1st one came with 4 cards installed and ran Pretty cool didnt generate any heat and i could feel a good breeze on the other side of the hall
what i've noticed was that later batches ( and i'll be checking my 3rd order when it arrives) started coming with 3 cards installed instead of 4 and run a bit higher..
I think they dropped from 40 chips / 5 boards to 32 Chips / 4 boards. Yeah it's got to work 20% harder so more heat/fan noise.
If they dropped to 3 cards, lol, that would be crazy! I think you made a mistake?