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Topic: What minimum fan speed do you set your GPU rigs to? (Read 1328 times)

legendary
Activity: 1498
Merit: 1030
Most of the cards in my riser rigs run at 60% OR LESS fan.
I think the lowest one right now is at 40%, but I'm still in the process of rebuilding my old "folding" rigs into riser rigs.

sr. member
Activity: 658
Merit: 253
Fan speed depends on which room is the farm, closed housing or open, if you have fresh air, air conditioning, the distance between the graphics cards, but in any case from 70 to 90% is acceptable, in this mode if you do Maintenance every 6 months, the fans of video cards long live.
full member
Activity: 630
Merit: 101
More power consumption. You can normally use 50%-80% fan when mining 24/7. It depends on your cooling setup as you don't need 100% if your ventilation is properly planned. Remember the GPU fan is designed for being in a closed case and most miners are using open air cases.
newbie
Activity: 10
Merit: 0
So ordering some spare fans for "just in case" would be an good option?
As I can see from Aliexpress, those are from 5-20€/piece.
full member
Activity: 588
Merit: 103
For people with only a few graphics cards (especially if they are not the same) it's not convenient to dive into a risky procedure of changing the fans. Also, they must have a stock of fans or wait a few weeks for Aliexpress to deliver new fans. They will loose too much time and money waiting. Personally, I prefer to stay on the safe side and keep everything running without problem as much is possible, even if I have to sacrifice a few percents of hash rate.
full member
Activity: 349
Merit: 184
I do not know who, what he says, but I think that fans are consumables, so you do not need to save cards.
Accordingly, everything is simple - we always put 100% cooler on video cards and forget about those thoughts!
Replace the cooler from aliexpress is very inexpensive and fast, in case of emergency you can fasten the usual 92x92 or 120x120 cooler on the cards, while waiting for the normal with ali. And if you are lucky and your coolers can be disassembled and not broken, then generally there are no problems, greased and drove on!
newbie
Activity: 10
Merit: 0
I have Asus GeForce GTX 1080 Ti Turbo GPU's, with auto-fan mining temperature is between 80-84°C, which looks way too high to me.
Putting fans to 100% gives temperature between 49-62°C, but I use NvEZOS as OS (ewbf miner) and don't see any option to lower the temperature with auto-fan (I guess that something about 70°C would be optimal).
Any thoughts?
In NvEZOS OS there is also Claymore miner, should I use it instead of ewbf?


legendary
Activity: 1498
Merit: 1030
I've heard many different opinions and the last was that you must keep the fans at 100% and this will extend the life span of the gpu's. I run my fans 70% and the temp is around 82c and you could not touch the cards.They're extremely hot. But i think my problem is not from fan adjustment instead of space ventilation. I have placed too many gpu's in one room and have no option to put some king of fan to get our the air. Do you think this temp can cause some damage to the cards - evga 1070 ti.
Cheers!

Most fans used in GPUs don't handle extended time at 100% - the BALL BEARING ones might last a while that way, but far too many GPU makers have moved to cheap sleeve bearing fans that won't last 6 months at 100% and might not last 6 months even at 80%.

Wear is NOT linear with speed, it's more of an exponential function - that last 20% generates MORE wear on the bearings AND SEALS than the first 80% in most cases.
Also, that last 20% generally only adds more like 10% or so to the airflow, normally not worth the wasted power much less the added wear.

CASE fans, especially non-PWM types and anything Rotron/Delta/YS Tech/NMB (couple more I'm forgetting at the moment) ARE normally designed to handle 100% fan speed for extended periods of time.


newbie
Activity: 210
Merit: 0
I run my fans at 80% to keep cards cool and gain more hashes. My cards run 38-53 degrees. 1080ti`s
full member
Activity: 588
Merit: 103
I did't play with Temp/Fan settings and my cards with modded BIOS runs at 65-69c with a fan speed around 44%.
legendary
Activity: 1624
Merit: 1130
Bitcoin FTW!
I've heard many different opinions and the last was that you must keep the fans at 100% and this will extend the life span of the gpu's. I run my fans 70% and the temp is around 82c and you could not touch the cards.They're extremely hot. But i think my problem is not from fan adjustment instead of space ventilation. I have placed too many gpu's in one room and have no option to put some king of fan to get our the air. Do you think this temp can cause some damage to the cards - evga 1070 ti.
Cheers!
Problem is the fans on some GPUs break pretty easily if you keep em at 100% for a long time, and replacements cost time and money.  


At the very least 80c+ is subpar and you should consider moving some GPUs to another place to lower temps or undervolt to reduce power consumption and thus lower temps a bit. My oldest RX 470 ran at 80c for a year and it's still going fine, though I moved to a cooler spot a few months ago.
newbie
Activity: 2
Merit: 0
I've heard many different opinions and the last was that you must keep the fans at 100% and this will extend the life span of the gpu's. I run my fans 70% and the temp is around 82c and you could not touch the cards.They're extremely hot. But i think my problem is not from fan adjustment instead of space ventilation. I have placed too many gpu's in one room and have no option to put some king of fan to get our the air. Do you think this temp can cause some damage to the cards - evga 1070 ti.
Cheers!
sr. member
Activity: 672
Merit: 252
Until the end
I set mine to a low temperature and power threshold.  The system determines the minimum fan speed based on GPU Temp, which doesn't get too hot because the power is scaled down.
full member
Activity: 714
Merit: 104
Dont run gpu coolers on high speed, more than 50% this kill fans very fast.
Use extended 12mm cooler for better cooling, this also will be silent
sr. member
Activity: 826
Merit: 302
I prefer temp ~65c. For some cards set 50%, another 65%, but need see not only for %, chech fan speed it can be 1200 ( 40% ) on 1 card and 1600 ( 40% ) for other card if they have don`t same cooling  Wink
full member
Activity: 210
Merit: 100
I'm wondering what's the average fan speed some of you use?

I have some GPU's that are ok with 50%, but some need 70%.  I've heard some people say 70% will kill your cards early, while others have said 70% has lasted them years.  Anyone have experience?

well about setting the fan on 70% will kill your gpu but settings for my cards depends on temperature of the card itself so if card temp were 60 the fan 60 and so on sometimes i make below that with 10 degree in the cold days
and remember the hot temp of a card could also kill it
full member
Activity: 266
Merit: 103
I honestly just mod the GPU temps with afterburner and leave fans at auto. (Although I heard there are much more efficient ways to mod other than afterburner, I prefer it's GUI). Main reason why I do that is because on most of the GPUs I run the fans are the first thing to go.
sr. member
Activity: 518
Merit: 250
i like to keep my GPUs cool, around 69c. That means around 70-75% fan speed. My oldest card is a 1070 that i bought the day they were released, and it is still going strong. So im sticking with these setting becourse they seem to work for the Nvidia cards.  Smiley
newbie
Activity: 312
Merit: 0
OverdriveNTool, set gpu target 57C
jr. member
Activity: 202
Merit: 2
I found this topic useless.
You need to be specific!  Angry

I do have Vega 64 cards and the min is 3000RPM because the problem of this card is HBM temp and not CORE temp. The rpm is not related to HBM temp, so, you'll need to keep the min high since memory temp will be higher than core always.

Vega card is most often used in cryptonight algo that do not generate a lot of heat compared to others, i think longevity wont be a problem.

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