anyone else have issue where the prisma comes up great but within in hour it just keeps losing hash down to like 700gh/s? I am using the BE controller atm until adapters arrive
That may be a PSU issue. You might try chaining just two boards up and seeing if it acts saner, then try the other two boards and see if you can determine a bad board. If everything runs full speed with two boards, try three. What type of PSU do you have?