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Topic: Plz help 570/580 (bios power) (Read 284 times)

newbie
Activity: 18
Merit: 0
August 21, 2017, 06:50:34 PM
#1
Hey All

I am running Linux OS (Simple mining) and I am looking to tweak my cards. I have a bunch of Assorted 570/580's and I have the memory timings all figured out and stable. However now I am trying to battle the power situation as Id like to lower it best I can (since Watts = heat and power consumption = $$$).

I've been using the power stage (DPM) feature I find it hit and miss depending on what im trying to do (I simply don't like using it for tweaking)...so id like to mod the BIOS on the cards and hard code the voltages.... Is this a viable solution ?  am i on the right track. I hope my understanding of this is correct.

CURRENT Values: *large values/numbers are configured by vendors. Are they ranges of power i think? (general binned values for mass sale... since not all cards/silicon are equal)
 Mhz    mV
 300    750
 588    65282 (DPM stage 1)
 952    65283 (DPM stage 2)
 1041  65284 (DPM stage 3)
 1106  65285 (DPM stage 4)
 1168  65286 (DPM stage 5)
 1209  65287 (DPM stage 6)
 1244  65288 (DPM stage 7)

GOAL  To Hardset mV value: (I wouldn't know what exact values to put in here.... but this is estimation) can you guys help in this area???
 Mhz    mV
 300    750
 588    850 (DPM stage 1)
 952    850 (DPM stage 2)
 1041  850 (DPM stage 3)
 1106  850 (DPM stage 4)
 1150  875 (DPM stage 5)
 1200  900 (DPM stage 6)
 1250  950 (DPM stage 7)    1300 1000 (< would be cool to hit a high core but limit mV)
 

Am I on the right track ? Can this be done by hard-setting BIOS values?

Cheers
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