So after a lot of testing, I am no longer able to get my previous stable overclock, which was with the MaxAir bios(450w Power limit, 1.25v fixed), maintained 1290 as default and 1480 with overclock and power slider to max:
980Ti-SC-MaxAir.zip 152k .zip file
Now using a modified bios with unlocked voltage sliders:
EVGA.GTX980Ti.6144.150527-Sliders.rom.zip 152k .zip file
I used this bios, which has the "hidden sliders" unlocked, however now the card does not really want to go above 1.230v(as measured by Precision), and it trips some kind of voltage limit and throttles down to 1.155, which brings the overally freqency down.
If I modify the unlocked bios, with the same settings as the MaxAIr bios, the power mod does work, however I think its tripping some kind of overcurrent protection and the display shuts down and PC requires a reboot.
If somebody with more experience with BIOS editor wants to take a crack, please do.
Note: I am also still to find a bios with 3 unlocked sliders. The one above has 2. Card is EVGA 980TI SC+ ACX2.0.
Evga980TISCACX2.0StockBios.zip 151k .zip file
Edited by xciter327 - 11/20/17 at 4:14pm