Topic: it's too hot in the room! (Read 834 times)

phishing again

i had 12 gpus running in a 12 m2 room, and it was always at 35ºC and over that if it was very hot outside. I used two fans. One to take  out the hot air through the window, and another one to blow air to the GPU's. at 60% fans not even one of them is above 65ºC.

The problem is not the gpu's temperature, but the PSU. If the temp in the room is high, your power consumption will increase. in my case, in winter, with about 20ºC in that room, my PSU was using around 910W from the wall. In hot summer, it was using 940W from the wall.

so the component that most suffers hot in the room, is the PSU. and will also make suffer your pocket, because it increases electricity bill.

Fortunately, i stopped them like a month ago. I'm not that stupid to keep them mining at a loss, specially if i think that this market is dead and this coins (ETH) will never recover.

Wow, What a read from a newb, thanks for sharing

this is what caught my attention


I want to try this out if it will contribute decreasing heat

 
Lol, same here, I always check the breakers and wires through the power of my palm touch sensors  

I once had 40-50 GPUs in one room. I had an open tent over the GPUs and fans above that sucked out the air and then tubes went outside and up into the air 5 feet. Next I also had fans that pumped air into the room in front of all the GPUs and box fans that blew over them. I used a box outside that had an open bottom  and open side. It was bigger than the window and mounted against window. I found out this prevented rain water from getting in and could leave fans on during a rainstorm. The type of fan you use is important. For input the standard box type fan will work. For output use only inline fans as they can create more pressure but use more watts. 12 inch ones work great or 6 or 8 inch too. If you get the smaller ones you will need more, but that can better pull air from different parts of the rigs too. I put a blanket over the top to quiet it down. It will actually work without intake, but you will create extreme negative pressure in your house which probably isn't healthy to live in. You need to measure exhaust temp as if its too high, then you need more exhaust.
       Eventually I switched to a 10x12 shed and used the same design. Air in one side and out the other. I put in the biggest windows, then removed them. I had it designed so on the long sides were both windows and no where else. Next, I removed the windows and mounted a huge overhanging box 40x50x30 inches with two open sides and placed bug filter under it and stapled it to the wood. I has to vacuum this weekly. It was drilled right into the shed where wood studs were for windows. I mounted a two 2500cfm fans on input on inside window seal which was extended with wood and had (10)  6" inline metal fans on output as I had used these inside the house. I even had space to add two more 12"  inline fans on output too and bought them, but never installed as it wasn't needed even at 100 degrees Farenheit. This ran 70 GPUs for a year, but did run them at 70% power and keep fans running 95% if temp went over 62 Celsius. Noise wasn't an issue as the shed deadened a lot if it. I did have to paint the roof white as it was overheating until I did this. I didn't need to insulate it after I painted the roof white. Cost of shed was $4200 delivered. As far as wiring, it ran off 240v (2 wires only) I used two 4AWG wires off two 60A breakers that ran in a sealed and glued PVC pipe for 90 feet to the shed wiring connections, which was over-sized on all connections. I also used the feel method on wiring connections to make sure my breakers were never even warm. Never had any fires, etc. Never used lightning protection and had three motherboards fry. No GPUs were effected. I had one fry the CPUs and memory too. Two motherboards NICs quit working, so I replaced them with USBs ethernet ports and worked perfectly. Lightning can be expensive.

In a view to decrease hot temperature you have to downvolt your cards at the minimum. It is very easy to do with MSI Afterburner for Nvidia cards (800mV and -400 Mhz on GPU Core) and in BAT-file for Claymore (840-850 mV on Core and memory and 1100 Mhz on Core).

now i have added a 40cm fan next the windows that pull air from it to the rigs, the fan in the dry wall iss on and create a flow . the temps are more low and stable now

You need intake and exhaust and they shouldn't be on the same wall.  For the number of GPU's that I have, I pulled in cold air during the winter from one window and left the other window open as well.  That worked in the winter, because it got so cold, but it wouldn't have worked when summer came around.

I can't tell from your pictures what that fan in the wall is doing.  Is it pulling fresh air into your mining room from whatever is on the other side of that wall?  You might be ok if your intake fan is on one side of the room, gpu's in the middle, and exhaust out the window on the other side of the room.  You also might want to consider a more powerful fan.  Cheap 20" box fan to pull hot air out of the room might not be enough.

Thanks.  It's just a spare upstairs bedroom in my house.  It's not perfect.  Sun hits that side of the house and it's also directly above my garage, which is not climate controlled, but it works with the proper ventilation. 

