So if I change the psu since I do have a REVOLUTION87+ 1000W psu all the problems should go away? I haven't overclocked the miner and all the other settings are default.
That is good PSU based on jonnyguru. But it's not single rail, it's have four rail. Each rail can deliver 30A.
But the connector divided to V2, V3 & V4. Each connector have 2 x 6 pin pcie connector which can connect to one blade only. Lets say one blade use 170watt(14A), then you are wasting 16A on each rail.
Single rail PSU is the best choice.
I don't really understand the "wasting 16A on each rail". The current used is what the miner requires, not what the PSU can supply, If the 12V load on the rail is say 15A, then that's what it gets. If you are trying to find a way to connect more mining hardware to the one power supply, then it matters. As long as a rail can supply what's need, with some margin, then you should be good to go.
Once the OP finds out if his miner will run for days at a time, without the "2-day stop" issue, then he can figure out what might be better and if he wants to spend the money. Until it's working well, it makes little sense to try and optimize the situation.
One other comment. It became obvious to me that it's usually a good idea to get a better PSU that might absolutely be required. A good PSU will likely be usable on a new generation miner. I now understand that a good PSU is a longer term investment than the actual mining hardware.
Summer is starting to get hot in some places both are valid ideas. I think between PSU or heat we will find the issue.