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Topic: winter temps: how cold is too cold? - page 2. (Read 2297 times)

hero member
Activity: 770
Merit: 500
February 05, 2014, 11:57:35 PM
#7
quick background
So for north america is winter time. Where I live its been cold (30 degrees F, 0 degrees C)  for a few months. I have my rig about 12 inches from a window that I open just enough to let cold air in. It really lowers my gpu temps a lot and allows me to get high hash rates with no HW errors and fans spin at a low speed.

Ive since setup a simple contraption which funnels the air into my case quite efficiently (hopefully a picture attached soon).

My question:
Can the outdoor air get too cold that its harmful to my rig? Its currently about 0 degrees F and may hit -10 degrees F over the next few nights.

no harm unless there is a rain.
hero member
Activity: 490
Merit: 500
February 05, 2014, 06:18:04 PM
#6
Quote
here is no "to cold" temperature

Actually you can get too cold and the electrons stop moving!

It won't happen without liquid nitrogen though. Wink at -144c http://youtu.be/QmSBaizEqkk?t=5m11s

The main problem is cold/hot cycles can crack lead free solder so best to try and maintain a constant temp and not let it fluctuate on BGA devices (GPU/ASIC) or they may one day stop working and need to be re-flowed.
full member
Activity: 238
Merit: 100
February 05, 2014, 04:08:18 PM
#5
I've had my rigs near a window that has been in the -0's F for months.  They've have been great.  I'm not sure below freezing is good for the fans though.  I think just above freezing say 40F is probably ideal ambient air temperature for mining equipment rooms.  Provided everything is properly spaced apart and air can flow around the entire room in between cards, all hardware, etc.  And that air is exchanged with the outside for new air.
newbie
Activity: 3
Merit: 0
February 05, 2014, 04:06:56 PM
#4
For my mining rig (various hardware including GPUs)

I just keep my room cold in... It sits around 25-40 degrees F, I prefer not to leave my machine by any windows without protection against condensation.

I would  also add an extra mesh if you are just using a normal window screen. I use a compressor often as I live in a populated desert and the there is dirt flying everywhere some days. otherwise my macchines are fine at 60-75 degree Celsius temps easily during the winter.
member
Activity: 68
Merit: 10
February 05, 2014, 04:01:42 PM
#3
I've found that if i let my antminer get to 10 Celsius(on board reading) while mining, it has a tendency to constantly reboot. If I use a IR thermometer it usually reads -20 C. I think the super low temperature could be doing funny things with the electrolyte in the capacitors. So now I have it in a container that has a small vent, inside the box while mining it's usually around 10 C and the miner itself reads 35-40 while the IR shows 0-10C on the caps themselves. Could also be the PSU since it's in the same box...But anyways that's been my experience with mining in the frigid north.
sr. member
Activity: 266
Merit: 250
February 05, 2014, 03:23:11 PM
#2
my bfl 60gh units are so happy on -20 Celsius.

there is no "to cold" temperature as long as miners are protected from snow or rain.
 
full member
Activity: 125
Merit: 100
Check out FireCoin!
February 05, 2014, 03:10:03 PM
#1
quick background
So for north america is winter time. Where I live its been cold (30 degrees F, 0 degrees C)  for a few months. I have my rig about 12 inches from a window that I open just enough to let cold air in. It really lowers my gpu temps a lot and allows me to get high hash rates with no HW errors and fans spin at a low speed.

Ive since setup a simple contraption which funnels the air into my case quite efficiently (hopefully a picture attached soon).

My question:
Can the outdoor air get too cold that its harmful to my rig? Its currently about 0 degrees F and may hit -10 degrees F over the next few nights.
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