You might want to consider how much Temperature outside the room

As it contributes the air inlet

also how powerful your Exhaust fans and inlet Fans just in case you decided to replace your ACU's

thanks to all, now I have made an idea on how it should be made ...maybe the problem is that the ceiling is too low .

Now the temperature is 34° in the room with all the fans spinning. i really dont understand why it is so. there is a stagnation of heat. it is not really simple solve this problem , someone told me to make a exhaust fan in the ceiling but before doing a so hard modification i try with fans at the windows like in the pics posted but putting hot air out , the one that i put in the dry wall does nothing

I have 9 RX570 GPU with 1 unit Air Conditioner 1/2 PK, and my GPU got 65 C temp

I assume the room does not have much ventilation. You may use a fan those they use in the kitchen to take the heat away (blower type fans) from the room.
Here are some tricks I found which will be helpful if you don't have a budget for the blower fans : https://www.stuff.co.nz/life-style/76937902/Can-t-sleep-because-of-the-heat-Try-this-clever-fan-trick

The air condition is going to cost you more. So, it's not a good idea at all.

Wow... what a sexy setup bro gotminer

I'm really impressed on the cleanliness of your mining cave

carpet floor and a well ventilated room

looking at your GPU babies are seems happy doing mining

 

I see it's not clear, like VPM or ordinary fans? If I use VPM which is assembled for each rig, I have used a regular fan but what happens, the heat that's blown isn't as efficient as using VPM, btw, overall I see your mining room very lovely and comfortable.

That's 31 gpu's in a small room.  Since the point I took that picture, I've closed the second window and put a filter between the screen in the other window and the intake fan.  It also works just fine with filter only.  The exhaust fan pulls air in through the window, but the filter does slow it down some.  I also have 20" box fans on the back of each mining rig blowing air through them.

When did he ever say that he was sleeping in his mining room? Lol.

Why do you sleep where your GPUs are? I think that's bad for your health with the AC turned on and the GPUs heating in one room. It will give you sickness dude. You should read about how to manage to mine and living under one roof, not in one room.

Plus I think this would be a concern if you are in a residential area if it is not, then its good. But you should really look into it. Maybe create a room for your GPUs and a room for yourself.

Took a quick look at your temps. Your Gtx 1080ti is running quite hot. You should throttle it down. Are you Running MSI afterburner? You should manually set up your fan speeds to 70% manually. BTW your 37 Degree room temperature is with Air Conditioning or without? I had my rigs run in a 45 Degrees Room temp. They have been mining at stable 70 Degrees for the past 3 months without a hitch. I don't have any sort of Air conditioning for them. Target the number 70 and you should be good.

As for what more you should do. I believe you have done enough with Open windows, Table cooling Fan and air conditioning. You can't do anything more than this, Except for blasting out the Air condition 24/7 but it won't be profitable. Good luck!

Yep, pretty much what several others have said.  A good sized fan in the window that sucks out hot air (Preferably near the ceiling as hottest air is there).  I have a lower half window that just lets cooler outside air get pulled in due to negative room pressure from the fan.  Additional fans move the cooler air around at floor level to direct it at rigs.

https://imgur.com/orUWhfc

Temperature settings in afterburner throttle the cards if I get above 72 degrees.  Not really an issue that I have seen.  I have the rigs set up on metal shelves and the floor level rigs stay several degrees cooler than the next shelf up.  If I had to do again I would eliminate the upper level rigs and keep everything floor level.

Yeah I have a massive hvac belt driven blower pushing air in and a window fan taking air out in my garage.  But I leave for days at a time and it does get hot here certain times of the year.  It will be uncomfortably warm out there but I run Linux and have my cards set at 70 so if they start to heat up over that the power level will drop till they get back down and then when it cools off they will rev back up.  But yeah with Windows and afterburner I have done the same thing setting the temp limits.  It seemed to work the short time I was mining on windows.  But yeah windows alone will roast your gpu's.  It will allow them to get hotter than I would want that is for sure.

I think Nelly had a song a while back about the woes in dealing with high temperatures in his mining rooms.  He's quite the forward thinking as it was strangely written before the advent of Bitcoin.

Just gonna say this and leave the thread - those are terrible pictures.  Terrible.  Awful.  Bad.  Boooo!
(as a show of support I will now contribute to the discussion.)
Find another algo that runs cooler.  Or do hashing the old fashion way with pencil and paper, before CPUs dominated the network
https://www.youtube.com/watch?v=y3dqhixzGVo

I've experienced melted riser but not because of GPU temps

its due to bad wirings, wire gauge and power handling issue that I use

3 usb riser on a single molex rail

In my Setup most effective and cheapest to manage heat is to blow hot air outside, and let fresh air in

a Two industrial blower type fans solve it

   

It is expensive solution if you dont have it and spends a lot of electricity. Some miners are on the verge of limitators in the house. In my apartment it si fixed at 7kwh, and i would need to remove miners to run AC.
I just installed some fans and opened the windows. Tempts that you have are not critical and they can work no problem. I have some cards that are constantly over 90 celsius, but they are blower cards. GPUs are made to endure high tempts and can work until winter comes in that conditions. if you are worried bring the cocks down.

