Question I want to have PBO turned on but my PC keeps restarting at POST and I don't know how to fix that ?

Aug 18, 2025
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< these are my specs and i just switched to amd i used to always use intel and i didnt know if theres a way to turn on PBO without my pc going into constant restart at post. also if not what other settings should i use/ not use to get more out of my chip
 
Full system specs, including PSU make and model (or part number) is? Also, how old the PSU is, and was the PSU bought new or used/refurbished?

I want to have PBO turned on
Do you even know what PBO is? 🤔

If you do know what it is, then you should know that your MoBo 6 main phase VRM rated at 60A isn't anything to be proud of. And most likely is the sole reason why you can't turn PBO on. Meaning that your MoBo isn't beefy enough to allow PBO turned on for R7 7800X3D.

Now, if your MoBo would have 20 main phase VRM rated at 110A, then it would be completely different story.
 
ik that its a feature that forces the cpu to push thermal and power output to increase performance but thats really all i know unfortunately. i got this cpu and it feels like my intel i7 10700k was much better, i just didnt know if i was doing something wrong or maybe that was amd's version of xmp so to speak. also my psu is brand new its 850 plat grade thermaltake. i appreciate the response!
 
ik that its a feature that forces the cpu to push thermal and power output to increase performance
PBO doesn't force anything. All it does, is affecting PPT (Packet Power Tracking), TDC (Thermal Design Current) and EDC (Electrical Design Current) power limits, IF the MoBo can handle it. If not, no dice.

All what PBO does, is potentially allow CPU to boost at longer period of time. And that's it.
There is no magical guarantee of increased performance. And if you do enable PBO, CPU warranty goes bye-bye, since PBO (and AutoOC) isn't spec/default. Same with manual CPU OC.

In-depth explanation here:

View: https://www.youtube.com/watch?v=B7NzNi1xX_4


i got this cpu and it feels like my intel i7 10700k was much better
Feels? 🤔

Did you ran e.g Cinebench on your Intel CPU and know it's score? And then, did you run Cinebench on your AMD CPU to know it's score? Whereby, you have actual proof which of the CPU is slower?

6 main phase VRM is essentially bottom of the barrel (4 main phase VRM would be even worse). Good enough for Ryzen 3 CPUs. But not for Ryzen 5, let alone Ryzen 7.

For Ryzen 5, i'd look towards at least 12 main phase VRM MoBo, IF you want stable power for CPU. While more would be better.
For Ryzen 7, 16 main phase minimum, while more is better.
And for Ryzen 9, i'd only look 20 main phase VRM MoBos, if not the best that can be get (24 or 26 main phase VRM).

Here's short video about what VRM is and why it is important:

View: https://www.youtube.com/watch?v=DOHkJtUkj8Y


High-end CPU is best paired with high-end MoBo, especially when you want to OC the CPU.
Your system currently has high-end CPU with low-end MoBo. Hence why it doesn't "feel" right and why you can't enable PBO.

also my psu is brand new its 850 plat grade thermaltake
This doesn't tell me much. Model is important.

Since else-ways, i can say that i have 650 Titanium "grade" Seasonic PSU. Good luck on guessing which model.

or maybe that was amd's version of xmp so to speak.
Also, you did not list the full specs as i asked for. Why not?

Your RAM is rated at what speeds? Since all what i can see, is that your RAM is running 6000 MT/s with CL36, giving you 12ns latency.
And i can not tell if you have: 4x 8GB, 2x 16GB or 1x 32GB.
 
ik that its a feature that forces the cpu to push thermal and power output to increase performance but thats really all i know unfortunately. i got this cpu and it feels like my intel i7 10700k was much better, i just didnt know if i was doing something wrong or maybe that was amd's version of xmp so to speak. also my psu is brand new its 850 plat grade thermaltake. i appreciate the response!
I just went through this. Clear your bios, start with basic setting like xmp enabled see if it’s stable, don’t touch anything else. After boot and see its stable go and enable PBO don’t touch anything else other settings you can have PBO in auto mode or you can play with voltage offset yourself for each core. I undevolted mine starting with negative 20 offset for each core and tried to boot , worked , tan some stress test all good, rhen went to negative 25 stress tested system was less stable as it did one reboot on its own, so I vacked down to 20 offset. And left it there.

Short of it clear your cmos, and don’t enable anything else or could be PBO is conflicting with another setting you may have and not realize. So for me I just had xmp enabled and then started with PBO settings.