Could be Windows or the firmware for the GT7 only way to know with any degree of certainty would be to clean install Windows with the latest build and updates and do a full CMOS reset. Biostar firmware has had CPU clock related problems before where its incorrectly reported in task manager so it is more likely the problem is with the firmware and not Windows.
You’d have to ask bar that I just exposed the option as its already in the CBS modules.
Simply put, the core of all X370/X470 bioses are same. It’s the AGESA. Per AMD spec, PBO is only required to be enabled for 4xx boards. But as they share the same codebase, it can be enabled pretty easily on 3xx series boards. In fact, lots of mobo manufacturers have already enabled it for their 3xx lineup but Biostar is lacking as always.
Yep thats it in a nutshell AFAIK PBO works best with Zen+ CPUs though which is why I asked bar to check the feature out.
Sorry @ket I thought by the way you asked him, that you figured out something and send him another BIOS to test. Since it’s working for him, but not you, what does that mean, some compatibility issue with your CPU type but not his?
I gotcha now! Should be enabled for all CPU’s, who does AMD think they are, Intel?
It is weird only being used on the X models but its likely more just a suggestion in AMD documentation that manufacturers have taken too literally.
I bet you are right, I wonder if maybe we can fix that? 
Probably something that can be changed I never tested it on my 1700 though so don’t know or not if once the option is exposed and enabled if it’ll just work on any CPU or not.
@ket @Lost_N_BIOS : thanks for your replys but i cant figure out why the fans don’t behave like in the non modded bios. as soon as the temp reaches 32 °C all my fans go fullspeed. X37AG807.BST is working without any issues regarding the fans for me. but there is so much stuff missing like custom p-states, memory resistance, etc.
would it be possible for you to mod a bios for me the the “old” fan module which is found in X37AG807.BST? that would be really great!
@Screemer The changes made to the fan profiles are superficial there has been no changes made outside of retuning the default custom values and unlocking the [Fan Ctrl FULL] option. Without being able to reproduce your issue I can’t say what the problem is but it is one where changing the default retuned values should fix. I also got @barisuraz to try and reproduce your problem and he couldn’t either.
Maybe the fan Ctrl full option is the problem. What are the default options? Because you already mentioned the max. Temp value was 75 and you raised it to 85. Lowering those doesn’t help. By default the non modded bios has all fan options turned off. Your modded bios has pwm 4pin turned on for every fan header. Though there are some changes appart from the standard bios.
I’ll use the original bios from now on because the fan issue is way more annoying then 400mhz lower all core.
But thanks for all your efforts and you hard work you put in the mod bios.
@Screemer [Fan Ctrl FULL] is just a value to determine at what CPU temperature preset and custom fan values are ignored. Your problem is very much a niche one which best as I can tell is specific only to your system so its something you’d need to troubleshoot your end. The fan headers being enabled and set to 4-pin is to stop all of the fans running 100% by default, nothing more it is the exact same change as if you were to enable 4-pin yourself.
Thanks for your reply. How should i troubleshoot a issue I only got with a software you provide without getting any information about the default values of the original bios? Kind of funny. Like I didn’t mentioned multiple times: there is no fan issue with X37AG807.BST.
I really appreciate the work you put into the bios and all the correspondence with Biostar who seem to ignore you. The situation and handling of the issue I got looks very similar to me. I asked for a possible solution and the “only” reply I got is “can’t reproduce. Can’t fix. Troubleshoot yourself”. Pretty much the same behavior.
@Screemer I’d start with taking the fans out of the daisy chain and seeing how they behave. Do you use any fan controllers? I’d check / remove those as well. Without being able to reproduce your problem I have no idea what to change if you can isolate the cause of the problem your end then I can most likely do something to remedy it.
Time for some fun guys. @ket @Lost_N_BIOS Another bios with 1.0.0.6 PinnaclePi was released for some MSI boards. Link: https://www.msi.com/Motherboard/support/…MING-PRO-CARBON. I guess we could try to port it now that we have more than one source for the AGESA.
Sorry, I forgot to dig back into that on page 3 when you gave me a link previously! I will leave this page open so I remember check it out tonight when I have more time
No download there, only Live update link/info. You’ll have to find us a copy of this BIOS @barisuraz
@barisuraz Biostar can’t be bothered to update their firmware. The excuse being used is “we only just updated to 1004c” so don’t hold any hope that you’ll get a AGESA 1006 firmware from Biostar. I’m still pushing them to sort out memory compatibility so perhaps there will be some movement in that area soon. For now at least, I’m using the X470 Fatal1ty K4 and the board is currently running 3466MHz without even so much as a hiccup and will go as high as 3600MHz but I still need to work on tightening the timings at 3600. Heres a quick screen of results at 3466 on the K4, way better than the GT7 can even dream of achieving at the moment. 
Thanks, I didn’t think to edit the previous BIOS URL with new BIOS name, I must be tired
I found 9x modules where Agesa is mentioned, along with the version details, so I think at least that many will need swapped or at least edited in some way/part.