Whoaah 80C+ is fine bro?

Same here... Never heard of of such!

of course not

And other things I've experienced when the GPU gets too hot:
- PSU cable and connector from/to the GPU melts
- GPU paste processor quickly dry
- GPU fan loosens quickly because it is forced into the maximum rotation (R9 290 sapphire).

You sure you didn't accidentally use bad wiring to get that melted riser? Such as a poorly connected +12V?

Because its very rare for an riser to melt due to GPU heat. The GPU might run at 80-90C but that's at the chip level, the rest of the PCB is most likely around 50-60C and shouldn't be able to melt the riser.

This is actually the first time I am hearing something such as this.

Well, previously when I run my GPU hot, I got a melted riser.

yes, R9 series (290,290x,390) can run at that temperature even 90C for 3 days, but 80-90C isn't good for other hardware especially USB Riser can melt (that's what I experienced) and sometimes Rig can restart itself, until now to reduce heat all my Rigs using assembled VPM (Delta), this method pretty good (for me).

For a hobbyist heat is the main issue.

I ended up with my 9 card rig in a stair well where the heat can rise and its hot as a mother but the cards are all 68-70 c.

The key is its isolated to an extent from the cooling for the rest of the house. The heat pools in the upper stair well but its closed off.

I spent weeks trying to find a spot where I could deal with the heat.

Have you tried to use afterburner software?
try to set the temp to 70 degrees on afterburner software it prevents to get your miner hotter.
Make sure your graphics card is far from the other cards so that the hot air from other cards not sucking from the other cards.
like the other said exhaust fan it is one of the important to exhaust all hot air from the room.

Better go with exhaust fan and put additional fan to ensure you don't break the rig. One has to be careful while mining , hot air can mess up performance and through put.

GPUs can handle somewhat high temperatures pretty fine (around 65-80C). I have seen people running their mining rigs at 85C for 3+ years with no problems (R9 290 cards aka heat blowers).

To get the temps. down, just move the hot air out of the room you have your rig in.

Your GPUs can survive the 37C ambient temperature no problem, the problem is human habitation at those temps.

Either get an intake -> exhaust box fans and put in your windows.
Turn off some GPUs.

Basically a 10,000 BTU can remove like 3000 Watts of heat so could be up to 20 GPUs. That's only if your ambient temp is cold however.


Or just get a server chassis and put the exhaust out the window.

I have put the rigs of my colleagues in the server room so we don't suffer much from the heat but with your situation you can only hope that summers passes away soon , which it should and hope that autumn is a cool one.

Anyway if the temperature of Gpu-s are less than 70 most of the time it is a good thing. Remember prolonged working hours with not the right temperature will shorten a Gpu lifespan, theorically though as I have seen people with 71 degree temperature running since 2016 so practice shows otherwise.

You should not worry as long as temperature is below 70.

https://ibb.co/f6p6He
https://ibb.co/cFJcOK
https://ibb.co/bGxRHe
https://ibb.co/kuhFAz

38° near the rigs, open windows. i dont use air conditioned. but i guess if i would like to mine when it's hot with more stuff i have to use it. . people help me . it is already the second time i have to sell all in april and when its hot i dont mine.
yes thereisnt much noise

Air conditioning. Lol. Stupid newb

Not only hot but how can you sleep with all that noise. 

I used specialized freon fueled refrigeration coils.

https://ibb.co/gQvJVz temp of the gpus

You must take the hot air out on the room you must have an exhaust fan to sucks the hot air out from the miner.
Because if you are just using air conditioner without taking out the hot air from the room it mixup heat and cold.
So, you must have a proper air circulation to make your room cooler.

Should be no problem at this Temps 60° - 70° !
Fans should be run always! 

sun is high , i have installed conditioned air  and a professional fan in the drywall that move away hot air from the rigs space and a table cooling fan that move air on the rig. but temp is still 37° in the room. i have only 7 gpus now. when hot arrived i had to shut down 14 gpus because of this! this has become my nightmare, when i wake up i feel it has been too hot there in the night! gpus are at 65 °
air conditioned is not always on, i cannot . but with open windows air come in
what to do? what's happening? i hope winter come soon so i can come back to mine