

I have each 10 cards rig in 3 numbers but they are not going big temperature as you think. I have one 1.5 ton AC alone in my room. Still no issues for me mate.
full member
Activity: 434
Merit: 246
May 02, 2018, 02:26:54 PM
#7
Each model has its own limits. Different cards are designed with different purposes in mind. Because of that, you should check the temperature limits of your model.
Let me give you an example. My Titan X Pascal NVidia GPU can run in the range between 82-87 degrees Centigrade all around the clock.
That is not so say that another model, say, NVidia 1080 Ti can safely run in the same temperature range.
So make sure you know your Graphic card performance well.
hero member
Activity: 1036
Merit: 606
hero member
Activity: 756
Merit: 560
May 02, 2018, 01:59:38 PM
#5
The thermal cutoff is over 90c. Not sure why people say they throttle that low when they dont.
legendary
Activity: 2436
Merit: 6643
be constructive or S.T.F.U
May 02, 2018, 01:29:54 PM
#4
What do you guys run you cards at in the summer?  What is safe 24/7?  Mine ran nice and cool in the winter but it's warming up now.  Have too many cards for AC, so I use exchange with outside air.  For 1070ti's and 1080ti's


anything below 70 is fine , the less the better. ideal is 60.

for me i use central ac units , got very cheap power rate so i don't care.
full member
Activity: 1148
Merit: 132
May 02, 2018, 01:28:51 PM
#3
70s or 75 is optimal , lower the better
hero member
Activity: 1036
Merit: 606
May 02, 2018, 01:28:18 PM
#2
Generally you can run cards at <75C before they will begin to throttle. As long as you have good airflow, it shouldn't be a problem to stay below that.
member
Activity: 168
Merit: 39
May 02, 2018, 01:21:21 PM
#1
What do you guys run you cards at in the summer?  What is safe 24/7?  Mine ran nice and cool in the winter but it's warming up now.  Have too many cards for AC, so I use exchange with outside air.  For 1070ti's and 1080ti's
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