If somebody could help,
I've build a mining rig with 3 nvidia 1070 ti AERO and used a Asus Prime Z270-p motherboard.
I've already enabled above 4G decoding and reset the security keys.

Inicially the system was booting fine, and i've set up the cards with CC 175 and a MC 1200, power limit of 115W and fan 80. On the 1bash
I've opened the miner and it was mining around 480 sol's per card, with a temperature around 70 oC, i've letf it running for about 5hrs before turning off the monitor and going to work, at the time temperature were stabe at 68oC with ocasional spikes to 70oC.

Acording to the pool i was connected the machine was running for 12hrs and just before turning off there was a spike in the sol's. When i got home the RIG was on the bios. Now when i boot into linux if i leave the terminal open it crashes and reboots. If i close the terminal i can use the system, i can go into youtube and watch movies in 1080p, see the gpu's detected on the nvidia app.
If i try to run the mining terminal it crashes strait away, with terminal without running any command it also crashes.

First of all, do you think it was possible to have burned the gpu's with those settings with around a total of 20hrs of work?

What can be causing this? I've already tried changing risers, and formatting the USB and running it again.