No one has actually answered you. You should be googling "subzero overclocking" you can run in the sub zero tempretures. There is no condensation since it evaporates in the air in case you wondering.
Unless you massively over clocking your rig I don't see how doing this helps. Therre is a reason people don't do this to their rigs. If you can do it for free then go for it.
I've found a very nice thread that answer my question a bit.
https://bitcointalk.org/index.php?topic=62814.0;viewResultsIt still doesn't talk about the lowest safest but I guess I wont be able to get the GPU's lower than 40C and if I do I will worry to keep them at least between 40C and 50C.
Anyways I still feel like 40C is pretty hot.
But I guess is not like that for a GPU meant to be running over 60C.
40 is cold. A gpu can run in the 90s celcius. I mined for months with my rx480 on full load at like 80 celcuis. It is normal for a high end gaming pc to reach temperatures like that on full tilt. Obviously, people lower it with fans and such. If I put the cover back on my pc is gets much hotter. I have 4 150mm fans in it.
any updates on your success?
I am thinking of putting my rig in the attic but worried of winter temperatures, as the attic is not insulated or isolated from outside direct wind and dust. similar to yours I guess; I am curious what happened to your project as I am looking at building like a massive net box to put the rig and then see if the hot air dissipates in the vast space, also worried about bugs and insect being drawn to warm at night, or those bright white blinking lights/ among condensation and other issues.
I look forward to your reply
any updates on your success?
I am thinking of putting my rig in the attic but worried of winter temperatures, as the attic is not insulated or isolated from outside direct wind and dust. similar to yours I guess; I am curious what happened to your project as I am looking at building like a massive net box to put the rig and then see if the hot air dissipates in the vast space, also worried about bugs and insect being drawn to warm at night, or those bright white blinking lights/ among condensation and other issues.
I look forward to your reply
Dust causes static and static destroys electronics.