Well on my fifth bios flash/mod...learning as I go.
1st bios change, just increased max mw power to 300k, left default alone, but default mw triggers 1st step in throttling, so that was a failure.
2nd bios change, increased just max mw power and default mw power both to 300k, thought that was going to work per earlier post here
While that seemed to make sense, since I was just removing card throttling, and let the built in logic take over...turns out that was unstable....my stock bios setting had specs base clock 875, boost clock 928, boost limit (slider controlled) 1254. While stable at full load where stock settings were 1254 core and 1.21v per the stock software logic... during transitional loads, it would sometimes crash, and now I understand why others are changing P0 and P2 vcore. See pic below, clearly shows that P0 and P2 (resting) states both are capable of reaching 1254 core clock, despite volts can be low during P0 and are with P2 to 825-912.5, pic 2. But that means nvidia knew my card would throttle and stay below 1150, hence they never worried about the fact the default logic with default 1254 core limit would be unstable, if throttling removed...ie, guess they dont test logic at high end since cant get there because of throttling.
My final bios, I am increasing max mw and default mw to 300k, increasing boost clock to 1176, and decreasing boost limit to 1176 (Im not sure it matters to increase boost clock, since I changed both default mw and max mw to same value, so may be just boost limit that matters...but just making sure). Then raising P0 and P2 volts to 1.17....picking 1.17 because that is what my stock settings feed my gpu at full load at core speed of 1176, and is stable so far. (Alternatively, I could have left my stock settings of boost limit to 1254 and increased P0 and P2 volts to 1.21....but went with the conservative approach).