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Does PBO just not really do anything?

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post #21 of 33 (permalink) Old 11-25-2019, 09:45 PM
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PBO doesn't do very much if your temps go over 60C or your voltage gets too high. The core performance boost setting is effectively the same as the turbo setting on intel systems.. turning it off disables boosting and the cpu runs at it's base clock instead. If you want to manually overclock using the bios you should try to use a 1.0.0.4b based bios as that gives you per ccx clock settings.

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post #22 of 33 (permalink) Old 11-26-2019, 09:17 AM
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PBO on
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post #23 of 33 (permalink) Old 11-26-2019, 09:18 AM
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PBO off
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post #24 of 33 (permalink) Old 11-26-2019, 09:21 AM - Thread Starter
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Quote: Originally Posted by connectwise View Post
You can still set your parameters in bios that give you the OC you want.
I already did that, using PBO and Manual OC in bios (made several posts on it in this thread)

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post #25 of 33 (permalink) Old 11-26-2019, 09:26 AM - Thread Starter
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Quote: Originally Posted by VeritronX View Post
PBO doesn't do very much if your temps go over 60C or your voltage gets too high. The core performance boost setting is effectively the same as the turbo setting on intel systems.. turning it off disables boosting and the cpu runs at it's base clock instead. If you want to manually overclock using the bios you should try to use a 1.0.0.4b based bios as that gives you per ccx clock settings.
The 1.0.0.4b bios for my X470 Gaming 7 doesn't seem up to par just yet, maybe I'll dabble in per CCX at a later date.

As for now I've settled for a consistent 4.2ghz boost single and 3.95-4ghz all core. PBO on or off doesn't seem to make a difference in my case so I'll leave it on.

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post #26 of 33 (permalink) Old 11-26-2019, 12:06 PM
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Quote: Originally Posted by lightsout View Post
I’m more of a set it and forget it guy. And PBO has given me higher lightly threaded clocks than I can achieve on all cores.

So it’s the best of both worlds.

Plus going into ryzen master every time you “need” the oc would get old pretty quick.
PBO gives more clocks than manual or per cxx only when the workload is lightly single threaded. Once you load more than two threads, even no more than four, clocks go down to an hypotetical all core oc levels. I'm talking about averaged sustained clocks in a given period of time, not casual spikes, or short workloads which doesn't heat up the cpu.

If you dedicate the needed time to do tests, you set the overclock on Bios and forget about RM. It's three clicks by the way, less than 10 seconds.... but each to their own I guess.

PBO on Ryzen 2000 works really very well, making manual OC pointless, but sadly it's not the same with Zen2. May be we will see PBO doing great again with Zen3 I think.
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post #27 of 33 (permalink) Old 11-26-2019, 12:52 PM
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Correct me if I am wrong but I believe AMD stated PBO does not work on nonX cpu's, so not on 1600,2600,3600 only 1600X,2600X,3600X etc.

Either way, the AMD auto OC works very well. Once I manualy find my cpu's sweet spot I set it on auto with the correct VID.

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Last edited by Redwoodz; 11-26-2019 at 12:55 PM.
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post #28 of 33 (permalink) Old 11-26-2019, 01:08 PM
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Quote: Originally Posted by nangu View Post
PBO gives more clocks than manual or per cxx only when the workload is lightly single threaded. Once you load more than two threads, even no more than four, clocks go down to an hypotetical all core oc levels. I'm talking about averaged sustained clocks in a given period of time, not casual spikes, or short workloads which doesn't heat up the cpu.



If you dedicate the needed time to do tests, you set the overclock on Bios and forget about RM. It's three clicks by the way, less than 10 seconds.... but each to their own I guess.



PBO on Ryzen 2000 works really very well, making manual OC pointless, but sadly it's not the same with Zen2. May be we will see PBO doing great again with Zen3 I think.


Ah this is where we are missing each other. I am using a 2600x, I didn’t realize things were that different now.

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post #29 of 33 (permalink) Old 11-26-2019, 01:14 PM
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PBO voids your CPU warranty

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post #30 of 33 (permalink) Old 11-26-2019, 02:40 PM
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