With regard to the lag in BIOS after disabling CSM, this is not present all the time !? sometimes it works fine sometimes there's a lag (although I personally don't mind too much I'm 48 years old so my brain has slowed down
I have totally ditched manual / per-ccx overclocking as I have great results with the following settings :
(3900X/X570 master/2x16GB/nvme corsair MP600/2x2TB samsung HDD)
- negative offset -0,50V (instead of -0.9125 because *one* core would fail in prime95 max temp (option 2) test, and ESXi would also refuse to boot - apparantly it's a good stability test)
- Base clock 101.10 to change highest boost clock from 4600 to 4650. All-core boostclocks also higher due to this. All devices are stable with this higher base clock. I also changed the voltage offset to cover for the higher clocks (higher heat so a good cooler is needed)
- Applied DRAM Calculator FAST settings for 3800Mhz settings, but set UCLOCK/FLOCK ratios to 37,33 (with the higher baseclock this gives 1887 instead of 1866 clocks). 1900Mhz was flaky already so the additional offset due to the BCLOCK is not realistic.
- Load line calibration to high
- VDDP 1000 VDDG 1050 SOC 1,125V
- PBO 500/500/0(EDC) 10X scaler (CBS/XFR menu , not AMD overclocking)
- F11 bios (F10c/d or F10 would probably fine but F11 doesn't produce LED POST codes like F8 etc.)
These settings may or may not work for you due to the silicon lottery but it may give some ideas maybe. cheers.
Benchmark results for multi and single core are so good that I don't see a reason to apply manually with ryzen master or BIOS anymore)