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Ai Tweaker, AMD Overclocking & AMD CBS

qpierce42
Level 7
Motherboard: ASUS B450-F Gaming

So I normally use 'ai tweaker' for overclocking ram and the system boots up fine. I noticed in 'amd overclocking' section and 'amd cbs' section that there are options to input ram frequency and timings in those areas as well. I tried testing just leaving 'ai tweaker' on auto and try a ram overclock in just the 'amd overclock' section but for some reason it would not boot into windows. I used the same values that I used in 'ai tweaker' and just copied to 'amd overclocking' so I'm not sure why it wouldn't boot. Only difference in those 2 sections as for ram timings is that the 'amd overclocking' section is displayed in hex values which was converted from decimal.

Also each of those sections have PBO and was wondering which one to use? I noticed the 'amd overclocking' section has the curve optimizer so I was thinking of just using that section for PBO.

Any help would be appreciated in explaining each of those sections of the bios. :cool:
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2 REPLIES 2

qpierce42
Level 7
So does anybody know which section to use when overclocking ram? Ai Tweaker, AMD Overclocking & AMD CBS sections all have areas to overclock ram.

RedSector73
Level 12
I mainly use AI tweaker. I'm old school, don't use Ryzen Master or anything from OS to overclock.

AMD CBS, rarely need to use. (turn on virtualisation, think it was here)
AMD overclocking, very rarely use.

PBO is AMD overclocking thing and is the oldest method.
PCO is AMD overclocking thing, similar in function to Ryzen Clock Tuner.

Best off searching for few articles on PBO & PCO and learning what use it for.

PBO https://www.gamersnexus.net/guides/3491-explaining-precision-boost-overdrive-benchmarks-auto-oc
PCO https://hothardware.com/reviews/amd-power-curve-optimizer-guide-zen-3