Hi all

I am having problems with one of my rigs and need some help. I am not new to mining, nor to this thread (just never needed to post before), but I certainly won't pretend to be an expert either. The rig I have an issue with (runs 3 x Sapphire Nitro+ 480 and 1 x 470) has been running well for about 7 months or so. It was running on V12.5 without any issue, however it crashed the other day and hasn't worked correctly since. The machine runs fine, Claymores V12.5 and V12.6 are both acting the same, when I start mining it recognises all the cards etc but then it mainly lists incorrect data, line after line. Please see the screenshot.
Is someone able to point me to the route of the problem?

Thank you

https://i.imgur.com/7H4bjvr.png