I finally got a chance to test some other shunts on my FE 2080 Ti.
When using 5 mOhm resistors, as I did on my Titan X (Pascal)
, the 2080 Ti goes into emergency mode with a lot of loads (stuck at 300 MHz). My first try adding a shunt above 5 mOhms, 8 mOhms, did not trigger the cards safety mode. I used Panasonic ERJ-M1WSF8M0U
current sense resistors, which match the original resistors on the card.
This is not bad, 1/5 + 1/8 = 1/3.077, for a final power limit of 1.625 * 260 = 422.5 watts (520W at 123%).
Edit: My Kill A Watt's reported power draw tracks well with what hwinfo reports for power use (x1.625) so I believe my mod worked as expected and I can use hwinfo to get a fairly accurate value for the card's powder draw.
Sadly my card doesn't OC that well, 2115 MHz core and 8100 MHz memory, but no throttling is nice.
Superposition 1080p Extreme: 10310
Superposition 8K Optimized: 6033
Time Spy Graphics Score: 16395
Time Spy Extreme Graphics Score: 7768
Port Royal: 9215