Help with miner issues - I think Condensation. See pics

[RigMaster]

Hi Guys

My setup:

I’ve got 6 rigs set up with 12GPUs per rig (RX470 8Gb Nitro+)
I did put ground vent in but I put way too many stones in and it’s blocked so I later cut out 4 exhaust fans in the back wall (3 behind the rigs and 1 slightly aligned left of the rigs).

I also took a window out in front of the rigs for cold air intake. I put an insect mesh in place to stop bugs coming in and sealed the shed so it is air tight.


My problem:
A PSU failed a few months back and i thought maybe it was a roof leak but I found no leaks. Replaced the PSU and all was well. Now 2-3 months later the same rig has failed, this time it’s corrosive damage to the motherboard.

Any ideas?

I also notice my rigs randomly hang and restart. They sometimes work perfectly for weeks on end without reboots and then days like today they are hanging and restarting the miners on random rigs all day long. I suspect the Ethernet Switch is failing the same way the motherboard and psu did..

https://drive.google.com/file/d/1MsMOLCtgtzZVbBANQBrMGj_j7vHLfwuV
https://drive.google.com/file/d/1tDP-JKaSyoBXbkj3Aobnv5vF8Yr2RqZx
https://drive.google.com/file/d/18oLp6Go-jrX2nX2VGVVc15Zgr8ue6w20
https://drive.google.com/file/d/1FPkA5JtPe42LsnE3wHigtDq5FSmgKCGd
https://drive.google.com/file/d/1pfELeGGO9GDMUwzsBKprFfc2Fxjkv-lb

[philipma1957]

this is a gpu question it belongs in alt coins.  I asked the mods to move it.



Buy a temp/humidty gauge

show it to us


https://www.amazon.com/ThermoPro-TP49-Hygrometer-Thermometer-Temperature/dp/B07WCR5Y4B/ref=sr_1_3_sspa?


also are you within ½ hour drive of salt water?  Such as an ocean or a bay.

[RigMaster]

I added pic of a temp/humidity and pressure gauge, see the gdrive links please. No bay nearby.

[RigMaster]

this is a gpu question it belongs in alt coins.  I asked the mods to move it.



Buy a temp/humidty gauge

show it to us


https://www.amazon.com/ThermoPro-TP49-Hygrometer-Thermometer-Temperature/dp/B07WCR5Y4B/ref=sr_1_3_sspa?


also are you within ½ hour drive of salt water?  Such as an ocean or a bay.

Sorry file sharing was off. Try view the links again, you should be able to view them now.

[badbart]

I've run my gpu rigs with a water cooler in the room for 3 years and no problems.  In the summer the humidity gets high.  But I make sure I have good airflow.

[adaseb]

I actually used to mine in the winter with some cheap Antminers because I couldn't stand the noise anymore. Surprisingly I never had issues however they had to be kept running 24/7.

If you shut them down once in a while you would get issues. Such as if the dew point was below a certain point you might get frost all over the cases and inside the components. And even then, you couldn't just turn it on. It would fail to mine. You would have to bring it into the house, let it thaw, and after a few hours bring it outside again to get it to fully restart.

I did this only because the antminers were cheap, I probably wouldn't keep any expensive 1080TI Gpus outside however.

[tg88]

Perhaps thermal shock due to temperature variation is causing condensation. Extreme variations in room temperature cause this effect.

[philipma1957]

your meter shows 40 for humidity

you are not near salt water

not show why you have a corrosion issue.



Ie 65% humidity it is a no brainer

Near the sea or a bay  also make it easy.


But 40% humidity is decent

[RigMaster]

your meter shows 40 for humidity

you are not near salt water

not show why you have a corrosion issue.



Ie 65% humidity it is a no brainer

Near the sea or a bay  also make it easy.


But 40% humidity is decent

Exactly! I try to do everything right and still I got corrosion. I’m going mad trying to work out what it could be.

[RigMaster]

Perhaps thermal shock due to temperature variation is causing condensation. Extreme variations in room temperature cause this effect.

There’s not really any variation... like I mean the miners are on 24/7 they only ever go off for a reboot if something stops working, which usually may not happen for every 4-6 weeks.

[socks435]

Exactly! I try to do everything right and still I got corrosion. I’m going mad trying to work out what it could be.

How about your room temp.? Maybe you are living on a cold place that is why it still getting corrosion.

The ideal temp is around 60 and 75 degrees Fahrenheit if you get lower than 60 some components will always fail.

[RigMaster]

Exactly! I try to do everything right and still I got corrosion. I’m going mad trying to work out what it could be.

How about your room temp.? Maybe you are living on a cold place that is why it still getting corrosion.

The ideal temp is around 60 and 75 degrees Fahrenheit if you get lower than 60 some components will always fail.

I’m in London, UK. Outside temp is like 8c during the day and 1-2c on some nights. Inside temp is only 3~5c higher.

[batsonxl]

you are ventilating open air/oxidation and chip chinese pcb and here is result.Winter times even you think dry there is many particle in air can make oxidation fast, chinese pcb are not protected from oxidation.and also it looks like water leak happened.and also measure humidity outside too.Rigs dry air fast so measuring it inside will be not accurate.

[gt_addict]

Exactly! I try to do everything right and still I got corrosion. I’m going mad trying to work out what it could be.

How about your room temp.? Maybe you are living on a cold place that is why it still getting corrosion.

The ideal temp is around 60 and 75 degrees Fahrenheit if you get lower than 60 some components will always fail.

I’m in London, UK. Outside temp is like 8c during the day and 1-2c on some nights. Inside temp is only 3~5c higher.

Its probably the humidity this time of year in the UK. Always damp in the air and if you are drawing in cold air directly from outside chances are thats whats caused it. I'm from the UK and contemplated mining in my garage but it would be roasting in summer and a nightmare for keeping them cool, then winter would be the same problem you are having now. Thought better of it and just downclocked my miners (only a couple of old s9's) and put them in a spare bedroom with the heating turned off, small windows open and a fan blowing hot air out. Seemed to work ok. Well until electricity prices forced me to sell them as they weren't profitable.

[RigMaster]

you are ventilating open air/oxidation and chip chinese pcb and here is result.Winter times even you think dry there is many particle in air can make oxidation fast, chinese pcb are not protected from oxidation.and also it looks like water leak happened.and also measure humidity outside too.Rigs dry air fast so measuring it inside will be not accurate.

Checked the roof and definitely no leaks. Must be the cold air I’m drawing in. I have ordered a 25L dehumidifier which is coming tomorrow and will place it directly in front of the cold air feed and see if hopefully this helps. Ideally I would box up the air intake, tunnel it through dehumidifiers then pass it through the rigs but i haven’t got time to make this right now.