Thanks for the article. Really helped to boost to 28.3 Mh/s in single mode (at 74 degrees C, 95 watt)
Not getting any hash errors.
I wonder if you have sufficient power/volttage on the cards.
Do you think that you have sufficient PSU?
I remember similar issues with DDRAM (depending on sequence, placement) - I was "losing" RAM till I found that stronger PSU solved it
NB: going to install more GPU, will report back with my findings (so far running just one)
Cheers
Did you flash your cards? My power meter currently shows the whole rig is using below 950w of power so I would assume it should be enough. My cards throw memory errors at random. Sometimes when i reboot my system gpu0 is showing stable 0 next time same card is throwing many errors, very strange. What motherboard do you use and how many rams you got installed?