I've been mining for more than 5 years, but recently ran into very strange problem. I assembled four new rigs with MSI 470 cards and Corsair RM1000x PSUs. They worked flawlessly for two months, and then one day one rig went offline. Fans didn't spin, it was fully off. I checked all the cables, there were no signs of burned cables, so I tried to turn it on again. As soon as I switched PSU on it exploded. There were small parts coming out of it once turned upside town.
One of the cards in rig stopped working, I removed it, and rig continued to work fine with new PSU.
I thought it was just a coincidence, faulty PSU or something, but exactly the same happened today on another rig. So, I guess it's combination of dead GPU, and Corsair's lack of PSU protection that caused all this mess.
I will switch all PSUs on these rigs to another brand, but am curious if anyone experienced something similar?