Quote from: blastar on November 27, 2017, 09:33:55 PM

Quote from: bcn2048 on November 27, 2017, 09:08:43 PM

last night I switched pools in D3 miner, saved configuration, then third chain didn't start to mine at all, it showed around 62 O, after 5 minutes O changed to X. This happens for the first time. Restart didn't help, so I shut it down for night and bring it to the apartment. Next day I unplugged all cables (from PSU and hashing boards), refitted them again, start miner and third chain is back!

Don't know what happened, maybe it was too cold for antminer, I kept it at the attic and there is only 3 celsius degree at night.

What do you think about coldness - could it harm antminer ? I think if you leave it alone without interrupting it should be fine.

I'm on stock firmware (last one) and I was just about to try Blissz upgrade

I have my D3 miners in the cellar, and 2 weeks ago, it became very cold in my mining room, the temperature was somewhere between 2-3 deg C. I was shocked to find out that none of my D3 miners could start! they were just dead! I thought right away that it might be the cold, so I took one of the D3s to another warm room (24C.), and after 10 minutes, it started without a problem! As I didn't want to dismantle the other miners, I just took the one that worked and pointed its hot exhaust air to the intake fans of the other miners using a flexible air ducting hose to warm them up (1 min. was enough for each miner to heat it up). After that, they all started without a problem!

My miner is getting direct air from outside which is -9c and running strong atm but if the pool goes down they dont like to restart very well.
https://i.imgur.com/Nv5K9Hl.png