For us Zen2 users, with AGESA 1004b BIOS's PBO has seemed pretty much broke. Over at overclock.net, apparently it's bugs have been deciphered. Somewhat.
With my settings:
PPT=300 (experiment up or down a LOT...like +/-100...and it doesn't matter)
TDC=150 (same here, but like +/-50)
EDC=10 for 8 cores (15 for 12 cores; 20-25 for 16 cores; 6 or more than 16 cores experiment using the established trendline as guidance)
PBO Scalar - 5X-10X (experiment; I'm at 10X)
C States disabled, CnQ enabled
VCore = -0.0125, LLC disabled or a 'flat' load line (experiment with this, up or down a bit, for your board and CPU)
With my 3700X I get CB r20 performance, both multi thread and single thread, that's almost identical to an all-core, fixed voltage overclock that I'm never really certain is 'safe'. With this, it's ALWAYS a 'safe voltage' because SenseMI picks it from the FIT tables. Never a doubt!
It can run Prime95 at 4.2Ghz, all cores, sustained. That's 600Mhz above the 3700X base clock, 3.6Ghz, a33% 17% overclock. I do also have it under a 240mm AIO; good cooling is important to keep it from pulling clocks. Previously the best PBO would get it to was 3.9Ghz. Really a very nice improvement!
EDITED: fixed bad math
With my settings:
PPT=300 (experiment up or down a LOT...like +/-100...and it doesn't matter)
TDC=150 (same here, but like +/-50)
EDC=10 for 8 cores (15 for 12 cores; 20-25 for 16 cores; 6 or more than 16 cores experiment using the established trendline as guidance)
PBO Scalar - 5X-10X (experiment; I'm at 10X)
C States disabled, CnQ enabled
VCore = -0.0125, LLC disabled or a 'flat' load line (experiment with this, up or down a bit, for your board and CPU)
With my 3700X I get CB r20 performance, both multi thread and single thread, that's almost identical to an all-core, fixed voltage overclock that I'm never really certain is 'safe'. With this, it's ALWAYS a 'safe voltage' because SenseMI picks it from the FIT tables. Never a doubt!
It can run Prime95 at 4.2Ghz, all cores, sustained. That's 600Mhz above the 3700X base clock, 3.6Ghz, a
EDITED: fixed bad math
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