I've exchanged three EVGA 1080 SC cards (08G-P4-6183) over the last month, all exhibited the same fan rpm spiking issue...regardless of PXOC fan settings (default, custom curve, manual). I tried all PXOC/driver settings, removal of all OC/fan utilities, drivers (DDU/safemode), swapped power supply/outlet/cords...everything, because I've had so many issue free EVGA cards I was honestly surprised with an issue...especially a repeated one. But they have all had the issue on multiple machines and after not seeing much reported a month ago I've now seen at least five threads with multiple users citing this specific issue with the SC.
I've called EVGA and they suggested a few thing which I tired and offered to RMA but didnt know of or acknowledge a larger issue. I can still exchange/return my card but to hear they have stopped RMAs is concerning and counter to what I would expect, especially from EVGA. I would expect them to acknowledge the issue and communicate a plan/timing rather than leave customers that shelled out $600+ in the lurch.
I have had EVGA cards since my 6600GT and have had only EVGA cards since my 580. I quite like the 1080 SC sans the fan issue and was still considering exchange or RMA...if they stop RMA I'm looking elsewhere unfortunately.
Loyalty shaken customer...Benjamin